經濟部智慧財產局員工消費合作社印製 1221207 五、發明說明（/ ) 發明背景 本發明是有關於一種光學透鏡單元（lens umt)，尤其是 裝在攜帶通信機器的光學透鏡單元，與光學透鏡之焦點位 置調整機構有關的光學透鏡單元。 近年來攜帶用攝影機器與移動體通信機器的進展曰新 月異，且現在隨著移動體通信機器之情報傳送容量的擴 大，具備攝影機器之攜帶電話等之移動體通信機器的開發 方興未艾，這不只是將行動電話當做聲音通信用機器而 已，而是實現攝影機器以及其影像的通信機器。光學透鏡 單元是攝影機器不可或缺的零件，關於傳統的光學透鏡單 元，將以圖1做說明，圖1爲光學透鏡單元的斷面構成圖。 如圖1所示的光學透鏡單元10包括透鏡座（lens holder)ll、光學透鏡12、透鏡鏡筒13與光學透鏡安裝環 (ring)14 〇 透鏡座11呈圓筒狀，在其內壁形成螺旋溝15。 透鏡鏡筒13的外周壁的一部分與上述透鏡座11的內 周壁連接，呈筒狀，在其外壁形成螺旋溝16，與透鏡座11 的螺旋溝15嵌合。而且透鏡鏡筒13會根據螺旋溝15、16 的螺旋式轉動，在透鏡座11內，可沿著光軸1的方向移 動，爲一可動機構。 光學透鏡12沿著其外周有平坦狀的邊，以上述的透 鏡鏡筒13與光學透鏡安裝環14夾住此平坦狀的邊，加以 保持、固定。 在上述的結構中，從光源2發出的光，以光學透鏡12 4 (請先閱讀背面之注意事項再填寫本頁) -Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221207 V. Description of the invention (/) Background of the invention The present invention relates to an optical lens unit (lens umt), especially an optical lens unit mounted on a portable communication device, and the optical lens unit. Optical lens unit related to focus position adjustment mechanism. In recent years, progress has been made in portable cameras and mobile communication devices. With the expansion of the information transmission capacity of mobile communication devices, the development of mobile communication devices equipped with camera phones and other mobile phones is still in the ascendant. It is not just a mobile phone as a device for voice communication, but a communication device that realizes a camera and its image. The optical lens unit is an indispensable part of a photographing machine. A conventional optical lens unit will be described with reference to FIG. 1, which is a sectional configuration diagram of the optical lens unit. The optical lens unit 10 shown in FIG. 1 includes a lens holder 11, an optical lens 12, a lens barrel 13, and an optical lens mounting ring 14. The lens holder 11 has a cylindrical shape and is formed on an inner wall thereof. Helical groove 15. A part of the outer peripheral wall of the lens barrel 13 is connected to the inner peripheral wall of the lens holder 11 in a cylindrical shape, and a spiral groove 16 is formed on the outer wall thereof, and the spiral groove 15 is fitted into the lens holder 11. In addition, the lens barrel 13 rotates in a spiral manner according to the spiral grooves 15 and 16, and can be moved in the direction of the optical axis 1 in the lens holder 11 as a movable mechanism. The optical lens 12 has a flat side along its outer periphery. The flat side is sandwiched between the above-mentioned lens barrel 13 and the optical lens mounting ring 14 to be held and fixed. In the above structure, the light emitted from the light source 2 is an optical lens 12 4 (Please read the precautions on the back before filling this page)-
- - -----訂·--------U 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 7 7 3 3pi f. doc / 0 0 9 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（2) 集光，然後在結像面結像。而且以透鏡鏡筒13與光學透 鏡安裝環14固定保持的光學透鏡12，可用上述的可動機 構，在透鏡座11內沿著光軸1的方向移動，即可調整光 學透鏡12的焦點位置。 向來在光學透鏡單元中，上述的光學透鏡之焦點位置 調整機構是必備的零件，這是因爲在光學透鏡上存在著焦 點距離的誤差（scattering)之故。光學透鏡一般是以金屬模 成形的方式大量生產’亦即將樹脂倒入金屬模內加熱’製 造透鏡的方法’ 一個金屬模通常可以製造數個光學透鏡’ 可以延長加熱時間來提高光學透鏡的特性’但從生產效率 面來看，加熱時間有日漸縮短的趨勢’因此’各個光學透 鏡就產生了焦點距離最初特性的誤差’爲7修正此焦點距 離的誤差，於是就需要上述的焦點位置調1整機構° 但是，以前的光學透鏡單元，將焦點位置調整機構設 在透鏡鏡筒13與透鏡座11之間，是以螺旋溝15、16所構 成的，而旦光學透鏡與其保持體成一體’爲可動式，因此’ 光學透鏡單元10不容易小型化。且爲了構成這種可動機 構，隨著_件數目的增加，有時會對組合的精度造成不良 的影響，旦連接光學透鏡與結像面的空間’即在透鏡座11 內部有螺旋溝15與16的滑動部分，因此，在此滑動部分 所產生的摩擦屑，有時會對在結像面的結像造成不良的影 響。 5 尺度適用$準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注咅？事項再填寫本頁) . -·線· 1221207 733pif.doc/009 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（3 ) 本發明係有鑑於上述的情形而提出的，其目的在於 提供可將透鏡焦點位置調整機構簡單化、小型化的光學透 鏡單元。 上述的目的是靠以下的光學透鏡單元達成的，其中 包括：集光的光學透鏡、在內周面具有支持前述光學透鏡 之一方表面外周部之支持部的筒狀透鏡座、介於前述支持 部與前述光學透鏡之間的彈性構件、設在前述的透鏡座 內，可沿著前述光學透鏡的光軸方向移動，與前述透鏡座 一起夾住前述光學透鏡，以保持該光學透鏡的透鏡鏡筒、 該透鏡鏡筒以一方的開口端壓住前述光學透鏡之他方表面 的外周部，使前述彈性構件變形，以控制前述光學透鏡的 焦點位置。 而且，上述的目的是靠以下的光學透鏡單元達成的， 其中包括：集光的光學透鏡、沿著該光學透鏡之外周部的 圓周方向具有第1傾斜、在內周面具有支持前述光學透鏡 之一方表面外周部之支持部的筒狀透鏡座、該透鏡座在其 支持部，沿著對應前述第1傾斜之圓周方向設有第2傾斜、 可在前述透鏡座內，沿著前述光學透鏡的光軸方向移動， 與前述光學透鏡嵌合的透鏡鏡筒、該透鏡鏡筒連接前述光 學透鏡的第1傾斜與前述透鏡座的第2傾斜，使該光學透 鏡往圓周方向轉動，以控制前述光學透鏡的焦點位置。 在前面的記述中談到發明的目的與優點，有些在記 述中是顯而易見的，有些則可從發明的實施例中習知。在 下文中將特別舉出方法與組合，以幫助了解並達成發明的 6 (請先閱讀背面之注意事項再填寫本頁) . 線- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 經濟部智慧財產局員工消費合作社印製 五、發明說明（斗） 目的與優點。 圖式之簡單說明 附加的圖式構成詳細說明的一部分，而實施例即爲 發明較佳的具體化，上文爲一般的說明，而較佳具體化的 詳細說明如下文所述，適合用來解釋發明的原理。 圖1 :習知之光學透鏡單元的斷面構成圖。 圖2A :構成依照本發明之第1實施例之光學透鏡單 元之各構件的斜視圖。 圖2B、2C :在圖2A所示之光學透鏡單元中，遠離 與靠近焦點位置時，光學透鏡單元的斷面構成圖。 圖3A :構成依照本發明之第2實施例之光學透鏡單 元之各構件的斜視圖。 圖3B、3C :在圖圖3A所示之光學透鏡單元中，遠 離與靠近焦點位置時之光學透鏡單元的斷面構成圖。 圖4A :依照本發明之第3實施例之光學透鏡單元的 部分斜視斷面圖。 圖4B :在圖4A所示的光學透鏡單元中，透鏡座的鳥 瞰圖。 圖4C、4D :在圖4A所示的光學透鏡單元中，遠離 與靠近焦點位置時之光學透鏡單元的斷面構成圖。 圖5A :構成依照本發明之第4實施例之光學透鏡單 元之各構件的斜視圖。 圖5B、5C :在圖5A所示的光學透鏡單元中，遠離 7 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 χ 297公釐） (請先閱讀背面之注意事項再填寫本頁) - 訂： -·線' •i 1221207 經濟部智慧財產局員工消費合作社印製 五 、發明說明（y) 與靠近焦點位置時之光學透鏡單元的斷面構成圖。 圖5D :依照第4實施例之變形例之光學透鏡單元的 斷面圖。 圖6A :構成依照本發明之第5實施例之光學透鏡單 元之各構件的斜視圖。 圖6B、6C :在圖6A所示的光學透鏡單元中，遠離 與靠近焦點位置時之光學透鏡單元的斷面構成圖。 圖6D :構成依照第4實施例之變形例之光學透鏡單 元之各構件的斜視圖。 圖7A :構成依照本發明之第6實施例之光學透鏡單 元之各構件的斜視圖。 圖7B、7C :在圖7A所示的光學透鏡單元中，遠離 與靠近焦點位置時之光學透鏡單元的斷面構成圖。 圖8A、8B :構成依照本發明之第7實施例之光學透 鏡單元之各構件的斜視圖。 圖9A :依照本發明之第1至第7實施例之第1變形 例之光學透鏡單元的斷面圖。 圖9B :構成依照本發明之第丨至第7實施例之第2 變形例之光學透鏡單元各構件的斜視圖。 圖9C ··圖9B所不之光學透鏡單元的斷面圖。 _式之標記說明= 1. 光軸 2. 光源 8 -Γ--— — — — — — — — — —— (請先閱讀背面之注咅？事項再填寫本頁) . --線· 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 經濟部智慧財產局員工消費合作社印製 五、發明說明u ) 3. 光軸 4. 光源 5. 結像面 10. 光學透鏡單元 11. 透鏡座 13. 透鏡鏡筒 14. 光學透鏡安裝環 15. 螺旋溝 16. 螺旋溝 20.光學透鏡單元 30. 透鏡座 31. 開口（部） 32. 螺旋溝 33. 凸緣面 34. 突起 34.1〜34.3.傾斜 35.1〜35.3.傾斜 36.瀘色板 40. 緩衝墊 41. 彈簧 50.光學透鏡 51.1〜51.3.突起 52.1〜52.3.突起 53.光學透鏡 (請先閱讀背面之注意事項再填寫本頁) -線_ 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 733pif.d〇c/〇〇9 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（7 ) 54.光學透鏡 60. 透鏡鏡筒 61. 螺旋溝 62. 突起 63. 空洞 63.1〜63.3.傾斜 64. 溝 65. 第1外周部 66. 第2外周部 70. 透鏡蓋 71. 與透鏡鏡筒接觸的面 72.71反對側的面 73. 焦點調整導板 74. 與透鏡蓋70接觸的面 80.保持部 90.保持構件 較佳實施例之詳細說明 圖2A是表依照本發明之第1實施例，構成具有光學 透鏡之焦點位置調整機構之各構件的斜視圖。圖2B、圖2C 爲光學透鏡單元的斷面圖。 如圖所示，光學透鏡單元20具有透鏡座30、緩衝墊 (custnonHO、光學透鏡50、透鏡鏡筒60。 透鏡座30，在底面的一部分具有開口 31，呈圓筒狀， 10 (請先閱讀背面之注意事項再填寫本頁) -------- Order · -------- U This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 1221207 7 7 3 3pi f. Doc / 0 0 9 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of Invention (2) Gather light, and then form an image on the image surface. Furthermore, the optical lens 12 fixedly held by the lens barrel 13 and the optical lens mounting ring 14 can be adjusted by the above-mentioned movable mechanism in the lens holder 11 along the optical axis 1 to adjust the focal position of the optical lens 12. In the optical lens unit, the above-mentioned focus position adjustment mechanism of the optical lens has always been an indispensable part because there is a scattering of the focal point distance on the optical lens. Optical lenses are generally mass-produced in the form of metal molds. That is, the resin is poured into a metal mold and heated. However, from the perspective of production efficiency, the heating time tends to be shortened. Therefore, 'the initial characteristics of the focal distance error of each optical lens' is 7 to correct this focal distance error, so the above-mentioned focus position needs to be adjusted to 1. Mechanism ° However, in the previous optical lens unit, the focus position adjustment mechanism was provided between the lens barrel 13 and the lens holder 11 and was formed by spiral grooves 15 and 16, and the optical lens was integrated with its holder. Since it is movable, the size of the optical lens unit 10 cannot be easily reduced. And in order to constitute such a movable mechanism, as the number of components increases, it sometimes adversely affects the accuracy of the combination. Once the space between the optical lens and the image plane is connected, that is, there is a spiral groove 15 inside the lens holder 11 and 16 sliding part, so the friction debris generated in this sliding part may adversely affect the knot image on the knot image surface. 5 scales are applicable to the standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page).-· Line · 1221207 733pif.doc / 009 A7 B7 Intellectual Property Bureau, Ministry of Economic Affairs Printed by Employee Consumer Cooperatives 5. Description of the Invention (3) The present invention was made in view of the above circumstances, and its purpose is to provide an optical lens unit that can simplify and miniaturize the lens focus position adjustment mechanism. The above object is achieved by the following optical lens unit, which includes: an optical lens that collects light, a cylindrical lens holder having a support portion on an inner peripheral surface that supports one of the surfaces of the optical lens and an outer peripheral portion, and the intermediate portion The elastic member between the optical lens and the lens holder is provided in the lens holder, and can be moved along the optical axis direction of the optical lens. The optical lens is sandwiched with the lens holder to hold the lens barrel of the optical lens. The lens barrel presses the outer peripheral portion of the other surface of the optical lens with one open end to deform the elastic member to control the focal position of the optical lens. In addition, the above-mentioned object is achieved by the following optical lens unit, which includes: an optical lens that collects light, has a first inclination along a circumferential direction of an outer peripheral portion of the optical lens, and has an inner peripheral surface that supports the optical lens. The cylindrical lens holder of the support portion of the outer peripheral portion of one surface, and the lens holder at the support portion is provided with a second inclination in a circumferential direction corresponding to the first inclination, and can be arranged in the lens holder along the optical lens. The optical lens is moved in the direction of the optical axis, and the lens barrel fitted with the optical lens connects the first inclination of the optical lens and the second inclination of the lens holder to rotate the optical lens in a circumferential direction to control the optical The focal position of the lens. In the foregoing description, the purpose and advantages of the invention are mentioned, some of which are obvious in the description, and some of which can be learned from the embodiments of the invention. In the following, methods and combinations are specifically listed to help understand and achieve the 6th invention (please read the precautions on the back before filling out this page). Line-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 (Mm) 1221207 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (Battle) Purpose and Advantages. Brief description of the drawings The attached drawings constitute part of the detailed description, and the embodiment is a preferred embodiment of the invention. The above is a general description. The detailed description of the preferred embodiment is as follows, which is suitable for Explain the principles of the invention. Figure 1: A cross-sectional configuration diagram of a conventional optical lens unit. Fig. 2A is a perspective view of each member constituting the optical lens unit according to the first embodiment of the present invention. Figs. 2B and 2C: In the optical lens unit shown in Fig. 2A, the sectional structure diagram of the optical lens unit when it is far from and close to the focal position. Fig. 3A is a perspective view of each member constituting an optical lens unit according to a second embodiment of the present invention. Figs. 3B and 3C: In the optical lens unit shown in Fig. 3A, a sectional configuration diagram of the optical lens unit when it is far away from and close to a focal position. Fig. 4A is a partially oblique sectional view of an optical lens unit according to a third embodiment of the present invention. Fig. 4B: A bird's-eye view of a lens holder in the optical lens unit shown in Fig. 4A. 4C and 4D: In the optical lens unit shown in FIG. 4A, a sectional configuration diagram of the optical lens unit when it is far from and near the focal position. Fig. 5A is a perspective view of each member constituting an optical lens unit according to a fourth embodiment of the present invention. Figure 5B, 5C: In the optical lens unit shown in Figure 5A, away from 7 paper sizes, the Chinese National Standard (CNS) A4 specification (21〇χ 297 mm) is applied (Please read the precautions on the back before filling this page )-Order:-· line '• i 1221207 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (y) and the sectional structure diagram of the optical lens unit when it is close to the focal position. Fig. 5D is a sectional view of an optical lens unit according to a modification of the fourth embodiment. Fig. 6A is a perspective view of each member constituting an optical lens unit according to a fifth embodiment of the present invention. Figs. 6B and 6C are cross-sectional configuration diagrams of the optical lens unit shown in Fig. 6A when the optical lens unit is far from and near the focal position. Fig. 6D is a perspective view of each member constituting an optical lens unit according to a modification of the fourth embodiment. Fig. 7A is a perspective view of each member constituting an optical lens unit according to a sixth embodiment of the present invention. 7B and 7C: In the optical lens unit shown in FIG. 7A, a sectional configuration diagram of the optical lens unit when it is far from and close to a focal position. Figs. 8A and 8B are perspective views of respective members constituting an optical lens unit according to a seventh embodiment of the present invention. Fig. 9A is a sectional view of an optical lens unit according to a first modified example of the first to seventh embodiments of the present invention. FIG. 9B is a perspective view of each member constituting an optical lens unit according to a second modification of the seventh to seventh embodiments of the present invention. Fig. 9C is a sectional view of the optical lens unit shown in Fig. 9B. Explanation of the _ type mark = 1. Optical axis 2. Light source 8 -Γ --- — — — — — — — — — (Please read the note on the back first? Matters before filling out this page). Paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 1221207 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention u) 3. Optical axis 4. Light source 5. Junction surface 10. Optical Lens unit 11. Lens base 13. Lens barrel 14. Optical lens mounting ring 15. Spiral groove 16. Spiral groove 20. Optical lens unit 30. Lens base 31. Opening (section) 32. Spiral groove 33. Flange surface 34 Protrusions 34.1 ~ 34.3. Inclined 35.1 ~ 35.3. Inclined 36. Black plate 40. Cushion pad 41. Spring 50. Optical lens 51.1 ~ 51.3. Protrusions 52.1 ~ 52.3. Protrusion 53. Optical lens (Please read the precautions on the back first. (Fill in this page again) -Line_ This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 1221207 733pif.d〇c / 〇〇9 A7 B7 Printed by the Consumers ’Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs Description of the invention (7) 54. Optical lens 60. Lens barrel 61. Spiral groove 62. Protrusion 63 Cavities 63.1 ~ 63.3. Inclined 64. Grooves 65. First outer peripheral portion 66. Second outer peripheral portion 70. Lens cover 71. Face 72.71 in contact with the lens barrel Surface 73. Focus adjustment guide 74. With lens The contact surface 80 of the cover 70. The detailed description of the preferred embodiment of the holding member. FIG. 2A is a perspective view of each member constituting a focal position adjustment mechanism having an optical lens according to the first embodiment of the present invention. 2B and 2C are cross-sectional views of the optical lens unit. As shown in the figure, the optical lens unit 20 has a lens holder 30, a cushion (custnonHO, an optical lens 50, and a lens barrel 60. The lens holder 30 has an opening 31 in a part of the bottom surface, and has a cylindrical shape. 10 (Please read first (Notes on the back then fill out this page)-
訂---------線U 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 3 p 1 f . d 〇 c / 〇 〇 9 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（8 ) 在內壁形成螺旋溝32 ^ 緩衝墊4〇具有與光學透鏡50類似的屈折率，是一種 具有密封（seal)性與彈性的黑色光吸收體，呈環（nng)狀。 此緩衝墊40設在上述透鏡座30的底面（凸緣（flange)面33) 上，以其密封性與凸緣面33貼緊在一起。 光學透鏡50，其外周部分之平坦狀的邊部分與上述的 緩衝墊40接觸’設置在透鏡座30的凸緣面33上。此光 學透鏡50的中央部與透鏡座30的開口 31配置在光軸3 上。且緩衝墊40也與光學透鏡50之平坦狀的邊貼緊在一 起。 透鏡鏡筒60，在上面及底面具有呈圓筒狀的開口’其 —部分的外周與上述透鏡座3〇的內周相等，而且，透鏡 鏡筒60的外周壁設有與透鏡座3〇之螺旋溝32嵌合的螺 旋溝61。且以此透鏡鏡筒6〇之光學透鏡50側之開口纟而與 緩衝墊40夾住上述光學透鏡50之平坦狀的邊，以固定、 保持光學透鏡50。 在上述的結構中，從光源4發出的光，以光學透鏡5〇 集光，經過透鏡座30的開口 31，在結像面5上結像。而 且，在結像面5有不能圖示的光感知器(sensor) ° 接箸將一面參照圖2B及圖2C，對光學透鏡50之焦 點位置的調整方法做說明。圖2B是遠離光學透鏡之焦點 位置時，光學透鏡單元的斷面圖。圖2C是靠近光學透鏡 之焦點位置時，光學透鏡單元的斷面圖。 調整焦點位置的方法：以螺旋式轉動機構將透鏡鏡筒 (請先閱讀背面之注意事項再填寫本頁) # 訂： _線_ 票準(CNSM4規格(⑽X 297公爱) 1221207 7733pif.doc/009 A7 B7 五、發明說明（ 經濟部智慧財產局員工消費合作社印製 6〇對著透鏡座3〇，使之沿著光軸3的方向（在圖邛、I 中爲上下方向）賴’蝴2B所示，將―鏡筒60對著 透鏡座30塞入」於是緩衝墊40就會因其彈性而被壓縮， 因此，光學透鏡50就會往透鏡座30之〇緣面幻方面移 動。反之，則如H 2C所不，將透鏡鏡筒對著透鏡座 拉出，於是緩衝墊40就會因其彈性而膨脹，因此，光學 透鏡50就會從透鏡座30之凸緣面33往透鏡鏡筒60方面 移動，如此操作，就可調整光學透鏡50的焦點位置。 具有如上所述之光學透鏡之焦點位置調整機構的光學 透鏡單元，其透鏡鏡筒60的結構只要能夠將光學透鏡50 塞入就可以了。而且，以緩衝墊40的彈性變形來調整光 學透鏡50的焦點位置，因此，可減少焦點位置調整機構 的零件數，同時達到結構的簡單化，以及光學透鏡單元的 小型化與組合工程的簡單化。 而且在光學透鏡5〇與透鏡座30的凸緣面33之間設 置緩衝墊40，因此，可防止在螺旋溝32、61所產生的摩 擦屑侵入連接光學透鏡50與結像面的空間。且緩衝墊40 是以和光學透鏡50之屈折率類似的材質所構成的，因此， 進入平坦狀邊的迷光幾乎不會反射在光學透鏡5 0與緩衝 墊40的界面，而射入緩衝墊40。且緩衝墊40爲黑色光吸 收體，因此，射入緩衝墊40的迷光會被此緩衝墊40吸收， 因此，可防止不需要的迷光進入結像面5。且可減少光斑 (flare)等的僞信號，可提高在結像面5之結像的對比度 (contrast) 〇 12 本紙張尺度適用中國國豕標準（CNS)A4規格（21〇 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) · -1線· 1221207 A7 B7 7733pif.doc/009 五、發明說明（/〇 ) (請先閱讀背面之注意事項再填寫本頁) 接著以圖3A至圖3C來說明依照本發明之第2實施例 的光學透鏡單元。圖3A爲構成具有光學透鏡之焦點位置 調整機構之光學透鏡單元之各構件的斜視圖。圖3B、圖3C 爲各構件組合後之光學透鏡單元的斷面構成圖。 如圖所示，光學透鏡單元20具有透鏡座30、緩衝墊 40、光學透鏡50、透鏡鏡筒60與透鏡蓋（lens cover)70。 在透鏡座30底面的一部分具有開口 31，呈圓筒狀， 在外周壁設有突起34。 緩衝墊40具有與光學透鏡50類似的屈折率，而且是 一種成環狀具有密封性與彈性的黑色光吸收體。此緩衝墊 40設置在上述透鏡座30的底面（凸緣面33)上’以其密封 性和凸緣面33貼緊在一起。 --線· 光學透鏡50，其平坦的邊緣部分與上述的緩衝墊40 接觸，設眞在透鏡座的凸緣面33上。此光學透鏡50 的中央部與透鏡座30之開口 31被配置在光軸上。 且緩衝墊4〇也貼緊光學透鏡5〇的邊。 經濟部智慧財產局員工消費合作社印製 透鏡鏡筒60呈圓筒狀，在其壁內設有夾住上述透鏡 座30的溝64 ’且在相當於透鏡座3〇之突起34的位置上 設有空洞63,並在與透鏡蓋70接觸的開口端設有突起62， 此突起62是爲了決定對透鏡鏡筒60之透鏡蓋70的面方 向而設的’至少須設置3個以上° 透鏡_ 70是一種保護光學透鏡50的透明蓋’與透鏡 鏡筒60的突起62嵌合。 如上所述，依照本實施例的光學透鏡單元20，其透鏡 本紙張尺度適用中國國家楳準（CNS)A4規格（210 x 297公釐） 1221207 7733pif.doc/009 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（"） 鏡筒60與透鏡座30並沒有特別加以固定，本光學透鏡單 元20，其透鏡鏡筒60的溝64夾住透鏡座30，是一個沿著 光軸3可自由浮動(fi〇ating)的結構，且透鏡鏡筒6〇的活動 範圍僅限於突起34在空洞63內的活動範圍。 在上述的結構中，從光源4所發出的光，通過透鏡蓋 70射入光學透鏡單元20，以光學透鏡5〇集光，通過透鏡 座30的開口部31，然後在結像面5結像。 接者一面參照圖3B及圖3C —面說明光學透鏡50之 焦點位置的調整方法。圖3B爲遠離光學透鏡之焦點位置 時光學透鏡單元的斷面圖，而贿3C；是靠近光學透鏡之焦 點位置時光學透鏡單元的斷面_。 調整焦點位置的方法：使透鏡蓋7〇沿著光軸3的方 向^圖3B、3C中爲上下方向)移動，如圖3B所示，將透 鏡蓋7〇對著光學透鏡5〇塞入，於是透鏡鏡筒6〇就會將 =學透鏡50往透鏡座3〇的33方酬住，緩衝墊4〇 受此壓力因其弓早性而被壓縮’於是光學透鏡5〇就會往凸 緣面33方酵動。反之，則如tt 3C所示，透鏡蓋30遠 離光學透鏡5G時’緩衝墊4G _其彈性而膨脹，於是， 光學迈1¾ 50就會從凸緣面33往光學透鏡蓋7〇方酵動， 如此操作，就可調整光學透_元中之光學翻的焦點位 置。 —如上所述，關本實軸的光學遲單元，藉由往透 鏡蓋70施加壓力，來調整在透鏡鏡筒6〇在光軸上透鏡座 30內的位置。且將透鏡_ 6G往_座3Q塞人或拉出來 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297 (請先閱讀背面之注音？事項再填寫本頁) · ;線. 經濟部智慧財產局員工消費合作社印製 1221207 五、發明說明（/2) 控制緩衝墊40的彈性變形量，藉此來調整光學透鏡5〇的 焦點距離。因此’在透鏡座30及透鏡鏡筒6〇上就不必設 置螺旋溝，因無此螺旋溝，故可大幅簡化透鏡座30及透 鏡鏡筒60的形狀，並謀求光學透鏡單元的小型化，因此， 可簡化這些構件的製造工程，並降低製造成本。結果，可 大幅降低光學透鏡單元的製造成本，因可進一步簡化組合 工程，故可提高組合的精度，並解決因螺旋溝摩擦所產生 摩擦屑的問題。而且，因在透鏡筒60上設置突起62，故 施加在透鏡蓋70的壓力僅及於此突起62，因此，可降低 對於透鏡蓋70，透鏡鏡筒60往橫方向移動的負荷。 於是，若根據本實施例的話，可實現生產性及結像面 上之像的信賴性更優異的光學透鏡單元。 接著以圖4A至圖4D來說明按照本發明之第3實施例 的光學透鏡單元。在本實施例中使用彈簧以取代在上述第 2實施例中所使用的緩衝墊40。圖4A爲構成按照本實施 例之光學透鏡單元之一部分構件的斜視圖。圖4B是在圖4A 所示的光學透鏡單元中透鏡座的鳥瞰圖。圖4C、圖4D是 光學透鏡單元的斷面圖。 如圖所示，按照本實施例的光學透鏡單元20，使用設 在透鏡座30之凸緣面33上的彈簧41以取代緩衝墊40 ’ 此彈簧41爲凸緣面3 3的一部分’是從該凸緣面3 3突出 之折翼(flap)狀的彈簧。此彈簧41的上端面接著光學透鏡 50之平坦狀的邊，而且，如在上述第1、第2實施例中所 說明的，藉由調整施加在透鏡鏡筒60上的壓力’來增減 15 ϋ張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注咅？事項再填寫本頁) ---------訂---------1▲ 經濟部智慧財產局員工消費合作社印製 1221207 7 7 3 3 p 1 f · d 〇 c / 0 〇 9 A7 ---— B7_ 五、發明說明（/3 ) 對彈簧41的壓力’即可調整光學透鏡5〇的焦點位置（參照 圖 4C、圖 4D)。 如i:所述’若根據本實施例的話，因使用與透鏡座30 一體成形的彈簧41當做緩衝墊40，故可減少光學透鏡單 元的組合零件數，可簡化組合工程並降低成本。而且，本 實施例以彈簧41取代第2實施例中的緩衝墊40，當然也 適用於第1實施例般的結構，但若考慮螺旋式轉動機構所 產生的摩擦屑問題，最好還是應用在沒使用螺旋的構造(如 第2實施例)上。 接著以圖5A至圖5C來說明按照本發明之第4實施例 的光學透鏡單元。本實施例是有關於不採用上述第2實施 例中所說明的螺旋式轉動，在具有焦點位置調整機構的光 學透鏡單元中’控制對緩衝墊40施壓的結構。圖5A是構 成光學透鏡單元之各構件的斜視圖。圖5B、圖5C是各構 件組合後之光學透鏡單元的斷面構成圖。 本實施例係在第2實施例中再設置焦點調整導（sluie) 板’把透鏡蓋與焦點調整導板當做透鏡焦點位置調整機構 使用。 如圖所示’讓緩衝墊40介於透鏡座30之凸緣面33 上與光學透鏡50之間，以透鏡鏡筒6〇與透鏡座30的凸 緣面33夾住此光學透鏡50的邊。在透鏡鏡筒60上設置 透鏡蓋70，透鏡蓋70與透鏡鏡筒60以突起62嵌合。 在透鏡蓋70中，與透鏡鏡筒60接觸的面71，其垂線 與光學透鏡50之光軸3平行。另一方面，反對側的面72， 16 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) .. -線· 1221207 7733pif.d〇c/〇09 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（/4 ) 其垂線與光軸3呈具有所定角度的傾斜。 在此透鏡蓋70上，於透鏡蓋70的面72上設置一方 之面接觸的焦點調整導板73 ’此焦點調整導板73與透鏡 蓋70接觸的面74也設有與透鏡蓋70之面72 —樣的傾斜。 在上述的結構中’從光源4所發出的光，通過焦點調 整導板73與透鏡蓋7〇 ’射入光學透鏡單元20。然後以光 學透鏡50集聚此入射光’通過透鏡座30的開口部31，然 後在結像面5上結像。 接著將一面參照圖5B及圖5C —面說明光學透鏡50 之焦點位置的調整方法。圖5B爲遠離光學透鏡之焦點位 置時，光學透鏡單元的斷面圖。圖5C爲靠近光學透鏡之 焦點位置時，光學透鏡單元的斷面圖。 焦點fii置的調整方法·焦點調整導板7 3在對光軸3 直交的方向（在圖5B、圖5C爲左右方向）平行移動來進行。 在與透鏡蓋70接觸的面74有傾斜的焦點調整導板73平 行移動，對與焦點調整導板73之接觸面72，具有同樣傾 斜的透鏡蓋70產生壓力。具體而言，在圖5A中，若使焦 點調整導板73往右方向平行移動的話，就會對透鏡蓋7〇 產生如圖5B所示之往下的壓力，結果，透鏡鏡筒60會把 光學透鏡50往透鏡座30的凸緣面33施壓，由於此壓力， 緩衝墊40因其彈性的關係而被壓縮。反之，則如圖5C所 示，使焦點調整導板73往左平形移動的場合，施予透鏡 蓋70的壓力就會減輕，透鏡蓋70就會往上移動，於是， 緩衝墊40會因其彈性而膨脹，結果，光學透鏡50就會從 17 表紙張尺度適用中關家標準（CNS)A4規格⑽X 297公爱)' "" ---- (請先閱讀背面之注意事項再填寫本頁) 訂_ · --線· 1221207 A7 B7 7733pif.doc/009 五、發明說明（/s ) (請先閱讀背面之注咅？事項再填寫本頁) 凸緣面33往透鏡蓋70側移動，如此操作，藉著施予透鏡 蓋70的力量使緩衝墊40彈性變形，即可沿著光軸3的方 向調整光學透鏡50的位置。 根據上述的結構與焦點位置的調整方法，以焦點調整 導板73對光軸3直交方向的平行移動來調整焦點位置， 因此，縮小了面72、74的傾斜角，故可對光學透鏡的焦 點位置進行更細微的調整。 另外，在本實施例中，在焦點調整導板73設置讓光 通過的窗戶，但焦點調整導板73若是透光的材質，就不 需要設此窗戶。 而且圖5A至圖5C是表示使用緩衝墊40之光學透鏡 單元的結構，但如圖5D所示之光學透鏡單元的斷面圖， 在第3實施例中所說明的，使用彈簧41之結構的場合也 可適用於本實施例。 .線· 經濟部智慧財產局員工消費合作社印製 接著以圖6A至圖6C來說明按照本發明之第5實施例 的光學透鏡單元。本實施例也和上述之第4實施例一樣， 是有關於不採用螺旋式轉動，具有焦點位置調整機構的光 學透鏡中，控制對緩衝墊40施予壓力的技術。圖6A爲構 成光學透鏡單元之各構件的斜視圖，圖6B、6C爲各構件 組合後之光學透鏡單元的斷面圖。 在本實施例中並沒改變如第4實施例般往橫方向施壓 的動作，而是將旋轉動作變換成壓力。 如圖所示，透鏡座30之底面的一部分有開口 31，呈 圓筒狀，而且在上面的開口端有3處沿著其圓周方向形成 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 經濟部智慧財產局員工消費合作社印製 1221207 五、發明說明（/6 ) 傾斜34.1〜34.3。 緩衝墊40具有與光學透鏡50類似的屈折率，而且它 是一種具有密封性與彈性的黑色光吸收體，成環狀。此緩 衝墊40設置在上述透鏡座30的底面（凸緣面33)上，以其 密封性與凸緣33貼緊在一起。 光學透鏡50的平坦狀邊緣部分與上述的緩衝墊40接 觸，設在透鏡座30的凸緣面33上。此光學透鏡50的中 央部與透鏡座30的開口 31配置在光軸3的位置上。且緩 衝墊也與光學透鏡50的邊緣貼緊在一起。 透鏡鏡筒60呈圓筒狀，至少具有2階段的外周部(第 1外周部65、第2外周部66)。第1外周部65的下面開口 端與光學透鏡50的邊緣接續，具有與透鏡座30之內周相 等的外周。而第2外周部66的下面與透鏡座30的上面開 口端接續。此第2外周部66與透鏡座30之上面開口端接 續的部分，沿著圓周方向設有3處傾斜63.1〜63.3 (在圖6A 中，由於圖面的關係只顯示傾斜63.1、63.2)，與透鏡座30 的傾斜34.1〜34.3相對應。而且，在穿設此透鏡鏡筒60 的圓筒空洞內有光軸3，以此透鏡鏡筒60與透鏡座30之 凸緣面33上的緩衝墊40夾住、固定、保持著上述光學透 鏡50的周邊部。 在上述的結構中，以光學透鏡50集聚入射光，通過 透鏡座30的開口 31，然後在結像面5上結像。 接著一面參照圖6B與圖6C —面說明光學透鏡50之 焦點位置的調整方法。圖6B爲遠離光學透鏡之焦點位置 19 (請先閱讀背面之注意事項再填寫本頁) -laj -·線- 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 A7 B7 五 _I____I_ 經濟部智慧財產局員工消費合作社印製 _7 733pif.d〇c/〇〇9 發明說明（丨7) 時，光學透鏡單元的斷面圖。圖6(：爲靠近光學透鏡之焦 點位置時，光學透鏡單元的斷面圖。 調整焦點位置的方法：使透鏡鏡筒60的第2外周邰66 與透鏡座30的上面開口端呈接續的狀態，使之沿圓周方 向轉動，透鏡鏡筒60會因此而對透鏡座30沿著光軸3的 方向移動，圖6B表光學透鏡50的焦點位置遠離的樣子。 例如使透鏡座30的傾斜34·1〜34·3各自與透鏡鏡筒6〇的 傾斜63.1〜63.3全面接續。於是，透鏡鏡筒6〇就會被塞 入透鏡座3〇內，故緩衝墊40會因其彈性而被壓縮，所以 光學透鏡50會往透鏡座30之凸緣面33側移動，爲圖6B 中所示的狀態。而使透鏡鏡筒60向左轉動的狀態則如圖6C 所示，因使之向左轉動，所以透鏡座30的傾斜34·1〜34·3 與透鏡鏡筒60之傾斜63.1〜63.3互相接續的領域會變小’ 透鏡鏡筒60則從透鏡座30拉出，結果，緩衝墊40會因 其彈性而膨脹，因此，光學透鏡50會從透鏡座3(3的凸緣 面33往透鏡鏡筒60側移動。如此操作’就可調整在光學 透鏡單元中光學透鏡的焦點位置。 即使以上述的方法，也可控制對緩衝墊40的壓力。 另外，如圖6D所示，當然也適用於使用彈簧41以取代緩 衝墊40的光學透鏡單元上。 接著以圖7A至圖7C來說明關於按照本發明之第6實 施例的光學透鏡單元。圖7A表構成具有光學透鏡之焦點 位置調整機構之光學透鏡單元各構件的斜視圖，圖7B、 圖7C爲各構件組合後之光學透鏡單元的斷面構成圖。 20 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) 訂---------線· 1221207 五、發明說明（/ί ) 本實施例旨在說明沒使用上述第1至第5實施例中的 彈性構件（緩衝墊40、彈簧41等），並且沒使用螺旋式轉 動機構，也可調整光學透鏡之焦點位置的光學透鏡單元。 如圖所示，光學透鏡單元20具有透鏡座30、光學透 鏡50與透鏡鏡筒60。 透鏡座30之底面33(凸緣面33)的一部分，具有光軸3 通過，具有開口 31的圓筒部，而且在底面沿著其圓周方 向具有3處傾斜35.1〜35.3。 光學透鏡50有邊，被設置在上述透鏡座30之圓筒內 的凸緣面33上。在此光學透鏡中的邊與凸緣面33接觸的 面，沿著其圓周方向設置3處傾斜51.1〜5L3，與透鏡座 3〇的傾斜35.1〜35.3相對應，而且在沒有與凸緣面33接 觸之邊的面上，設有3個間隔大致相等的3個突起’而且 光學透鏡50的傾斜51.1〜51.3各自與透鏡座30的傾斜35.1 〜35.3接續，而將光學透鏡50裝置在透鏡座30內。 光學透鏡60，在光軸存在的領域具有穿設的開口， 與光學透鏡50的突起51.1〜51.3嵌合。 在上述的結構中，以光學透鏡50集聚從光源4所發 出的光，通過透鏡座30的開口 31，然後在結像面5上結 像。 接著一面參照圖7B及圖7C —面說明光學透鏡50之 焦點位置的調整方法。圖7B是遠離光學透鏡之焦點位置 時，光學透鏡單元的斷面圖。圖7C是靠近光學透鏡之焦 點位置時，光學透鏡單元的斷面圖。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注音？事項再填寫本頁) 言 Γ 經濟部智慧財產局員工消費合作社印製 1221207 7 3 3p: doc/ 009 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明（/7 ) 使透鏡鏡筒60沿著其周圍方向轉動來調整焦點位 置。使透鏡鏡筒60轉動，因它與突起52.1〜52.3嵌合， 故光學透鏡50在透鏡座30內也會跟著轉動，於是，使光 學透鏡50與凸緣面33接續，使之沿著圓周方向轉動，使 光學透鏡50對透鏡座30沿著光軸3的方向移動。圖7B 是表示遠離焦點位置的樣子，例如使光學透鏡50的傾斜 51.1〜51.3各自與透鏡座30的傾斜35.1〜35.3全面接續， 於是，光學透鏡50就會被塞入透鏡座30內，如圖7B所 示的狀態。使透鏡鏡筒60往右轉動的狀態則如圖7C所示， 由於是往右轉動，故透鏡座30的傾斜35.1〜35.3與光學 透鏡50之傾斜51.1〜51.3互相連接的領域會變小，光學 透鏡50會被從透鏡座30拉出，如此操作，就可調整在光 學透鏡單元中，光學透鏡的焦點位置。 若根據上述的結構與方法，因沒使用彈性構件，故 可進一步簡化光學透鏡單元的的結構。因此，可降低光學 透鏡單元的製造成本，並提高組裝的精度。 接著以圖A、圖B來說明按照本發明之第7實施例的 光學透鏡單元。圖8A爲構成具有光學透鏡之焦點位置調 整機構之光學透鏡單元各構件的斜視圖。圖8B爲從不同 的角度來看圖8A時，構成光學透鏡單元構件之一部分的 斜視圖。 光學透鏡單元，依其用途，也有使用剪切（cut)—定的 波長領域或合格之濾色板(color filter)的場合。本實施例係 在上述之第6實施例中，將這種濾色板放進光學透鏡單元 22 (請先閱讀背面之注意事項再填寫本頁) — p 言 Γ 良 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 1221207 7733ρίί·^οα/〇〇9 五、發明說明（2〇 ) 內。 如圖所示，透鏡座30之底面33的一部分，有光軸3 通過，具有開口（無法圖示）的圓筒部，在底面（凸緣面33) 上設置濾色板36以覆蓋此開口’而且在凸緣面33上配置 濾色板36時沒用到的領域，即在凸緣面33的4處沿著圓 周方向設置傾斜35.1〜35.4。 光學透鏡50的邊設有與透鏡座30的傾斜35.1〜35·4 相對應的4個傾斜（在圖8Α、圖8Β中，因圖面的關係’ 只顯示傾斜51.1〜51·3)。 如上所述，在凸緣面33沒用到領域設置4個傾斜35.1 〜35.4的效果如下所示。 在光學透鏡單元中使用濾色板是很常見的情形’但 一般的濾色板都製成正方形，因此，若從成本方面考量的 話，在光學透鏡單元中最好也使用正方形的濾色板。因爲 若爲配合透鏡座30的凸緣面33而使用圓形濾色板的話’ 就必須特別製造光學透鏡用的濾色板’會使成本增加。 經濟部智慧財產局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) -線· 而且濾色板最好不要設在透鏡座30與結像面5之間 的領域，因爲濾色板的端面部分會惹塵埃之故。因此，濾 色板必須設在結像面存在的空間之外，換言之，必須設在 光感知器存在的空間之外。 因此，在本實施例中，首先將正方形的濾色板36設 在凸緣面33上，然後在濾色板36與凸緣面33沒有重疊 且沒用到的領域設置傾斜，於是，傾斜數必然會4個，結 果，就可滿足上述的兩點要求。 23 本紙張尺度適用中國國家標準(CNS)A4規格（21〇 X 297公爱） 1221207 五、發明說明（2() 而且，本實施例始終配合濾色板的形狀來設置傾斜， 因此，使用如上述所說明的正方形濾色板，在4個沒用到 的領域設置4個傾斜是最好不過的實施例，但並不限於此 場合。 正如在第1至第7實施例中所說明的，根據本發明的 話，可減少構成焦點位置調整機構的零件數，故可簡化組 裝工程並謀求光學透鏡單元的小型化。即如在第1實施例 中所說明的，因採用螺旋式轉動機構，以緩衝墊40所受 的壓力來調整焦點位置，故可減少零件數。並且，因可將 設置螺旋的空間與結像面存在的空間分開，故可提高像的 信賴性，並抑制光斑等僞信號的發生，提高像的對比 (contrast)。 經濟部智慧財產局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) •線· 而且，就如在第2實施例中所做的說明，例如以透鏡 蓋70將透鏡筒60塞入，可省略螺旋式轉動機構，因可省 略此螺旋式轉動機構，故可大幅降低光學透鏡單元的製造 成本。因爲以金屬模成形等方式形成螺旋，除了成本高之 外，在技術上也有相當的困難。而且，若能省略螺旋式轉 動機構的話，不但可簡化組裝工程，也可抑制組裝時所產 生的特性誤差，並且可解決螺旋的摩擦屑問題。如此一來， 就可實現省略掉螺旋的焦點位置調整機構，對於光學透鏡 的製造方面與光學透鏡單元之焦點位置調整能力方面都有 莫大的助益。 再者，就如在第3實施例中所說明的，也可使用彈簧 41以取代緩衝墊40。若將彈簧41與凸緣33 —體成形的話， 24 本紙張尺度適用$國國家標準（CNS)A4規格（21〇 X 297公釐） --- 經濟部智慧財產局員工消費合作社印製 1221207 五、發明說明（2么） 可進一步減少零件數。而且取代緩衝墊40的東西只要是 具有彈性的東西就可以了，並不做特別的限定。在此對彈 性構件的材質做進一步的說明。彈性構件，最好是使用如 前述般，與光學透鏡單元具有相同屈折率之黑色光吸收體 的彈性構件。因爲這樣在結像面結像時，可防止迷光等所 給予的不良影響。彈性構件的材質，具體而言，有橡膠、 樹脂、彈簧等。且彈性構件對透鏡鏡筒60的彈性變形比， 最好是在1 : 10〜1 : 100以上，即最好使用彈性變形率在 1/10〜1/100以下的材質。在此場合，爲了調整焦點位置而 使透鏡鏡筒60移動時，實質上只能使彈性構件彈性變形， 因此，可將光學透鏡50的彈性變形抑制在最小的限度， 而提高光學透鏡單元結像的信賴性。 另外，固定光學零件的技術，在安裝光學零件方面， 有時會使用具有彈性之彈簧狀的環狀物(ring)，這種環狀物 主要是使用在其固定位置不重要的平面濾色鏡等方面。但 其目的是在緩和對濾色鏡的安裝零件的安裝壓力，並不將 光學透鏡之焦點位置的調整視爲問題。 而且，在本實施例中的緩衝墊與在上述之平面濾色 鏡中所使用之彈簧狀的安裝環(ring)不同，它具有包圍光學 透鏡與結像面之空間，使之與外部隔離的功能。同時對光 學透鏡的周邊部給予均等的壓力，故可提高光學透鏡單元 的焦點調整機能，並提高光學透鏡單元結像的信賴性。 又如在第4、5實施例中所做的說明般，藉由在透鏡 蓋70與焦點調整導板73設置的傾斜或設在透鏡座30與 25 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公髮） (請先閱讀背面之注意事項再填寫本頁) -------訂---------I 屬 經濟部智慧財產局員工消費合作社印製 1221207 五、發明說明CZ3) 透鏡鏡筒60的傾斜，將平行動作或轉動動作，變換成對 透鏡鏡筒60之透鏡座30內的壓力，可對焦點距離進行微 妙的調整。 使用在行動電話等攜帶機器之影像感知器的鏡頭直 徑正逐年縮小中，對於使用在如此微小的光學系統中的光 學透鏡給予直接負荷，對光學透鏡造成損傷而未能令人滿 意。但如在上述第4、第5實施例中所說明的，並未對光 學透鏡50直接施壓，而是將往焦點調整導板橫方向的滑 動或透鏡鏡筒60的轉動變換成壓力，因此，可以降低對 光學透鏡的負荷。另外，在詳細說明書中所說的「焦點位 置調整」只不過是修正光學透鏡的特性誤差而已，並非焦 點調整上使用的東西。而且在上述影像感知器中所使用的 透鏡有焦點距離及其移動量短的優點。因此，焦點位置調 整的範圍在彈性構件(緩衝墊40、彈簧41等）的彈性變形 範圍內就已足夠。此調整範圍，在數μηι〜數十μηι左右。 如前所述，在攜帶機器中所使用之微小光學系統，使用複 數透鏡群的情況並不多，一般是使用單眼透鏡。因此，在 上述第1至第7的實施例中，說明了光學透鏡只一個的光 學透鏡單元。但使用在攜帶機器上的影像感知器，有使用 由數個光學透鏡所構成的光學透鏡群，這種光學透鏡單元 也可適用本發明。關於本例如圖9Α所示。如圖所示，2 個光學透鏡53、54以保持部80保持著，此2個光學透鏡 53、54 —起動作。而若對光學透鏡再做進一步說明的話， 即使是使用沒邊之光學透鏡的場合，當然也適用本發明。 26 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）~ (請先閱讀背面之注意事項再填寫本頁) #Order --------- line U This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 1221207 3 p 1 f. D oc / 〇09 A7 B7 Intellectual property of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperatives. 5. Description of the invention (8) A spiral groove 32 is formed on the inner wall. The cushion pad 40 has a refractive index similar to that of the optical lens 50. It is a black light absorber with seal and elasticity. , In the shape of a ring (nng). This cushion pad 40 is provided on the bottom surface (flange surface 33) of the lens holder 30, and is tightly adhered to the flange surface 33 with its sealing property. The optical lens 50 is provided on the flange surface 33 of the lens holder 30 in such a manner that a flat side portion of the outer peripheral portion thereof is in contact with the aforementioned cushion pad 40 '. The central portion of the optical lens 50 and the opening 31 of the lens holder 30 are arranged on the optical axis 3. The cushion pad 40 is also in close contact with the flat side of the optical lens 50. The lens barrel 60 has a cylindrical opening on its upper and bottom surfaces. The outer periphery of the lens barrel 60 is equal to the inner periphery of the lens holder 30, and the outer peripheral wall of the lens barrel 60 is provided with the lens holder 30. The spiral groove 32 is fitted into the spiral groove 61. The flat side of the optical lens 50 is sandwiched between the opening of the optical lens 50 side of the lens barrel 60 and the cushion pad 40 to fix and hold the optical lens 50. In the above-mentioned structure, the light emitted from the light source 4 is collected by the optical lens 50, passes through the opening 31 of the lens holder 30, and is imaged on the image surface 5. Furthermore, a photo sensor (not shown) on the junction image plane 5 will be described with reference to FIGS. 2B and 2C, and a method of adjusting the focal point position of the optical lens 50 will be described. Fig. 2B is a sectional view of the optical lens unit when it is far from the focal position of the optical lens. Fig. 2C is a sectional view of the optical lens unit when it is near the focal position of the optical lens. How to adjust the focus position: Use a spiral rotation mechanism to move the lens barrel (please read the precautions on the back before filling this page) # Order: _ 线 _ 票 准 (CNSM4 Specification (规格 X 297 公 爱) 1221207 7733pif.doc / 009 A7 B7 V. Description of the Invention (The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed 60 on the lens holder 30, so that it is along the direction of the optical axis 3 (up and down in Figure 邛 and I). As shown in FIG. 2B, “the lens barrel 60 is inserted into the lens holder 30” and the cushion pad 40 will be compressed due to its elasticity. Therefore, the optical lens 50 will move toward the edge of the lens holder 30. On the contrary, Then, as H 2C does, the lens barrel is pulled out toward the lens holder, so the cushion pad 40 will expand due to its elasticity. Therefore, the optical lens 50 will go from the flange surface 33 of the lens holder 30 to the lens mirror. When the barrel 60 is moved, the focus position of the optical lens 50 can be adjusted by doing so. As for an optical lens unit having the focus position adjustment mechanism of the optical lens as described above, the structure of the lens barrel 60 as long as it can insert the optical lens 50 It's ok. And, to buffer The elastic deformation of 40 adjusts the focal position of the optical lens 50. Therefore, the number of parts of the focal position adjustment mechanism can be reduced, while simplifying the structure, and miniaturizing the optical lens unit and simplifying the combined process. The buffer pad 40 is provided between the 50 and the flange surface 33 of the lens holder 30, so that the friction debris generated in the spiral grooves 32 and 61 can be prevented from entering the space connecting the optical lens 50 and the image-forming surface. The buffer pad 40 is It is made of a material similar to the refractive index of the optical lens 50. Therefore, the stray light entering the flat edge is hardly reflected at the interface between the optical lens 50 and the cushion pad 40, and enters the cushion pad 40. The cushion pad 40 Since it is a black light absorber, the stray light incident on the cushion pad 40 is absorbed by this cushion pad 40, so that unwanted stray light can be prevented from entering the junction image surface 5. Furthermore, false signals such as flare can be reduced. Increase the contrast of the image on the image surface 5 (contrast) 〇12 This paper size applies the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) (Please read the precautions on the back before filling Page) · -1 line · 1221207 A7 B7 7733pif.doc / 009 V. Description of the invention (/ 〇) (Please read the precautions on the back before filling out this page) Then use Figure 3A to Figure 3C to explain the 2 embodiment of the optical lens unit. Figure 3A is a perspective view of each component of the optical lens unit that has a focus position adjustment mechanism for the optical lens. Figures 3B and 3C are sectional structural views of the optical lens unit after the components are combined As shown in the figure, the optical lens unit 20 includes a lens holder 30, a cushion pad 40, an optical lens 50, a lens barrel 60, and a lens cover 70. A part of the bottom surface of the lens holder 30 has an opening 31 and has a cylindrical shape. A projection 34 is provided on the outer peripheral wall. The cushion pad 40 has a refractive index similar to that of the optical lens 50, and is a black light absorber having a ring-like shape and having a sealing property and an elasticity. This cushion pad 40 is provided on the bottom surface (the flange surface 33) of the lens holder 30, and is tightly adhered to the flange surface 33 with its sealing property. -The linear optical lens 50 is provided on the flange surface 33 of the lens holder in such a manner that the flat edge portion thereof is in contact with the above-mentioned cushion pad 40. The central portion of the optical lens 50 and the opening 31 of the lens holder 30 are arranged on the optical axis. And the cushion pad 40 is also in close contact with the side of the optical lens 50. The lens barrel 60 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has a cylindrical shape, and a groove 64 ′ sandwiching the lens holder 30 is provided in the wall, and is provided at a position corresponding to the protrusion 34 of the lens holder 30. There is a cavity 63, and a protrusion 62 is provided at the open end in contact with the lens cover 70. This protrusion 62 is provided to determine the face direction of the lens cover 70 of the lens barrel 60. 'At least 3 or more lenses must be provided. 70 is a transparent cover ′ for protecting the optical lens 50 and the projection 62 of the lens barrel 60 is fitted. As described above, according to the optical lens unit 20 of this embodiment, the lens paper size of the lens is applicable to the Chinese National Standard (CNS) A4 specification (210 x 297 mm) 1221207 7733pif.doc / 009 A7 B7 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by a consumer cooperative. 5. Description of the invention The lens barrel 60 and the lens holder 30 are not specially fixed. In the optical lens unit 20, the groove 64 of the lens barrel 60 sandwiches the lens holder 30. The shaft 3 has a structure that can be freely floated, and the movement range of the lens barrel 60 is limited to the movement range of the protrusion 34 in the cavity 63. In the above-mentioned structure, the light emitted from the light source 4 enters the optical lens unit 20 through the lens cover 70, collects light with the optical lens 50, passes through the opening 31 of the lens holder 30, and then forms an image on the image surface 5 . Next, a method of adjusting the focal position of the optical lens 50 will be described with reference to Figs. 3B and 3C. FIG. 3B is a cross-sectional view of the optical lens unit when it is far from the focal position of the optical lens, and FIG. 3C is a cross-sectional view of the optical lens unit when it is near the focal position of the optical lens. Method of adjusting the focus position: Move the lens cover 70 along the direction of the optical axis 3 (upward and downward directions in FIGS. 3B and 3C), as shown in FIG. 3B, insert the lens cover 70 against the optical lens 50, Therefore, the lens barrel 60 will pay 33% of the lens 50 to the lens holder 30, and the cushion pad 40 will be compressed by this pressure due to its premature bow, so the optical lens 50 will go to the flange. Face 33 leaves leave. Conversely, as shown by tt 3C, when the lens cover 30 is far away from the optical lens 5G, the cushion 4G _ is elastic and expands, so the optical lens 1¾ 50 will move from the flange surface 33 to the optical lens cover 70. In this way, the focal position of the optical lens in the optical transmission unit can be adjusted. -As described above, the optical delay unit of the real axis is adjusted by applying pressure to the lens cover 70 to adjust the position of the lens barrel 60 in the lens holder 30 on the optical axis. And insert the lens _ 6G to _ seat 3Q or pull it out. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 (please read the note on the back? Matters before filling out this page). · Line. Ministry of Economic Affairs Printed by the Intellectual Property Bureau employee consumer cooperative 1221207 V. Description of the invention (/ 2) Control the amount of elastic deformation of the cushion pad 40 to adjust the focal distance of the optical lens 50. Therefore, 'the lens holder 30 and the lens barrel 6 There is no need to provide a spiral groove, because the spiral groove is not provided, the shapes of the lens holder 30 and the lens barrel 60 can be greatly simplified, and the optical lens unit can be miniaturized. Therefore, the manufacturing process of these components can be simplified and the manufacturing can be reduced. Cost. As a result, the manufacturing cost of the optical lens unit can be greatly reduced, and because the assembly process can be further simplified, the accuracy of the assembly can be improved, and the problem of friction debris caused by the spiral groove friction can be solved. Since the projection 62 has the same pressure as the projection 62, the load on the lens cover 70 and the lens barrel 60 in the lateral direction can be reduced. Therefore, if According to this embodiment, it is possible to realize an optical lens unit which is more excellent in productivity and reliability of the image on the image forming surface. Next, an optical lens unit according to a third embodiment of the present invention will be described with reference to FIGS. 4A to 4D. A spring is used in this embodiment in place of the cushion pad 40 used in the above-mentioned second embodiment. Fig. 4A is a perspective view of a part of a member constituting an optical lens unit according to this embodiment. Fig. 4B is a view shown in Fig. 4A A bird's-eye view of the lens holder in the optical lens unit. FIGS. 4C and 4D are sectional views of the optical lens unit. As shown in the figure, according to the optical lens unit 20 of this embodiment, a flange surface 33 provided on the lens holder 30 is used. The upper spring 41 replaces the cushion pad 40. The spring 41 is a part of the flange surface 33. The spring 41 is a flap-shaped spring protruding from the flange surface 33. The upper end surface of the spring 41 is connected to the optical lens. 50, and as described in the first and second embodiments, the pressure applied to the lens barrel 60 is adjusted to increase or decrease the 15 scale by the Chinese National Standard (CNS ) A4 size (210 X 297 mm) (please Read the note on the back? Please fill in this page for more information) --------- Order --------- 1 ▲ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221207 7 7 3 3 p 1 f · d oc / 0 〇9 A7 ----- B7_ V. Description of the invention (/ 3) The pressure on the spring 41 'can adjust the focal position of the optical lens 50 (see Fig. 4C, Fig. 4D). : According to the above description, if a spring 41 integrally formed with the lens holder 30 is used as the cushion pad 40 according to this embodiment, the number of combined parts of the optical lens unit can be reduced, the combination process can be simplified, and the cost can be reduced. Moreover, this embodiment replaces the cushion pad 40 in the second embodiment with a spring 41. Of course, it is also applicable to the structure of the first embodiment. However, if the problem of friction debris generated by the spiral rotation mechanism is considered, it is best to apply it to No spiral structure is used (as in the second embodiment). Next, an optical lens unit according to a fourth embodiment of the present invention will be described with reference to Figs. 5A to 5C. This embodiment relates to a structure for controlling the pressure applied to the cushion pad 40 in an optical lens unit having a focus position adjustment mechanism without using the spiral rotation described in the second embodiment. Fig. 5A is a perspective view of each member constituting the optical lens unit. 5B and 5C are cross-sectional configuration diagrams of the optical lens unit after the components are combined. In this embodiment, a focus adjustment guide (sluie) plate is further provided in the second embodiment, and the lens cover and the focus adjustment guide are used as a lens focus position adjustment mechanism. As shown in the figure, the cushion pad 40 is interposed between the flange surface 33 of the lens holder 30 and the optical lens 50, and the edge of the optical lens 50 is sandwiched between the lens barrel 60 and the flange surface 33 of the lens holder 30. . A lens cap 70 is provided on the lens barrel 60, and the lens cap 70 and the lens barrel 60 are fitted with projections 62. In the lens cover 70, the surface 71 of the lens barrel 60 that is in contact with the lens 71 has a perpendicular line parallel to the optical axis 3 of the optical lens 50. On the other hand, the opposite side of the paper 72, 16 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the precautions on the back before filling this page) ..-Line · 1221207 7733pif .d〇c / 〇09 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (/ 4) The vertical line and the optical axis 3 are inclined at a predetermined angle. On this lens cover 70, a focus adjustment guide plate 73 is provided on one surface 72 of the lens cover 70. The surface adjustment surface of the focus adjustment guide 73 and the lens cover 70 is also provided on the surface 72 of the lens cover 70. 72 —The kind of tilt. In the above configuration, 'light emitted from the light source 4 is incident on the optical lens unit 20 through the focus adjustment guide 73 and the lens cover 70'. Then, the incident light 'is collected by the optical lens 50 through the opening 31 of the lens holder 30, and an image is formed on the image forming surface 5. Next, a method of adjusting the focal position of the optical lens 50 will be described with reference to FIGS. 5B and 5C. Fig. 5B is a sectional view of the optical lens unit when it is far from the focal position of the optical lens. Fig. 5C is a sectional view of the optical lens unit when it is near the focal position of the optical lens. Adjustment method of the focus position and focus adjustment guide 73 is performed by moving in parallel in a direction orthogonal to the optical axis 3 (left-right direction in FIGS. 5B and 5C). On the surface 74 in contact with the lens cover 70, a tilted focus adjustment guide 73 is moved in parallel, and a contact surface 72 in contact with the focus adjustment guide 73 generates pressure on the lens cover 70 having the same tilt. Specifically, in FIG. 5A, if the focus adjustment guide 73 is moved in parallel to the right direction, downward pressure on the lens cover 70 as shown in FIG. 5B will be generated. As a result, the lens barrel 60 will The optical lens 50 applies pressure to the flange surface 33 of the lens holder 30. Due to this pressure, the cushion pad 40 is compressed due to its elasticity. Conversely, as shown in FIG. 5C, when the focus adjustment guide 73 is moved to the left in a flat shape, the pressure applied to the lens cover 70 is reduced, and the lens cover 70 is moved upward. Therefore, the cushion pad 40 may Elasticity and expansion, as a result, the optical lens 50 will apply the Zhongguanjia Standard (CNS) A4 specification ⑽X 297 public love from the 17-sheet paper size) '" " ---- (Please read the precautions on the back before filling (This page) Order _ ·-Line · 1221207 A7 B7 7733pif.doc / 009 V. Description of the invention (/ s) (Please read the note on the back first? Matters before filling out this page) The flange surface 33 is toward the lens cover 70 side By moving and doing so, the position of the optical lens 50 can be adjusted along the direction of the optical axis 3 by elastically deforming the cushion pad 40 by the force applied to the lens cover 70. According to the above-mentioned structure and the method of adjusting the focus position, the focus position is adjusted by the parallel movement of the focus adjustment guide plate 73 in the direction orthogonal to the optical axis 3. Therefore, the inclination angles of the faces 72 and 74 are reduced, so the focus of the optical lens can be adjusted. Make finer adjustments to the position. In addition, in this embodiment, a window through which light passes is provided on the focus adjustment guide 73, but if the focus adjustment guide 73 is a light-transmitting material, it is not necessary to provide this window. 5A to 5C show the structure of the optical lens unit using the cushion pad 40, but as shown in the cross-sectional view of the optical lens unit shown in FIG. 5D, the structure using the spring 41 is described in the third embodiment. The occasion is also applicable to this embodiment. Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Next, an optical lens unit according to a fifth embodiment of the present invention will be described with reference to Figs. 6A to 6C. This embodiment is also related to the fourth embodiment described above, and relates to a technique for controlling the pressure applied to the cushion pad 40 in an optical lens having a focus position adjusting mechanism without using a spiral rotation. Fig. 6A is a perspective view of each component constituting the optical lens unit, and Figs. 6B and 6C are sectional views of the optical lens unit after the components are combined. In this embodiment, the operation of pressing in the lateral direction as in the fourth embodiment is not changed, but the rotation operation is converted into pressure. As shown in the figure, a part of the bottom surface of the lens holder 30 has an opening 31 in a cylindrical shape, and there are three openings formed on the upper end along the circumferential direction. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221207 V. Description of the invention (/ 6) Inclined 34.1 ~ 34.3. The cushion pad 40 has a refractive index similar to that of the optical lens 50, and it is a black light absorber having a sealing property and elasticity, and has a ring shape. The buffer pad 40 is provided on the bottom surface (the flange surface 33) of the lens holder 30, and is tightly attached to the flange 33 with its sealing property. The flat edge portion of the optical lens 50 is in contact with the aforementioned cushion pad 40 and is provided on the flange surface 33 of the lens holder 30. The central portion of the optical lens 50 and the opening 31 of the lens holder 30 are arranged at the position of the optical axis 3. Also, the buffer pad is in close contact with the edge of the optical lens 50. The lens barrel 60 has a cylindrical shape and has at least two outer peripheral portions (a first outer peripheral portion 65 and a second outer peripheral portion 66). The open end of the lower surface of the first outer peripheral portion 65 is continuous with the edge of the optical lens 50, and has an outer periphery equivalent to the inner periphery of the lens holder 30. The lower surface of the second outer peripheral portion 66 is continuous with the upper end of the lens holder 30. The second outer peripheral portion 66 is continuous with the upper end of the lens holder 30, and is provided with three tilts 63.1 to 63.3 along the circumferential direction (in FIG. 6A, only the tilts 63.1 and 63.2 are shown due to the relationship between the drawings), and The inclination of the lens holder 30 corresponds to 34.1 to 34.3. In addition, an optical axis 3 is provided in a cylindrical cavity through which the lens barrel 60 is inserted, so that the lens barrel 60 and the cushion pad 40 on the flange surface 33 of the lens holder 30 sandwich, fix, and hold the optical lens. 50 of the peripheral part. In the above-mentioned structure, the incident light is collected by the optical lens 50, passes through the opening 31 of the lens holder 30, and then forms an image on the image forming surface 5. Next, a method of adjusting the focal position of the optical lens 50 will be described with reference to Figs. 6B and 6C. Figure 6B is the focus position far from the optical lens 19 (Please read the precautions on the back before filling this page) -laj-· line-This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 1221207 A7 B7 Five_I____I_ Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs_7 733pif.d〇c / 〇〇9 In the description of the invention (丨 7), a sectional view of the optical lens unit. 6 (: is a cross-sectional view of the optical lens unit when it is close to the focal position of the optical lens. The method of adjusting the focal position: the second outer periphery 邰 66 of the lens barrel 60 and the open end of the upper surface of the lens holder 30 are connected If it is rotated in the circumferential direction, the lens barrel 60 will therefore move the lens holder 30 along the optical axis 3, and the focal position of the optical lens 50 in FIG. 6B will be far away. For example, the inclination 34 of the lens holder 30 · Each of 1 ~ 34 · 3 is fully connected to the inclination 63.1 ~ 63.3 of the lens barrel 60. Therefore, the lens barrel 60 will be inserted into the lens holder 30, so the cushion pad 40 will be compressed due to its elasticity. Therefore, the optical lens 50 moves to the flange surface 33 side of the lens holder 30, as shown in Fig. 6B. The state where the lens barrel 60 is rotated to the left is shown in Fig. 6C, because it is rotated to the left Therefore, the areas where the inclination 34 · 1 ~ 34 · 3 of the lens holder 30 and the inclination 63.1 ~ 63.3 of the lens barrel 60 become smaller will be smaller. 'The lens barrel 60 is pulled out of the lens holder 30, and as a result, the cushion pad 40 will Due to its elasticity, the optical lens 50 moves from the flange of the lens holder 3 (3 The surface 33 moves toward the lens barrel 60 side. In this way, the focal position of the optical lens in the optical lens unit can be adjusted. Even in the above-mentioned method, the pressure on the cushion pad 40 can be controlled. In addition, as shown in FIG. 6D Of course, it is also applicable to an optical lens unit using a spring 41 instead of the cushion pad 40. Next, an optical lens unit according to a sixth embodiment of the present invention will be described with reference to FIGS. 7A to 7C. FIG. The perspective view of each component of the optical lens unit of the focus position adjustment mechanism, and Figs. 7B and 7C are sectional views of the optical lens unit after the combination of the various components. 20 This paper size applies the Chinese National Standard (CNS) A4 specification (21〇 X 297 public love) (Please read the precautions on the back before filling out this page) Order --------- line · 1221207 V. Description of the invention (/ ί) This embodiment is intended to explain that the first section is not used. The optical lens unit of the fifth embodiment to the elastic member (the cushion pad 40, the spring 41, etc.), and without using the screw-type rotation mechanism, the focal position of the optical lens can be adjusted. As shown in the figure, the optical lens unit 20 has a lens holder 30, an optical lens 50, and a lens barrel 60. A part of the bottom surface 33 (flange surface 33) of the lens holder 30 has a cylindrical portion through which the optical axis 3 passes, and has an opening 31, and further along the bottom surface. The circumferential direction has three inclination 35.1 to 35.3. The optical lens 50 has an edge and is provided on the flange surface 33 in the cylinder of the lens holder 30. In this optical lens, the edge is in contact with the flange surface 33. Three inclination 51.1 to 5L3 are provided along the circumferential direction, corresponding to the inclination 35.1 to 35.3 of the lens holder 30, and on the surface that is not in contact with the flange surface 33, there are three 3 with approximately equal intervals. In addition, the inclination 51.1 to 51.3 of the optical lens 50 are respectively continuous with the inclination 35.1 to 35.3 of the lens holder 30, and the optical lens 50 is installed in the lens holder 30. The optical lens 60 has a penetrating opening in a region where the optical axis exists, and is fitted into the protrusions 51.1 to 51.3 of the optical lens 50. In the above-mentioned structure, the light emitted from the light source 4 is collected by the optical lens 50, passes through the opening 31 of the lens holder 30, and then forms an image on the image forming surface 5. Next, a method of adjusting the focal position of the optical lens 50 will be described with reference to Figs. 7B and 7C. Fig. 7B is a sectional view of the optical lens unit when it is far from the focal position of the optical lens. Fig. 7C is a sectional view of the optical lens unit when it is near the focal point position of the optical lens. This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) (Please read the note on the back? Matters before filling out this page) Words Γ Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs Consumer Cooperatives 1221207 7 3 3p: doc / 009 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the Invention (/ 7) The lens barrel 60 is rotated in its surrounding direction to adjust the focus position. The lens barrel 60 is rotated, and because it fits into the protrusions 52.1 to 52.3, the optical lens 50 also rotates in the lens holder 30. Therefore, the optical lens 50 is connected to the flange surface 33 so as to be along the circumferential direction. The rotation causes the optical lens 50 to move toward the lens holder 30 in the direction of the optical axis 3. FIG. 7B shows a state far from the focal position. For example, the inclination 51.1 to 51.3 of the optical lens 50 is fully connected to the inclination 35.1 to 35.3 of the lens holder 30, so that the optical lens 50 will be inserted into the lens holder 30 as shown in FIG. 7B. The state of turning the lens barrel 60 to the right is as shown in FIG. 7C. Since the lens barrel 60 is turned to the right, the areas where the inclination 35.1 to 35.3 of the lens holder 30 and the inclination 51.1 to 51.3 of the optical lens 50 are smaller, and the optical The lens 50 will be pulled out from the lens holder 30. In this way, the focal position of the optical lens in the optical lens unit can be adjusted. According to the above-mentioned structure and method, since no elastic member is used, the structure of the optical lens unit can be further simplified. Therefore, the manufacturing cost of the optical lens unit can be reduced, and the accuracy of assembly can be improved. Next, an optical lens unit according to a seventh embodiment of the present invention will be described with reference to Figs. A and B. Figs. Fig. 8A is a perspective view of each member of an optical lens unit constituting a focal position adjustment mechanism having an optical lens. Fig. 8B is a perspective view of a part constituting the optical lens unit member when Fig. 8A is viewed from a different angle. Depending on the application, the optical lens unit may use a cut-off wavelength range or a qualified color filter. In this embodiment, the color filter is placed in the optical lens unit 22 in the sixth embodiment described above (please read the precautions on the back before filling this page) — p Γ Good paper size applies Chinese national standards (CNS) A4 specification (210 X 297 mm) 1221207 7733ρί · ^ οα / 〇〇9 V. Description of the invention (2〇). As shown in the figure, a part of the bottom surface 33 of the lens holder 30 passes through the optical axis 3 and has a cylindrical portion with an opening (not shown). A color filter plate 36 is provided on the bottom surface (flange surface 33) to cover the opening. 'In addition, the areas not used when the color filter plate 36 is arranged on the flange surface 33, that is, the inclination 35.1 to 35.4 are provided at four positions on the flange surface 33 along the circumferential direction. The sides of the optical lens 50 are provided with four tilts corresponding to the tilts 35.1 to 35 · 4 of the lens holder 30 (in FIGS. 8A and 8B, only the tilts 51.1 to 51 · 3 are shown due to the relationship of the drawings). As described above, the effects of installing four tilts 35.1 to 35.4 in the useless area of the flange surface 33 are as follows. It is very common to use a color filter in an optical lens unit. 'However, general color filters are made square. Therefore, it is best to use a square color filter in the optical lens unit if considering the cost. This is because if a circular color filter is used to fit the flange surface 33 of the lens holder 30, a special color filter for an optical lens must be manufactured, which increases the cost. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page)-Line · And the color filter should not be located in the area between the lens holder 30 and the junction image surface 5, because the filter The end portion of the swatch can cause dust. Therefore, the color filter must be placed outside the space where the image surface exists, in other words, it must be placed outside the space where the photo sensor is present. Therefore, in this embodiment, a square color filter plate 36 is first provided on the flange surface 33, and then an inclination is provided in an area where the color filter plate 36 and the flange surface 33 do not overlap and are not used. There must be four, and as a result, the above two requirements can be met. 23 This paper size applies the Chinese National Standard (CNS) A4 specification (21〇X 297 public love) 1221207 V. Description of the invention (2 () Moreover, this embodiment always sets the tilt according to the shape of the color filter. Therefore, using The square color filter described above, it is the best embodiment to set 4 tilts in 4 unused areas, but it is not limited to this case. As explained in the first to seventh embodiments, According to the present invention, since the number of parts constituting the focus position adjustment mechanism can be reduced, the assembling process can be simplified and the size of the optical lens unit can be reduced. That is, as described in the first embodiment, since a spiral rotation mechanism is used, The pressure applied to the cushion pad 40 adjusts the focus position, so the number of parts can be reduced. Furthermore, the space where the spiral is installed can be separated from the space existing on the image plane, so the reliability of the image can be improved, and false signals such as light spots can be suppressed. The occurrence of the image will increase the contrast of the image. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) • Line · Also, as in the second The description made in the embodiment, for example, by inserting the lens barrel 60 with the lens cover 70, the spiral rotation mechanism can be omitted, and because this spiral rotation mechanism can be omitted, the manufacturing cost of the optical lens unit can be greatly reduced. In addition to the high cost, forming a spiral by means of mold forming is also technically difficult. In addition, if the screw-type rotating mechanism can be omitted, not only the assembly process can be simplified, but also the characteristic error generated during assembly can be suppressed, and It can solve the problem of spiral friction debris. In this way, the focus position adjustment mechanism omitting the spiral can be realized, which is of great help to the manufacture of optical lenses and the ability to adjust the focus position of the optical lens unit. Furthermore, As explained in the third embodiment, a spring 41 may be used instead of the cushion pad 40. If the spring 41 and the flange 33 are integrally formed, 24 paper standards are applicable to the national standard (CNS) A4 (21〇X 297 mm) --- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221207 V. Description of the invention (2) Can be further reduced The number of parts. What replaces the cushion pad 40 is only required to be elastic, and is not particularly limited. The material of the elastic member is further explained here. The elastic member is preferably used as described above. An elastic member of a black light absorber that has the same refractive index as the optical lens unit. This is to prevent adverse effects such as stray light when the image is formed on the image surface. The materials of the elastic member include rubber and resin. , Spring, etc., and the elastic deformation ratio of the elastic member to the lens barrel 60 is preferably 1: 10 to 1: 100 or more, that is, it is best to use a material with an elastic deformation rate of 1/10 to 1/100 or less. In this case, when the lens barrel 60 is moved in order to adjust the focal position, the elastic member can substantially only be elastically deformed. Therefore, the elastic deformation of the optical lens 50 can be suppressed to a minimum, and the image formation of the optical lens unit can be improved. Reliability. In addition, in the technology of fixing optical parts, in the mounting of optical parts, a spring-like ring with elasticity is sometimes used. Such a ring is mainly used for a flat color filter which is not important in its fixed position. . However, the purpose is to alleviate the mounting pressure on the color filter mounting parts, and it is not a problem to adjust the focal position of the optical lens. Moreover, the cushion pad in this embodiment is different from the spring-shaped mounting ring used in the above-mentioned flat color filter, and has a function of surrounding the space between the optical lens and the image plane to isolate it from the outside. At the same time, equal pressure is applied to the peripheral portion of the optical lens, so the focus adjustment function of the optical lens unit can be improved, and the reliability of the image formation of the optical lens unit can be improved. As described in the fourth and fifth embodiments, the inclination provided in the lens cover 70 and the focus adjustment guide 73 or the lens holders 30 and 25 are provided. The paper size is applicable to the Chinese National Standard (CNS) A4. Specifications (210 X 297) (Please read the notes on the back before filling in this page) ------- Order --------- I It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1221207 V. Description of the invention CZ3) The inclination of the lens barrel 60 transforms the parallel movement or the rotation movement into the pressure in the lens holder 30 of the lens barrel 60, which can finely adjust the focal distance. The lens diameter of image sensors used in mobile phones and other mobile phones is shrinking year by year. It is not satisfactory to directly load optical lenses used in such a small optical system and cause damage to the optical lenses. However, as described in the above-mentioned fourth and fifth embodiments, the optical lens 50 is not directly pressed, but the sliding in the lateral direction of the focus adjustment guide or the rotation of the lens barrel 60 is converted into pressure. , Can reduce the load on the optical lens. In addition, the "focus position adjustment" mentioned in the detailed description is only for correcting the characteristic error of the optical lens, and is not a thing used for focus adjustment. In addition, the lens used in the above-mentioned image sensor has the advantage of having a short focal distance and a short amount of movement. Therefore, it is sufficient that the focus position is adjusted within the elastic deformation range of the elastic member (the cushion pad 40, the spring 41, etc.). This adjustment range is about several μm to several tens μm. As mentioned earlier, it is not common to use a complex lens group for a tiny optical system used in a portable device. Generally, a monocular lens is used. Therefore, in the above-mentioned first to seventh embodiments, the optical lens unit having only one optical lens has been described. However, an image sensor used in a portable device may use an optical lens group composed of a plurality of optical lenses. Such an optical lens unit is also applicable to the present invention. This example is shown in FIG. 9A. As shown in the figure, the two optical lenses 53, 54 are held by the holding portion 80, and the two optical lenses 53, 54 operate together. However, if the optical lens is further described, the present invention is naturally applicable even in the case of using an edgeless optical lens. 26 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ~ (Please read the precautions on the back before filling this page)
訂---------線U 1221207 五 經濟部智慧財產局員工消費合作社印製 7 7 3 3P1f.cloc/〇〇9 β? ___________ 、發明說明（之斗） 圖9B爲構成使用沒邊之光學透鏡之光學透鏡單元各構件 的斜視圖，圖9C爲各構件組合後光學透鏡單元的斷面構 成圖。如圖所示，保持構件90夾住、保持著光學透鏡50 的周邊部，且此保持構件90與緩衝墊40及透鏡鏡筒60 接續，因此，即使是沒邊的透鏡也可適用本發明。而且在 光學透鏡數目少的光學透鏡單元中，本發明的效果也可充 分顯現出來。 在上述第6、7實施例中，將第5實施例中所說明的 傾斜設在透鏡座30之凸緣面33與光學透鏡50上’於是， 藉著凸緣面33與光學透鏡50的轉動，就可直接調整光學 透鏡50的焦點位置，因此，不需要設置彈性構件，並且 可進一步減少構成光學透鏡的零件數。而且在裝進濾色板 的場合，也可使用一般所使用的正方形濾色板。 如上所述，本發明的主旨，首先是以彈性構件的彈 性變形來調整光學透鏡的位置。而且以將透鏡筒直接塞入 透鏡座內的方式以省略螺旋式轉動機構。甚至進一步廢除 彈性構件，利用設置在與透鏡鏡筒及光學透鏡之接續面上 的傾斜，而非彈性構件的彈性變形，利用上述的方法，可 簡化光學透鏡單元的結構，並實現光學透鏡單元的小型 化。 另外，推壓彈性構件的方法，並不限於上述第1至第 5實施例中所說明的方法。而且在第6實施例中，傾斜51.1 〜51.3與光學透鏡是一體的，但將傾斜的部分當做另一構 件構成光學透鏡單元也沒關係，總之，它可以有各種不同 27 本紙張尺度適用中國國家標準（CNS)A4規格（21〇 X 297公爱） (請先閱讀背面之注意事項再填寫本頁) 訂： 丨線. 1221207 五、發明說明（2夕） 的變形。 雖然本發明已以實施例揭露如上，但其並非用以限 定本發明，任何熟習此技藝者，在不脫離本發明之精神與 範圍內，當可作各種之變動與潤飾。 (請先閱讀背面之注意事項再填寫本頁)Order --------- line U 1221207 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 7 7 3 3P1f.cloc / 〇〇9 β? ___________ 、 Invention Explanation (Battle) Figure 9B An oblique view of each component of the optical lens unit of the side optical lens. FIG. 9C is a sectional configuration diagram of the optical lens unit after the components are combined. As shown in the figure, the holding member 90 sandwiches and holds the peripheral portion of the optical lens 50, and the holding member 90 is connected to the cushion pad 40 and the lens barrel 60. Therefore, the present invention can be applied to even an edgeless lens. Further, in an optical lens unit having a small number of optical lenses, the effects of the present invention can be fully exhibited. In the above-mentioned sixth and seventh embodiments, the inclination described in the fifth embodiment is provided on the flange surface 33 and the optical lens 50 of the lens holder 30. Therefore, by the rotation of the flange surface 33 and the optical lens 50, Since the focal position of the optical lens 50 can be adjusted directly, there is no need to provide an elastic member, and the number of parts constituting the optical lens can be further reduced. In addition, when a color filter is incorporated, a square color filter generally used may be used. As described above, the gist of the present invention is to first adjust the position of the optical lens by elastic deformation of the elastic member. In addition, the screw-type rotation mechanism is omitted so that the lens barrel is directly inserted into the lens holder. Even further abolish the elastic member, and use the inclination provided on the connection surface with the lens barrel and the optical lens instead of the elastic deformation of the elastic member. Using the method described above, the structure of the optical lens unit can be simplified and the optical lens unit can be realized. miniaturization. The method of pressing the elastic member is not limited to the method described in the first to fifth embodiments. Moreover, in the sixth embodiment, the tilts 51.1 to 51.3 are integrated with the optical lens, but it does not matter that the tilted portion is used as another component to form the optical lens unit. In short, it can have various differences. (CNS) A4 specification (21〇X 297 public love) (Please read the precautions on the back before filling out this page) Order: 丨 line. 1221207 V. Distortion of the invention description (2nd eve). Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various changes and decorations without departing from the spirit and scope of the present invention. (Please read the notes on the back before filling this page)
•P . •線. 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）• P. • Line. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is sized for China National Standard (CNS) A4 (210 X 297 mm)