1364619 _ 101年,02月 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明係關於一種數位相機模組，尤其係關於一種於不 同溫度環境下性能可靠之鏡頭模組及應用其之數位相機 C先前技術3 [0002] 數位相機係結合光學、精密機械及電子科技之新型產品 ，因其拍攝方便，且拍後可編輯，因而成為人們戶外旅 行必備之電子裝置。 [0003] 因數仅相機需於戶外環境中使用，尤其應用於較冷或較 熱環境中之數位相機，溫度對數位相機之影響較大，從 而影響成像性能之可靠性，故，數位相機模組於各種溫 度情况下保持穩定性能是衡量數位相機性能之重要指標 〇 [0004] [0005] [0006] [0007] 習知之數位相機模組之鏡片之間設有光圈片及間隔環， 該光圈片及間隔環之材料主要為歸材料或塗有黑色賓 之鋼或H銅材料，塑膠及銅材料與玻璃有不同之熱膨 脹係數’故該數位相機模組於不同溫度環境下，將會產 生變开） #χΑ —y，夾而導致與光圈片、間隔環相鄰之鏡片傾斜及 彎 嚴重影響該數位相機模組之成像質量。 【發明内容】 有審於此’有必要提供_種性能可靠之鏡頭模組； 光圈 另’有必要提供-雜能可#之數位相機模組。 一種鏡頭模組，其包括：—鏡筒，—第一鏡片 09413793^單编號 A0101 第4頁/共14頁 1013073619-0 1.364619 101·年.02月24日梭正替換頁 片，該鏡筒包括一收容部，該收容部開有一容置孔；其 中，該第一鏡片及該光圈片分別容置於該鏡筒之容置孔 内，該光圈片相鄰該第一鏡片設置，該光圈片之材料為 科瓦合金。 [0008] 一種數位相機模組，包括一鏡頭模組及一鏡座，該鏡頭 模組包括：一鏡筒，該鏡筒包括一收容部，該收容部開 有一容置孔；一第一鏡片，一光圈片；該鏡座與該鏡頭 模組之鏡筒相對固定，該鏡座開有一開孔，其包括一影 像感測元件，該影像感測元件固定於該鏡座之開孔内； 其中，該第一鏡片及該光圈片分別容置於該鏡筒之容置 孔内，該光圈片相鄰該第一鏡片設置，該光圈片之材料 為科瓦合金。 [0009] 相較習知技術，該鏡頭模組之光圈片採用科瓦合金，該 科瓦合金於溫度變化時，與鏡片之玻璃具有相似之熱膨 脹係數，故，該鏡頭模塊内之鏡片不易傾斜及變形，使 成像性能穩定。 [0010] 具有該鏡頭模組之數位相機模組於溫度變化時，該第一 鏡片與該光圈相對位置幾乎不變，故該鏡頭模組内之鏡 片不會傾斜或彎曲，成像穩定。 【實施方式】 [0011] 本發明優選實施方式之數位相機模組，請參見第一圖， 該數位相機模組100包括一鏡筒10、一第一鏡片22、一第 二鏡片24、一光圈片30、一間隔環40、一濾光片50、一 鏡座60、一基座70、一影像感測元件80及一透光板90。 09413793# 單編號 A〇101 第5頁/共14頁 1013073619-0 1364619 _ 101年.02月24日修正替换頁 [0012] 該鏡筒10大致為柱狀，包括一端部12及一與其垂直連接 之收容部14。該端部12大致為圓盤狀，該端部12之中部 開有一開孔124，該開孔124大致為倒圓錐形，可避免雜 散光進入鏡頭内《該收容部14大致為圓棱狀，其外徑小 於該端部12之外徑。該收容部14中部開有一容置孔142， 該容置孔142為圓柱形，其與該端部12之開孔124相貫通 。該收容部14之外週壁設有外螺紋144。 [0013] 該第一鏡片22、第二鏡片24分別係一非球面玻璃透鏡， s玄第一鏡片22包括一透鏡部222及一圍繞形成於透鏡部 222外週緣之安裝部224，該第二鏡片242亦包括一透鏡 部242及一圍繞形成妗透鏡部242外週緣之安裝部244。 [0014] 該光圈片30為一固定光圈，該光圈片30之厚度範圍為 30-70微米，優選範圍為40-60微米，本發明光圈片3〇厚 度優選值為50微米。該光圈片30之内直經範圍值為 0.3-0.8毫米’優選範圍為0.4-0· 6毫米，本發明優選值 為0. 5毫米》 [0015] 該間隔環40用以調整元件之間距，該間隔環4〇之中部具 一間隔環孔402，其大致為倒圓錐形，可避免雜散光進入 影像感測元件80 ’影響成像質量。 [0016] 該光圈片3〇及間隔環40之材料採用塗有黑色塗料之科瓦 合金（Kovar alloy)，該科瓦合金與玻璃具有相似之熱 膨脹係數，故於溫度變化時，其可與第一鏡片22及第二 鏡片24有相似之熱膨脹，從而避免該第一鏡片22及第二 鏡片24傾斜或彎曲。另，該科瓦合金於溫度變化時長度 〇94丨3793卢單编號Α0101 第6頁/共14頁 1013073619-0 1364619 101年.02月24日梭正替換頁 變化很小，故可保持尺寸之穩定性，使光圈片30及間隔 環40與鏡筒10之内週壁貼合較緊密，從而阻止濕氣、粘 膠蒸氣及有機蒸氣污染第一鏡片22及第二鏡片24表面。 [0017] 本較佳實施方式之光圈片30及間隔環40之科瓦合金材料 包括：鐵（Fe)52%-53%，鎳（Ni)29%，鈷（Co)17%，其 他鎂（Mg)、錳（Μη)、矽（Si)、碳（C)、鋁（Ai)、锆（Zr) 、鈦（Ti)、磷（P)、硫（S)—種或幾種任意組合範圍於 U-2%。具體成分如下：鐵52. 79%，鎳29%，鈷17%，鎂 0. 1%、錳0. 5%、矽0. 2%、碳0. 0 6%、鋁0. 1%、锆0. 1% 、鈦0. U、磷0. 02 5%、硫0. 025%。該科瓦合金之光圈 片30及間隔環40可承受相對濕度約5%-90%，其溫度範圍 可應用於零下40度到零上85度之間。該科瓦合金之拉伸 強度為67000磅/平方英吋，屈服強度為43000磅/平方英 口于〇 [0018] 該濾光片50之至少一表面鍍覆一層紅外截止濾膜 (IR-cut Coating)，以遽除來自於被攝物反射光線中 之紅外線，從而提高成像品質。 [0019] 該鏡座60為中空圓台狀，該鏡座60開有一通孔62，該通 孔62之孔徑與鏡筒10之收容部14外徑大致相當。該通孔 62之週壁上由一端開有螺紋624，其與鏡筒10之收容部 14之外螺紋14 4相螺紋配合。 [0020] 該基座70為一長方型腔體，用以容置影像感測元件80。 [0021] 該影像感測元件8 0通常可為電荷耦合器（C h a r g e Coupled Device，下稱CCD)，或者補充性氧化金屬半 0941379#單編號 A〇101 第7頁/共14頁 1013073619-0 1364619 [1〇1年.02月24日修正脊 導體（Complementary Meta卜Oxide Semiconductor-，下稱CMOS)。該彩像感測元件8〇固定於基座70内，其 用以將影像之光訊號轉變為電訊號。 [0022] 透光板90蓋於影傢感測元件8〇上，以保護影像感測元件 80，避免灰塵水#染該影像㈣元件80 ° [0023] 組裝時，先將第〆鏡片22、光圈片3〇、第二鏡片24、間 隔環40依序置入鏡筒10收容部14之谷置孔142内，再於 間隔環40相鄰之鏡筒1〇之容置孔142之週壁上塗上粘膠， 之後將濾光片50壓入鏡筒内真一端抵持於間隔環40上， 再藉由紫外光加以照射，從而將上述元件緊固於一體。 [0024] 將影像感測元件80固定於基座70内’再將透光板90蓋覆 於基座70之上，以保護影像感測元件8〇。再將鏡座60之 通孔62對準鏡筒10，將鏡筒之外螺紋144旋轉配合於 鏡座60之内螺紋624，經過調焦後’再藉由點膠將鏡筒 與鏡座60相對固定，至此，該數位相機模組組裝完畢。 [0025] 工作時，因該數位相機模組100之光圈片30、間隔環4〇採 用科瓦合金材料’故該光圈片30及該間隔環4〇與第一鏡 片22及第二鏡片24具有相似之熱膨脹係數，於溫度變化 時，該第一鏡片22及第二鏡片24與光圈片3〇及間隔環4〇 之相對位置不發生改變，故可防止數位相機模組1〇〇内之 元件因溫度變化，而使第一鏡片22及第二鏡片24發生傾 斜彎曲，從而保證較好之成像品質。 _]綜上所述，本發明符合發明專利要#，爰依法提出專利 申請。惟’以上所述者僅為本發明之較佳實施例，本發 09413793#單编號A01〇l 第8頁/共14頁 1013073619-0 1364619 101年.02月24日梭正替換頁 明之範圍並不以上述實施例為限，舉凡熟習本案技藝之 人士援依本發明之精神所作之等效修飾或變化，皆應涵 蓋於以下申請專利範圍内。 【圖式簡單說明】 [0027] 第一圖係本發明優選實施方式數位相機模組之剖示圖。 【主要元件符號說明】 [0028] 數位相機模組： 100 [0029] 鏡筒：10 [0030] 端部：12 [0031] 收容部： 14 [0032] 開孔：124 [0033] 容置孔： 142 [0034] 外螺紋： 144 [0035] 第一鏡片 ：22 [0036] 第二鏡片 ：24 [0037] 透鏡部： 222、 242 [0038] 安裝部： 224、 244 [0039] 光圈片： 30 [0040] 間隔環： 40 [0041] 間隔環孔 ：402 [0042] 濾光片： 50 〇94m9#單編號删1 第9頁/共14頁 1013073619-0 1364619 [0043] 鏡座：60 [0044] 通孔：62 [0045] 外螺紋：624 [0046] 基座：70 [0047] 影像感測元件：80 [0048] 透光板：90 094137^1 賊 A〇101 第10頁/共14頁 101年.02月24日梭正替换頁 1013073619-01364619 _ 101 years, February 6th, invention description: [Technical field] [0001] The present invention relates to a digital camera module, and more particularly to a lens module with reliable performance under different temperature environments and application thereof Digital Camera C Prior Art 3 [0002] Digital Camera is a new product combining optical, precision machinery and electronic technology. Because it is easy to shoot and editable after shooting, it has become an essential electronic device for outdoor travel. [0003] Factor only needs to be used in outdoor environments, especially for digital cameras in colder or hotter environments. Temperature has a greater impact on digital cameras, which affects the reliability of imaging performance. Therefore, digital camera modules Maintaining stability performance under various temperature conditions is an important indicator for measuring the performance of a digital camera. [0004] [0006] [0007] A lens assembly and a spacer ring are provided between the lenses of the conventional digital camera module. And the material of the spacer ring is mainly returned to the material or coated with black steel or H copper material, and the plastic and copper materials have different thermal expansion coefficients from the glass. Therefore, the digital camera module will be opened under different temperature environments. ) #χΑ -y, the tilt and bending of the lens adjacent to the aperture plate and the spacer ring seriously affect the imaging quality of the digital camera module. [Summary of the Invention] It is necessary to provide a reliable lens module for the performance of the lens; the aperture is also required to provide a digital camera module. A lens module comprising: a lens barrel, a first lens 09413793, a single number A0101, a fourth page, a total of 14 pages, 1013073619-0, 1.364619, a film, a replacement page, the lens barrel The accommodating portion includes a receiving hole, wherein the first lens and the aperture plate are respectively received in the receiving holes of the lens barrel, and the aperture plate is disposed adjacent to the first lens, the aperture The material of the sheet is Kova. [0008] A digital camera module includes a lens module and a lens holder, the lens module includes: a lens barrel, the lens barrel includes a receiving portion, the receiving portion has a receiving hole; a first lens An aperture plate; the lens holder is opposite to the lens barrel of the lens module, the lens holder has an opening, and the image sensor comprises an image sensing component, and the image sensing component is fixed in the opening of the lens holder; The first lens and the aperture plate are respectively received in the receiving holes of the lens barrel, and the aperture plate is disposed adjacent to the first lens, and the material of the aperture plate is Kovar. [0009] Compared with the prior art, the aperture plate of the lens module adopts a Covar alloy, and the Covar alloy has a thermal expansion coefficient similar to that of the glass of the lens when the temperature changes, so that the lens in the lens module is not easy to tilt. And deformation to stabilize imaging performance. [0010] When the temperature of the digital camera module having the lens module is changed, the relative position of the first lens and the aperture is almost unchanged, so that the lens in the lens module is not inclined or curved, and the imaging is stable. [Embodiment] [0011] In the preferred embodiment of the digital camera module, please refer to the first figure, the digital camera module 100 includes a lens barrel 10, a first lens 22, a second lens 24, and an aperture. The sheet 30, a spacer ring 40, a filter 50, a mirror holder 60, a base 70, an image sensing element 80 and a light transmissive plate 90. 09413793# Single No. A〇101 Page 5 of 14 Page 1013073619-0 1364619 _ 101. February 24 Correction Replacement Page [0012] The lens barrel 10 is substantially columnar, including one end portion 12 and a vertical connection thereto The accommodating portion 14. The end portion 12 is substantially disk-shaped, and an opening 124 is formed in the end portion 12, and the opening 124 is substantially inverted conical shape to prevent stray light from entering the lens. The receiving portion 14 is substantially rounded. Its outer diameter is smaller than the outer diameter of the end portion 12. A receiving hole 142 is defined in the middle of the receiving portion 14 , and the receiving hole 142 is cylindrical and penetrates the opening 124 of the end portion 12 . The outer peripheral wall of the accommodating portion 14 is provided with an external thread 144. [0013] The first lens 22 and the second lens 24 are respectively an aspherical glass lens, and the first lens 22 includes a lens portion 222 and a mounting portion 224 formed around the outer periphery of the lens portion 222. The lens 242 also includes a lens portion 242 and a mounting portion 244 that surrounds the outer periphery of the 妗 lens portion 242. The aperture plate 30 is a fixed aperture having a thickness in the range of 30 to 70 μm, preferably in the range of 40 to 60 μm, and the aperture sheet 3 of the present invention preferably has a thickness of 50 μm. The aperture range 30 has a direct range value of 0.3-0.8 mm, preferably a range of 0.4-0. 6 mm, and a preferred value of the present invention is 0.5 mm. [0015] The spacer ring 40 is used to adjust the distance between components. The spacer ring 4 has a spacer ring hole 402 which is substantially inverted conical shape to prevent stray light from entering the image sensing element 80' to affect image quality. [0016] The material of the aperture plate 3〇 and the spacer ring 40 is a Kovar alloy coated with a black paint, which has a similar thermal expansion coefficient as the glass, so that when the temperature changes, the A lens 22 and a second lens 24 have similar thermal expansion to prevent the first lens 22 and the second lens 24 from tilting or bending. In addition, the length of the Kova alloy during temperature change is 丨94丨3793 鲁 单号Α0101 Page 6/14 pages 1013073619-0 1364619 101. On February 24th, the shuttle replacement page changes very little, so the size can be kept. The stability is such that the aperture sheet 30 and the spacer ring 40 are closely attached to the inner peripheral wall of the lens barrel 10, thereby preventing moisture, viscose vapor and organic vapor from contaminating the surfaces of the first lens 22 and the second lens 24. [0017] The corrugated alloy materials of the aperture sheet 30 and the spacer ring 40 of the preferred embodiment include: iron (Fe) 52% - 53%, nickel (Ni) 29%, cobalt (Co) 17%, and other magnesium ( Mg), manganese (Μη), cerium (Si), carbon (C), aluminum (Ai), zirconium (Zr), titanium (Ti), phosphorus (P), sulfur (S) - species or any combination of several At U-2%. The specific composition is as follows: iron 52. 79%, nickel 29%, cobalt 17%, magnesium 0. 1%, manganese 0. 5%, 矽0. 2%, carbon 0. 0 6%, aluminum 0.1%, zirconium 01%。 0. 1%, Titanium 0. U, phosphorus 0. 02 5%, sulfur 0. 025%. The Kvar alloy aperture plate 30 and spacer ring 40 can withstand a relative humidity of about 5% to 90%, and the temperature range can be applied between minus 40 degrees and minus 85 degrees. The tensile strength of the Kova alloy is 67,000 psi, and the yield strength is 43,000 psi. [0018] At least one surface of the filter 50 is coated with an infrared cut filter (IR-cut). Coating) to remove infrared rays from the reflected light of the subject, thereby improving the image quality. The lens holder 60 has a hollow truncated cone shape. The lens holder 60 has a through hole 62. The diameter of the through hole 62 is substantially equal to the outer diameter of the receiving portion 14 of the lens barrel 10. The peripheral wall of the through hole 62 is provided with a thread 624 at one end thereof, which is threadedly engaged with the external thread 14 4 of the receiving portion 14 of the lens barrel 10. [0020] The pedestal 70 is a rectangular cavity for accommodating the image sensing component 80. [0021] The image sensing element 80 can be a charge coupler (hereinafter referred to as CCD), or a supplementary oxidized metal half 0941379# single number A 〇 101 page 7 / 14 pages 1013073619-0 1364619 [1〇1年.02月24日 Revisedary Meta-Oxide Semiconductor- (hereinafter referred to as CMOS). The color image sensing element 8 is fixed in the base 70 for converting the optical signal of the image into an electrical signal. [0022] The light transmissive plate 90 is covered on the shadow sensing element 8 to protect the image sensing component 80, and the dust water is prevented from being dyed. (4) The component 80° [0023] When assembling, the second lens 22 is first The aperture plate 3, the second lens 24, and the spacer ring 40 are sequentially placed in the valley hole 142 of the housing portion 14 of the lens barrel 10, and then the peripheral wall of the housing hole 142 of the lens barrel 1 adjacent to the spacer ring 40. The adhesive is applied thereto, and then the filter 50 is pressed into the lens barrel and the one end is abutted against the spacer ring 40, and then irradiated with ultraviolet light to fasten the above-mentioned components. [0024] The image sensing element 80 is fixed in the pedestal 70, and the light-transmitting plate 90 is overlaid on the pedestal 70 to protect the image sensing element 8''. Then, the through hole 62 of the lens holder 60 is aligned with the lens barrel 10, and the external thread 144 of the lens barrel is rotatably fitted to the internal thread 624 of the lens holder 60. After focusing, the lens barrel and the lens holder 60 are further dispensed by dispensing. Relatively fixed, the digital camera module has been assembled. [0025] In operation, since the aperture plate 30 and the spacer ring 4 of the digital camera module 100 are made of Kovar alloy material, the aperture plate 30 and the spacer ring 4 and the first lens 22 and the second lens 24 have Similar to the thermal expansion coefficient, the relative positions of the first lens 22 and the second lens 24 and the aperture plate 3 and the spacer ring 4 are not changed when the temperature changes, so that the components in the digital camera module 1 can be prevented. The first lens 22 and the second lens 24 are obliquely bent due to temperature changes, thereby ensuring better image quality. _] In summary, the present invention complies with the invention patent #, and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the present invention is in accordance with the preferred embodiment of the present invention. The present invention is based on the number of pages of the invention. The present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art to the spirit of the present invention are intended to be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS [0027] The first figure is a cross-sectional view of a preferred embodiment of a digital camera module of the present invention. [Main component symbol description] [0028] Digital camera module: 100 [0029] Lens barrel: 10 [0030] End: 12 [0031] Housing: 14 [0032] Opening: 124 [0033] Housing: 142 [0034] External thread: 144 [0035] First lens: 22 [0036] Second lens: 24 [0037] Lens portion: 222, 242 [0038] Mounting portion: 224, 244 [0039] Aperture piece: 30 [ 0040] Spacer ring: 40 [0041] Spacer ring hole: 402 [0042] Filter: 50 〇94m9# Single number deletion 1 Page 9/14 pages 1013073619-0 1364619 [0043] Mirror base: 60 [0044] Through hole: 62 [0045] External thread: 624 [0046] Base: 70 [0047] Image sensing element: 80 [0048] Light-transmissive plate: 90 094137^1 Thief A〇101 Page 10 of 14 Year. February 24th Shuttle is replacing page 1013073619-0