TWM451549U - Lens module - Google Patents
Lens module Download PDFInfo
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- TWM451549U TWM451549U TW101222115U TW101222115U TWM451549U TW M451549 U TWM451549 U TW M451549U TW 101222115 U TW101222115 U TW 101222115U TW 101222115 U TW101222115 U TW 101222115U TW M451549 U TWM451549 U TW M451549U
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- lens
- optical axis
- fitting structure
- object side
- sleeve
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Description
本創作涉及一種鏡片模組,特別指一種應用於行動電子產品的小型鏡片模組,其製造精度高且易於生產。The present invention relates to a lens module, and more particularly to a small lens module for use in mobile electronic products, which is manufactured with high precision and is easy to produce.
隨著照相手機的普及化,手機的攝影功能已然成為消費者在選購新手機時的主要決定因素之一。為了使照相品質更佳,且體積以及重量更為輕薄,因此在組裝光學透鏡時的誤差容許值也越來越小。以一般200萬畫素的攝影鏡頭來說,光學透鏡之間的偏心誤差值必須小於3μm。With the popularization of camera phones, the camera function of mobile phones has become one of the main determinants of consumers when purchasing new phones. In order to make the photographic quality better, and the volume and weight are lighter and thinner, the error tolerance when assembling the optical lens is also smaller. In the case of a photographic lens of 2 million pixels, the eccentricity error between the optical lenses must be less than 3 μm.
現請參閱第一圖,圖中所示為既有的鏡片模組,該鏡片模組中包含有一鏡片套筒90以及安裝於鏡片套筒90內的複數枚光學透鏡91。其中,各個光學透鏡91又包含有接近光軸94的透鏡部92,以及遠離光軸94的定位部93。光學透鏡91的定位部93與鏡片套筒90配合組裝,藉由鏡片套筒90將所有光學透鏡91固定。因此在既有的鏡片模組中,鏡片套筒90的製造誤差將會與光學透鏡91的組裝誤差疊加,並擴大光學透鏡91的組裝誤差。若要減少光學透鏡91的組裝誤差,則必須先確保鏡片套筒90在製作時的誤差足夠小,才可避免光學透鏡91的組裝誤差過大。但由於光學透鏡91與鏡片套筒90的製程以及模具精度不同等,鏡片套筒90在製造時的公差一般較光學透鏡91高。因而造成既有鏡片模組的組裝誤差過大,進而使生產良率變低。Referring now to the first figure, there is shown an existing lens module comprising a lens sleeve 90 and a plurality of optical lenses 91 mounted in the lens sleeve 90. Each of the optical lenses 91 further includes a lens portion 92 close to the optical axis 94 and a positioning portion 93 away from the optical axis 94. The positioning portion 93 of the optical lens 91 is assembled with the lens sleeve 90, and all the optical lenses 91 are fixed by the lens sleeve 90. Therefore, in the existing lens module, the manufacturing error of the lens sleeve 90 will be superimposed on the assembly error of the optical lens 91, and the assembly error of the optical lens 91 will be enlarged. In order to reduce the assembly error of the optical lens 91, it is necessary to ensure that the error of the lens sleeve 90 at the time of fabrication is sufficiently small to avoid excessive assembly error of the optical lens 91. However, since the manufacturing process of the optical lens 91 and the lens sleeve 90 and the precision of the mold are different, the lens sleeve 90 is generally made to have a higher tolerance than the optical lens 91. As a result, the assembly error of the existing lens module is too large, and the production yield is lowered.
有鑑於上述缺點,既有鏡片模組的結構實有必要加以改良。In view of the above shortcomings, it is necessary to improve the structure of the lens module.
本創作之目的是在無需更動鏡片套筒製程或結構的情形下,提供一種具有高組裝精度以及生產良率的鏡片模組。The purpose of this creation is to provide a lens module with high assembly accuracy and production yield without the need to change the lens sleeve process or structure.
為了達成上述目的,本創作之鏡片模組,包含一鏡片套筒,在鏡片套筒內依序從物側排列到像側的設置有第一透鏡以及第二透鏡;第一透鏡具有接近光軸的第一透鏡部以及遠離光軸的第一定位部,其中第一定位部的像側環設有第一嵌合結構,且第一嵌合結構與第一透鏡部為一體模造成型;第二透鏡具有接近光軸的第二透鏡部以及遠離光軸的第二定位部,其中第二定位部的物面側環設有第二嵌合結構,且第二嵌合結構與第二透鏡部為一體模造成型;其中,第一嵌合結構與第二嵌合結構互相配合卡固,使第一透鏡與第二透鏡沿光軸對齊。In order to achieve the above object, the lens module of the present invention comprises a lens sleeve, and a first lens and a second lens are arranged in the lens sleeve from the object side to the image side in sequence; the first lens has a proximity optical axis. a first lens portion and a first positioning portion away from the optical axis, wherein the image side ring of the first positioning portion is provided with a first fitting structure, and the first fitting structure is integrally molded with the first lens portion; The lens has a second lens portion close to the optical axis and a second positioning portion away from the optical axis, wherein the object side ring of the second positioning portion is provided with a second fitting structure, and the second fitting structure and the second lens portion are The first molding structure and the second fitting structure are interlocked to each other to align the first lens and the second lens along the optical axis.
在另一較佳實施例中,所述第一嵌合結構設為一向第一透鏡凹入的環形槽,該環形槽具有一垂直光軸的底面以及平行光軸的側壁;而所述第二嵌合結構設為一向外凸出的環形肋,該環形肋具有一垂直光軸的頂面以及平行光軸的環形壁。In another preferred embodiment, the first fitting structure is configured as an annular groove recessed toward the first lens, the annular groove has a bottom surface of a vertical optical axis and a sidewall of the parallel optical axis; and the second The fitting structure is provided as an outwardly projecting annular rib having a top surface of a vertical optical axis and an annular wall parallel to the optical axis.
在一較佳實施例中,所述側壁上設有錐狀的第一導引面;而環形壁上則設有錐狀的第二導引面,當第二嵌合結構嵌入第一嵌合結構的時候,藉著第一導引面以及第二導引面的配合,使第一透鏡與第二透鏡的光軸能夠自動校正對齊。In a preferred embodiment, the side wall is provided with a tapered first guiding surface; and the annular wall is provided with a tapered second guiding surface, when the second fitting structure is embedded in the first fitting In the structure, the optical axes of the first lens and the second lens can be automatically aligned by the cooperation of the first guiding surface and the second guiding surface.
本創作的特點在於各個透鏡的定位部以及嵌合結構與其透鏡部一體模造成型,因此其定位部與嵌合結構具有極高的製造精確度,且藉由定位部以及嵌合結構互相嵌合而定位,使各透鏡組裝時,具有光學元件等級的高組裝精度以及生產良率,從而避免因鏡片套筒的製造誤差過大而使透鏡的定位產生偏差的問題。The present invention is characterized in that the positioning portion and the fitting structure of each lens are integrally molded with the lens portion thereof, so that the positioning portion and the fitting structure have extremely high manufacturing precision, and are fitted to each other by the positioning portion and the fitting structure. The positioning enables the assembly of the lenses to have a high assembly accuracy of the optical element level and a production yield, thereby avoiding the problem that the positioning of the lens is deviated due to an excessive manufacturing error of the lens sleeve.
為詳細說明本創作之技術內容、構造特徵、所達成目的及功效,以下茲舉例並配合圖式詳予說明。In order to explain in detail the technical content, structural features, goals and effects of the present invention, the following is a detailed description with reference to the drawings.
請參閱第二圖,在本創作鏡片模組中包含一鏡片套筒10,在鏡片套筒10內依序從物側11排列到像側12的設置有第一透鏡20、第二透鏡30以及第三透鏡40。Referring to the second figure, a lens sleeve 10 is disposed in the lens module, and the first lens 20 and the second lens 30 are disposed in the lens sleeve 10 from the object side 11 to the image side 12, and The third lens 40.
其中,第一透鏡20包含靠近光軸13的第一透鏡部21以及遠離光軸13的第一定位部22,第一透鏡20藉由第一定位部22直接與鏡片套筒10連接固定。在第一定位部22靠像側12的面上設有第一嵌合結構23,該第一嵌合結構23與第一透鏡部21為一體模造成型,因此與第一透鏡部21同樣具有光學元件等級的高精密度及極低的製造誤差。The first lens 20 includes a first lens portion 21 close to the optical axis 13 and a first positioning portion 22 remote from the optical axis 13 . The first lens 20 is directly connected to the lens sleeve 10 by the first positioning portion 22 . A first fitting structure 23 is provided on the surface of the first positioning portion 22 on the image side 12, and the first fitting structure 23 is integrally molded with the first lens portion 21, and thus has the same optical property as the first lens portion 21. High precision of component grades and extremely low manufacturing tolerances.
第二透鏡30則同樣包含了靠近光軸13的第二透鏡部31以及遠離光軸13的第二定位部32,在第二定位部32靠物側11的一面設有第二嵌合結構33。其中的第二嵌合結構33與第二透鏡部31同樣為一體模造成型,並僅有極低的製造誤差。且第一嵌合結構23與第二嵌合結構33互相配合卡固,藉此將第一透鏡20與第二透鏡30相互固定,進而定位在同一光軸13上。The second lens 30 also includes a second lens portion 31 close to the optical axis 13 and a second positioning portion 32 remote from the optical axis 13. A second fitting structure 33 is provided on one side of the object side 11 of the second positioning portion 32. . The second fitting structure 33 is similar to the second lens portion 31 in the form of an integral mold, and has only a very low manufacturing error. The first fitting structure 23 and the second fitting structure 33 are mutually engaged and fixed, whereby the first lens 20 and the second lens 30 are fixed to each other and positioned on the same optical axis 13.
由於第一透鏡20與第二透鏡30是利用第一嵌合結構23與第二嵌合結構33相互嵌接的方式定位,因此鏡片套筒10的製造誤差並不會影響到第一透鏡20與第二透鏡30之間的偏心誤差。且第一嵌合結構23與第二嵌合結構33分別是與第一、第二透鏡部31一體模造成型,因此製造誤差極小,可減低第一透鏡20以及第二透鏡30之間的偏心誤差。Since the first lens 20 and the second lens 30 are positioned by the first fitting structure 23 and the second fitting structure 33, the manufacturing error of the lens sleeve 10 does not affect the first lens 20 and An eccentricity error between the second lenses 30. The first fitting structure 23 and the second fitting structure 33 are integrally molded with the first and second lens portions 31, respectively, so that the manufacturing error is extremely small, and the eccentricity error between the first lens 20 and the second lens 30 can be reduced. .
更進一步,在第二透鏡30靠像側12的面上以及第三透鏡40的靠物側11的面上分別設有第三嵌合結構38以及第四嵌合結構41。第二透鏡30與第三透鏡40同樣藉由第三嵌合結構38與第四嵌合結構41的相互嵌接而固定。且第三嵌合結構38與第四嵌合結構41同樣分別是與第二透鏡30及第三透鏡40一體模造成型,可減少其製造誤差。然而,由於鏡片模組中的透鏡數量常依據實際需求而改動,故本創作之鏡片模組並不以三片透鏡所組成為限。Further, a third fitting structure 38 and a fourth fitting structure 41 are provided on the surface of the second lens 30 on the image side 12 and the surface of the object side 11 of the third lens 40, respectively. Similarly, the second lens 30 and the third lens 40 are fixed by the mutual engagement of the third fitting structure 38 and the fourth fitting structure 41. Moreover, the third fitting structure 38 and the fourth fitting structure 41 are integrally molded with the second lens 30 and the third lens 40, respectively, and the manufacturing error thereof can be reduced. However, since the number of lenses in the lens module is often changed according to actual needs, the lens module of the present invention is not limited by the three lenses.
再請參閱第三圖及第四圖,在此一實施例中,第一嵌合結構23設為由第一定位部22表面向透鏡內部凹入的環形槽24,該環形槽24具有垂直於光軸13的底面25以及平行於光軸13的側壁26,且在側壁26上設有錐狀的第一導引面27。而上述第二嵌合結構33則是向外凸出的環形肋34,環形肋34同樣具有垂直於光軸13的頂面35,以及平行於光軸13的環形壁36,在環形壁36上同樣設有錐狀的第二導引面37。Referring to the third and fourth figures, in this embodiment, the first fitting structure 23 is defined as an annular groove 24 recessed from the surface of the first positioning portion 22 toward the inside of the lens, the annular groove 24 having a perpendicular to The bottom surface 25 of the optical axis 13 and the side wall 26 parallel to the optical axis 13 are provided with a tapered first guiding surface 27 on the side wall 26. The second fitting structure 33 is an outwardly projecting annular rib 34 which also has a top surface 35 perpendicular to the optical axis 13 and an annular wall 36 parallel to the optical axis 13 on the annular wall 36. A tapered second guiding surface 37 is also provided.
因此當第二嵌合結構33嵌入第一嵌合結構23的時候,藉由第一導引面27以及第二導引面37的導引配合,使第一透鏡20與第二透鏡30的光軸13能夠自動校正對齊,增進組裝效率。而當第一嵌合結構23與第二嵌合結構33完全嵌合定位時,第一嵌合結構23的環形槽24的底面25與側壁26分別抵頂第二嵌合結構33的環形肋34的頂面35與環形壁36。藉此,第一定位部22與第二定位部32將互相抵頂,除了能夠確保第一透鏡20與第二透鏡30的光軸13互相對齊外,更進一步確保第一透鏡20與第二透鏡30間能保持一預設的距離。Therefore, when the second fitting structure 33 is embedded in the first fitting structure 23, the light of the first lens 20 and the second lens 30 is made by the guiding engagement of the first guiding surface 27 and the second guiding surface 37. The shaft 13 is capable of automatically correcting alignment and improving assembly efficiency. When the first fitting structure 23 and the second fitting structure 33 are completely engaged and positioned, the bottom surface 25 and the side wall 26 of the annular groove 24 of the first fitting structure 23 respectively abut the annular rib 34 of the second fitting structure 33. The top surface 35 is with the annular wall 36. Thereby, the first positioning portion 22 and the second positioning portion 32 will abut each other, and in addition to ensuring that the optical axes 13 of the first lens 20 and the second lens 30 are aligned with each other, the first lens 20 and the second lens are further ensured. 30 can maintain a preset distance.
綜上所述,本創作中各個透鏡20、30的定位部22、 32以及嵌合結構32、33與其透鏡部21、31一體模造成型,因此其定位部22、32與嵌合結構32、33具有極高的製造精確度,且藉由定位部32、33以及嵌合結構32、33互相嵌合而定位,使各透鏡20、30組裝時,具有光學元件等級的高組裝精度以及生產良率,從而避免因鏡片套筒10的製造誤差過大而使透鏡20、30的定位產生偏差的問題。In summary, the positioning portion 22 of each lens 20, 30 in the present creation, 32 and the fitting structures 32, 33 are integrally molded with their lens portions 21, 31, so that the positioning portions 22, 32 and the fitting structures 32, 33 have extremely high manufacturing precision, and are positioned by the positioning portions 32, 33 and The merging structures 32 and 33 are fitted and positioned to each other, so that when the lenses 20 and 30 are assembled, the assembly accuracy of the optical element level and the production yield are high, so that the lenses 20 and 30 are prevented from being excessively caused by the manufacturing error of the lens sleeve 10. The positioning of the problem creates a problem of deviation.
10‧‧‧鏡片套筒10‧‧‧ lens sleeve
11‧‧‧物側11‧‧‧ object side
12‧‧‧像側12‧‧‧ image side
13‧‧‧光軸13‧‧‧ optical axis
20‧‧‧第一透鏡20‧‧‧ first lens
21‧‧‧第一透鏡部21‧‧‧First lens section
22‧‧‧第一定位部22‧‧‧First Positioning Department
23‧‧‧第一嵌合結構23‧‧‧First chimeric structure
24‧‧‧環形槽24‧‧‧ring groove
25‧‧‧底面25‧‧‧ bottom
26‧‧‧側壁26‧‧‧ side wall
27‧‧‧第一導引面27‧‧‧First guiding surface
30‧‧‧第二透鏡30‧‧‧second lens
31‧‧‧第二透鏡部31‧‧‧Second lens section
32‧‧‧第二定位部32‧‧‧Second Positioning Department
33‧‧‧第二嵌合結構33‧‧‧Second chimeric structure
34‧‧‧環形肋34‧‧‧Ring ribs
35‧‧‧頂面35‧‧‧ top surface
36‧‧‧環形壁36‧‧‧Circular wall
37‧‧‧第二導引面37‧‧‧Second guiding surface
38‧‧‧第三嵌合結構38‧‧‧ third chimeric structure
40‧‧‧第三透鏡40‧‧‧ third lens
41‧‧‧第四嵌合結構41‧‧‧Fourth chimeric structure
90‧‧‧鏡片套筒90‧‧‧ lens sleeve
91‧‧‧光學透鏡91‧‧‧ optical lens
92‧‧‧透鏡部92‧‧‧Lens Department
93‧‧‧定位部93‧‧‧ Positioning Department
94‧‧‧光軸94‧‧‧ optical axis
第一圖係既有鏡片模組之剖面圖。The first figure is a cross-sectional view of a lens module.
第二圖係本創作一實施例之剖面圖。The second drawing is a cross-sectional view of an embodiment of the present creation.
第三圖係本創作第一透鏡與第二透鏡尚未嵌合之示意圖。The third figure is a schematic diagram in which the first lens and the second lens are not yet fitted.
第四圖係本創作第一透鏡與第二透鏡互相嵌合之組合示意圖。The fourth figure is a combination diagram of the first lens and the second lens of the present invention.
10‧‧‧鏡片套筒10‧‧‧ lens sleeve
11‧‧‧物側11‧‧‧ object side
12‧‧‧像側12‧‧‧ image side
13‧‧‧光軸13‧‧‧ optical axis
20‧‧‧第一透鏡20‧‧‧ first lens
21‧‧‧第一透鏡部21‧‧‧First lens section
22‧‧‧第一定位部22‧‧‧First Positioning Department
23‧‧‧第一嵌合結構23‧‧‧First chimeric structure
30‧‧‧第二透鏡30‧‧‧second lens
31‧‧‧第二透鏡部31‧‧‧Second lens section
32‧‧‧第二定位部32‧‧‧Second Positioning Department
33‧‧‧第二嵌合結構33‧‧‧Second chimeric structure
38‧‧‧第三嵌合結構38‧‧‧ third chimeric structure
40‧‧‧第三透鏡40‧‧‧ third lens
41‧‧‧第四嵌合結構41‧‧‧Fourth chimeric structure
Claims (6)
Priority Applications (1)
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TW101222115U TWM451549U (en) | 2012-11-15 | 2012-11-15 | Lens module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW101222115U TWM451549U (en) | 2012-11-15 | 2012-11-15 | Lens module |
Publications (1)
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TWM451549U true TWM451549U (en) | 2013-04-21 |
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ID=48801857
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TW101222115U TWM451549U (en) | 2012-11-15 | 2012-11-15 | Lens module |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI662311B (en) * | 2017-02-06 | 2019-06-11 | 大陸商光寶電子(廣州)有限公司 | Optical assembly and camera module |
US10859784B2 (en) | 2017-02-06 | 2020-12-08 | Lite-On Electronics (Guangzhou) Limited | Optical assembly and camera module |
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2012
- 2012-11-15 TW TW101222115U patent/TWM451549U/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI662311B (en) * | 2017-02-06 | 2019-06-11 | 大陸商光寶電子(廣州)有限公司 | Optical assembly and camera module |
US10859784B2 (en) | 2017-02-06 | 2020-12-08 | Lite-On Electronics (Guangzhou) Limited | Optical assembly and camera module |
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