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TWM291014U - Structure of compensating for focal length of lens - Google Patents

Structure of compensating for focal length of lens Download PDF

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Publication number
TWM291014U
TWM291014U TW94220400U TW94220400U TWM291014U TW M291014 U TWM291014 U TW M291014U TW 94220400 U TW94220400 U TW 94220400U TW 94220400 U TW94220400 U TW 94220400U TW M291014 U TWM291014 U TW M291014U
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TW
Taiwan
Prior art keywords
lens
groove
focal length
holder
lens barrel
Prior art date
Application number
TW94220400U
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Chinese (zh)
Inventor
Min-Je Li
Original Assignee
Largan Precision Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Largan Precision Co Ltd filed Critical Largan Precision Co Ltd
Priority to TW94220400U priority Critical patent/TWM291014U/en
Publication of TWM291014U publication Critical patent/TWM291014U/en

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Description

M291014 八、新型說明: 【新型所屬之技術領域】 本創作是賴像裝置有關’而_是指鏡縣、_償構造, • 藉倾輔在雜舰與賴時,如-併輕鏡料像焦距落 點準確落於成像平面上,獲得清晰之影像。 … 【先前技術】 • 由於近年來科技不斷地突破以及創新研發,使得日常生活中 消費性的攜帶型電子產品妓蓬勃且快速的發展,例如個人行動 助理(PDA)、行動通訊器即俗稱手機(m〇bile pH〇NE)。而且在长 新求變的、;肖_式縣下,攜帶型電子產品祕只是保有單一種 用途,例如在PDA、手機上按裝有攝像裝f,讓上述搞帶型電子產 品具有拍照、攝影等魏,所以更能增加上述產品在市場上 業競爭力。 ' 而鏡頭在攝像裝置當中是主要元件之一,且鏡頭是由鏡座、 鏡筒與鏡片組所組成。由於上述鏡座、鏡筒與鏡片組等構件是採 小型化之設計,因此彼此之間的加工與組配公差等級要求也相對 嚴謹,才能讓鏡片組的焦距準確落於成像平面上。當拍攝影像時, 影像得以透過鏡片組匯聚投射在成像平面上,讓成像平面獲得清 晰之影像。 M291014 然而,攝像鏡頭在實際使用上,仍會發發生影像模糊不清晰, 關於此缺關題,請見下贼軸朗:餘人貞在進行攝像鏡 頭的組裝時,會餘—項鏡頭減距是科絲於成像 =面上之—、m,雜產品符合在出貨前蚊。由於現今商品 會送往世界各地販賣、制,且各地之_溫差甚大,何況是在 單—區域更會有早晚溫差過大之事,往㈣溫纽變了鏡頭各租 件的體積’即各組件的組配位置,尤其在此的鏡頭為小型化 々牛’、要/m度的變化量彳肖大而迫使鏡、距與成像平面之間偏 私〇· 1 mm ’即導致鏡片組的焦距無法準確落 _糊不清晰之狀態麟。 ^ *树。㈣上面敘述說明後’可明白得知要在溫差變化下,不 心专攝像鏡啦距投射在成像平面,*能麟清晰之影像者, 印為本案創作人的研發動機所在。 【新型内容】M291014 VIII, new description: [New technology field] This creation is related to the device's 'and _ refers to the mirror county, _ compensation structure, • borrowed from the miscellaneous ship and Lai, such as - and light mirror image The focal point falls exactly on the imaging plane for a clear image. ... [Prior Art] • Due to the continuous breakthroughs in technology and innovation in recent years, the consumption of portable electronic products in daily life has flourished and developed rapidly, such as personal mobile assistants (PDAs) and mobile communicators (commonly known as mobile phones). M〇bile pH〇NE). Moreover, in the long-term and new-changing, Xiao-style county, the secret of portable electronic products is only for a single use, such as mounting a camera on a PDA or mobile phone, so that the above-mentioned electronic products have photos and photography. Waiting for Wei, it is more able to increase the competitiveness of the above products in the market. The lens is one of the main components in the camera, and the lens is composed of the lens holder, the lens barrel and the lens group. Since the above-mentioned components such as the lens holder, the lens barrel and the lens group are miniaturized, the processing and assembly tolerance levels between the mirror holders are relatively strict, so that the focal length of the lens group can accurately fall on the imaging plane. When shooting an image, the image is projected through the lens group and projected onto the imaging plane, giving the imaging plane a clear image. M291014 However, in the actual use of the camera lens, the image blur will still be unclear. For this lack of title, please see the thief axis: When the rest of the camera lens is assembled, the remaining lens will be reduced. It is Coss in the imaging = surface -, m, miscellaneous products meet the mosquito before shipment. Since today's goods will be sent to all parts of the world for sale and production, and the temperature difference between the various places is very large, not to mention that there will be too much temperature difference between the morning and the evening in the single-region, and the volume of each rented item will be changed to (four) Wenny. The position of the assembly, especially in this case, is to miniaturize the yak ', the amount of change of /m degree is large, and the mirror, the distance between the mirror and the imaging plane is 1 ', which means that the focal length of the lens group cannot be Accurately fall into the state of Lin. ^ * Tree. (4) After the above description, it can be understood that under the temperature difference, the camera is not projected on the imaging plane, and the image of the speaker can be clearly printed. [New content]

At 1作主要目的,是提供一種鏡頭在外界溫度變化下,同樣 什〜'、、距準確洛於成像平面上,並獲得清晰影像,而達成本創 f Η 的 〇 罝本们作疋―種鏡戦距補償構造,其是組配於攜帶型電子產 〜有攝像鏡頭#中。而鏡頭包括有鏡座、鏡筒與鏡片組與脹縮 M291014 體’且是.11她縮體設置於下狀間 該鏡筒之間、該則、—者.鐵座與 產。。之卩1 h 、’ s '卩及魏絲賴帶型電子 生4 A據此,鏡頭在外界溫度變化下,鏡片組本身焦距會產 可^再力吐鏡雄賴的_,鏡頭的實際《、點的改變, 焦距落點與成像平面之距離,使彳^§ ’二,鏡片組成像 上 吏侍成像焦距準確落於成像平面 蔓件清晰之影像,達到本創作之目的。 【實施方式】 有關本創作為達成上述目的, 力政,炫舉—較佳實施例,並配合 所採用之技術、手段及其它之 圖示詳細說明如下。 《第一實施例》 首先凊參閱第一圖所示,圖中一 4示一具有攝像鏡頭之攜帶型 毛產口口 10以手機為例。且鏡頭隹 ^ . 、、、趣補償構造是組配於攜帶型電 產品10的攝像鏡頭20當中◦該鈐 ^ . 兄碩20包括有一鏡座21、一鏡 间22、一鏡片組23與三個脹縮骷 ^ &lt; Μ,並請搭配參閱圖式中第二 圖所不,其中: 該鏡座21,是位於該攜帶型番7 $十產品10的成像平面11正上 万’該鏡座21具有一結合槽211,口 碑 且該結合槽211的槽壁面具有 嘴紋結構,另於該結合槽211槽底心| &amp;免中央處設有一中空通道212 ; 該鏡筒22,其具有一結合環部% 1 221,且該結合環部221的外 M291014 環面具有螺紋結構,該鏡筒22以結合環部221螺合於鏡座2]的 結合槽211内; . 該鏡片、组23,其包括有二枚鏡片23卜且該鏡片231平行配 置於該鏡筒22内,並正好位於該鏡座21的巾空通道上方處, 且該鏡片組23的成像焦距落點a會位於成像平面η上; 該脹縮體24,其是隨該鏡座21與該鏡筒22溫度變化而能線 性膨脹與收縮之構件,且在此係以呈環狀構件為例,該脹縮體^ • 是組配貼合於該攜帶型電子產品10表面與該鏡座21底部之間、 該鏡座21的結合槽211槽底面與該鏡筒22白勺結合環部221底面 之間,以及鏡片組23之鏡片231之間。 ^ 了清楚綱本創作第—實施之使錄軸功效,請搭配圖 式中弟一圖所不以及下列說明: 當外界溫度變化量為正值時,其會造成鏡頭2〇各構件位置偏 •=,且導致鏡片組23成像焦距落點朝向成像平面11内偏移,使 付由雜焦距原洛點a偏移至落點b (在常溫下鏡片組烈的成像 焦距洛點a是位於成像平面上)。 然而,在上述狀況發生的同時,可藉由脹縮體24隨著該鏡座 21队亥叙同22溫度變化而能線性膨脹與收縮之構件,讓脹縮體 24適语%脹,並推移調整攜帶型電子產品10與該鏡座21之間位 置、該鏡座21的結合槽211才曹底面與該鏡筒22的結合環部⑵ 底面之間位置,以及鏡片組23之鏡片231之間位置。進而讓鏡片 M291014 組23的成像焦距由落點b恢復至原落點a ,使得成鏡片組23成像 焦距再次準確洛於成像平面Π上,以致於獲得清晰之影像。 . 《第二實施例》 請配合芩閱第二圖所示,其是利用在該鏡座21結合槽211的 槽緣設有二相對之配設槽213,而在該鏡筒22的頂部設有二相對 - 置設槽222 ’且該鏡座2丨配設槽213槽底面與該鏡筒22的置設槽 .籲 222槽底面之間呈水平排列,並於該鏡座21配設槽213槽底面與 該鏡筒22的置設槽222槽底面共同組配貼合有一個雙層結構之脹 縮體24,該脹縮體24係由二異材之片體241、2似所構成,且分 別為不同線性脹縮能力者。 而關於第二實施例的使用方式,請配合參關式中第三圖與 第四圖: • 當外界溫度變化量為正值時,其會造成鏡頭2G各構件位置偏 移’且導致鏡片組23成像焦距落點朝向成像平面U内偏移,使 • 得由成像焦距原落點a偏移至落點b ; 在上述狀況發生的同時,可藉由脹縮體24隨著該鏡座2i與 該鏡同22、溫度變化而能線性膨脹與收縮之構件,讓嚴縮體之 二片體241、242由鏡座2i酉己設槽213朝向該鏡筒22的置設槽似 而向外適當膨脹彎曲(即片體241、242末端朝向中央處向外膨服 I彎曲)’而同時帶動該鏡筒22恢復至於鏡座21内的原位置處。 M291014 進而讓鏡片組23的成像焦距由落點b恢復至原落點a,使得成鏡 片組23成像焦距再次準確落於成像平面11上,以致於獲得清晰 之影像。 在此值得-提的是,本創作在上述第—與第二實施例中,比 ,以溫度變化為正值狀態τ,描述鏡職距的補償,·而當溫度^ 匕為負值時,即與上述的作動方式反之,故在此不在多加以警述; 此外脹縮體可為鋼、錢轉等材質。 10 M291014 【圖式簡單說明】 第一圖為本創作攜帶型電子產品組配有具鏡頭距焦補償之鏡頭 第二圖為本創作第一實施例實施狀態示意圖。 第三圖為本創作第二實施例實施狀態示意圖。 第四圖為本創作第二實施例脹縮體彎曲變形示意圖。 【主要元件符號說明】 攜帶型電子產品10 成像平面11 鏡頭20 鏡座21 結合槽211 中空通道212 配設槽213 鏡筒22 結合環部221 置設槽222 鏡片組23 鏡片231 漲縮體24 片體242 片體241 a:鏡頭於常溫狀態下其鏡片組之成像焦距落點位置 b:鏡頭於溫差變化狀態下其鏡片組之成像焦距落點位置The main purpose of At 1 is to provide a kind of lens under the change of external temperature, the same as ~, the distance is accurately on the imaging plane, and obtain a clear image, and the 〇罝 达成 达成 种 种The mirror pitch compensation structure is assembled in a portable electronic product ~ with a camera lens #. The lens includes a lens holder, a lens barrel and a lens group, and a expansion and contraction M291014 body and is a .11 her body is disposed between the lens barrels of the lower portion, and then, the iron seat is produced. . After 1 h, ' s '卩 and Wei Si Lai-type electrons 4 A, according to this, the lens of the lens itself will produce a focal length that can be produced by the lens, and the actual lens of the lens. The change of the point, the distance between the focal point and the imaging plane, so that the lens composition image is on the image of the image plane, and the image is clear, which is the purpose of the creation. [Embodiment] The present invention is described in detail in order to achieve the above object, the power, the simplification, the preferred embodiment, and the techniques, means and other illustrations used. <<First Embodiment>> First, referring to the first figure, a portable display port 10 having an image pickup lens is shown in the figure, taking a mobile phone as an example. And the lens 隹 ^ , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,胀 胀 骷 ^ &; Μ 并 并 并 并 并 并 并 并 并 并 & 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二21 has a coupling groove 211, word-of-mouth, and the groove wall surface of the coupling groove 211 has a mouth pattern structure, and a hollow channel 212 is disposed at the center of the groove of the coupling groove 211; the lens barrel 22 has a The ring portion % 1 221 is combined, and the outer M291014 ring surface of the joint ring portion 221 has a threaded structure, and the lens barrel 22 is screwed into the joint groove 211 of the lens holder 2] by the joint ring portion 221; The lens 231 includes two lenses 23 and the lens 231 is disposed in parallel in the lens barrel 22, and is located just above the air passage of the lens holder 21, and the imaging focal length drop point of the lens group 23 is located in the imaging a plane η; the expansion and contraction body 24, which is linearly expandable as the temperature of the lens holder 21 and the lens barrel 22 changes The contracting member is exemplified by a ring-shaped member which is assembled to fit between the surface of the portable electronic product 10 and the bottom of the lens holder 21, and the lens holder 21 is combined. The bottom surface of the groove 211 is between the bottom surface of the lens barrel 22 and the bottom surface of the ring portion 221, and between the lens 231 of the lens group 23. ^ A clear outline of the creation of the first-implementation of the effect of the recording axis, please match the picture in the picture of the younger brother and the following description: When the external temperature change is positive, it will cause the position of the lens 2 偏=, and causes the lens group 23 imaging focal length to be offset toward the imaging plane 11, so that the misfocus distance is offset from the original point a to the falling point b (the imaging focus of the lens group at room temperature is fixed at the point a is located in the imaging on flat surface). However, at the same time as the above-mentioned situation occurs, the expansion and contraction body 24 can linearly expand and contract with the temperature change of the lens holder 21, and the expansion and contraction body 24 can be swelled and slid. The position between the portable electronic product 10 and the lens holder 21, the position of the coupling groove 211 of the lens holder 21, the bottom surface of the lens holder 22 and the bottom surface of the coupling ring portion (2) of the lens barrel 22, and the lens 231 of the lens group 23 are adjusted. position. Further, the imaging focal length of the lens M291014 group 23 is restored from the falling point b to the original landing point a, so that the imaging focal length of the lens group 23 is again accurately on the imaging plane, so that a clear image is obtained. [Second Embodiment] Please refer to the second drawing, which is provided with two oppositely disposed grooves 213 at the groove edge of the coupling groove 211 of the lens holder 21, and is provided at the top of the lens barrel 22. There are two opposite-position slots 222', and the mirror base 2 is provided with a groove bottom surface of the groove 213 and a groove for the lens barrel 22. The bottom surface of the groove 222 is horizontally arranged, and the lens holder 21 is provided with a groove. A bottom surface of the 213 groove and a bottom surface of the groove 222 of the lens barrel 22 are combined to form a double-layer structure expansion and contraction body 24, and the expansion and contraction body 24 is composed of two different body pieces 241 and 2. And those with different linear expansion and contraction capabilities. Regarding the usage mode of the second embodiment, please cooperate with the third and fourth diagrams of the parametric type: • When the external temperature change amount is positive, it will cause the position of each component of the lens 2G to shift 'and cause the lens group 23 imaging focal length drop point is offset within the imaging plane U, so that it is offset from the original focal point a of the imaging focal length to the falling point b; while the above situation occurs, the expansion and contraction body 24 can be followed by the lens holder 2i With the mirror 22, the temperature can be linearly expanded and contracted, and the two bodies 241, 242 of the rigid body are arranged outwardly from the lens holder 2i to the groove of the lens barrel 22; Appropriate expansion and bending (i.e., the ends of the sheets 241, 242 are outwardly expanded toward the center), while simultaneously driving the lens barrel 22 to the original position in the lens holder 21. M291014 in turn causes the imaging focal length of the lens group 23 to be restored from the falling point b to the original landing point a, so that the imaging focal length of the lens group 23 again falls exactly on the imaging plane 11 so that a clear image is obtained. It is worth mentioning here that, in the above-mentioned first and second embodiments, the temperature change is a positive value state τ, and the compensation of the mirror pitch is described, and when the temperature ^ 匕 is a negative value, That is to say, the above-mentioned operation method is reversed, so there is no more warning here; in addition, the expansion and contraction body can be made of steel, money, and the like. 10 M291014 [Simple description of the diagram] The first figure is a lens with a lens distance compensation for the creative portable electronic product group. The second figure is a schematic diagram of the implementation state of the first embodiment of the creation. The third figure is a schematic diagram of the implementation state of the second embodiment of the creation. The fourth figure is a schematic view of the bending deformation of the expansion and contraction body according to the second embodiment of the present invention. [Main component symbol description] Portable electronic product 10 Imaging plane 11 Lens 20 Mirror holder 21 Bonding groove 211 Hollow channel 212 Locating groove 213 Lens barrel 22 Coupling ring portion 221 Locating groove 222 Lens group 23 Lens 231 Expansion and contraction 24 pieces Body 242 Sheet 241 a: The focal length of the lens of the lens group at the normal temperature state. b: The focal length of the lens of the lens group under the temperature difference

Claims (1)

M291014 九、申請專利範圍: 1· 一種鏡頭焦距補償構造,其組配於攜帶型電子產品具有攝像鏡 頭當中,且攜帶型電子產品具有一成像平面,該鏡頭包括有: 一鏡座; $兄_ ’與該鏡座相組配結合; 一鏡片組,由至少一枚鏡片所構成,並配置於該鏡筒内,且該 鏡片組成像焦距落點位於該攜帶型電子產品之成像平面;以及 至少一服縮體,設置於選自下列間隙之其中一至三者:該鏡座 與該鏡筒之間、該鏡片組的鏡片之間以及該鏡座與該攜帶型電子產 品之間° 2·如申請專利範圍第1項所述之鏡頭焦距補償構造,其中該鏡座 具有一結合槽;該鏡筒其具有一結合環部,該鏡筒以結合環部螺合 方d兄座的結合槽内;而脹縮體設置貼合於該鏡座的結合槽槽底面與 该鏡筒的結合環部底面之間。 3·如申請專利範圍第1項所述之鏡頭焦距補償構造,其中該鏡座 結合槽的槽緣設有至少一配設槽,該鏡筒的頂部設有至少一置設 槽’該鏡座配設槽槽底面與該鏡筒的置設槽槽底面之間呈水平排 列’另於該鏡座配設槽槽底面與該鏡筒的置設槽槽底面共同組配貼 合有一脹縮體。 M291014 4.如申請專利範圍第3項所述之鏡頭焦距補償構造,其中脹縮體 為二異材之片體所構成,且各片體分別為不同線性脹縮能力。M291014 IX. Patent application scope: 1. A lens focal length compensation structure, which is incorporated in a portable electronic product having an imaging lens, and the portable electronic product has an imaging plane, the lens includes: a mirror holder; Combining with the lens holder; a lens group consisting of at least one lens and disposed in the lens barrel, and the lens composition image focal point is located at an imaging plane of the portable electronic product; a shrinkage body disposed in one or three of the following gaps: between the lens holder and the lens barrel, between the lens of the lens group, and between the lens holder and the portable electronic product. The lens focal length compensation structure of the first aspect of the invention, wherein the lens holder has a coupling groove; the lens barrel has a coupling ring portion, and the lens barrel is coupled to the coupling groove of the ring portion of the square seat; The expansion and contraction body is disposed between the bottom surface of the coupling groove of the lens holder and the bottom surface of the coupling ring portion of the lens barrel. 3. The lens focal length compensation structure of claim 1, wherein the lens holder is provided with at least one groove on the groove edge of the groove, and the top of the lens barrel is provided with at least one groove. The bottom surface of the groove is arranged horizontally between the bottom surface of the groove of the lens barrel, and the bottom surface of the groove provided with the groove is combined with the bottom surface of the groove of the lens barrel to form an expansion and contraction body. . M291014. The lens focal length compensation structure according to claim 3, wherein the expansion and contraction body is composed of a sheet of two different materials, and each of the sheets has different linear expansion and contraction capabilities.
TW94220400U 2005-11-24 2005-11-24 Structure of compensating for focal length of lens TWM291014U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI399567B (en) * 2007-06-01 2013-06-21 Hon Hai Prec Ind Co Ltd Lens module and camera module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI399567B (en) * 2007-06-01 2013-06-21 Hon Hai Prec Ind Co Ltd Lens module and camera module

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