TWI454775B - Assembling apparatus for lens module and assembling method for the same - Google Patents
Assembling apparatus for lens module and assembling method for the same Download PDFInfo
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Description
本發明涉及一種鏡頭模組組裝技術，尤其涉及一種鏡頭模組組裝治具及組裝鏡頭模組之方法。The invention relates to a lens module assembly technology, in particular to a lens module assembly fixture and a method for assembling the lens module.
近年來，隨著多媒體技術之發展，鏡頭模組之應用範圍愈來愈廣，如應用到數位相機、攝像機及帶有攝像功能之手機等電子產品中。人們對數位相機、攝像機及帶有攝像功能之手機追求小型化同時，對其拍攝出之物體之影像品質也提出更高要求，即希望拍攝物體之影像畫面清晰，而物體之成像品質很大程度上取決於組裝過程中，鏡頭模組中之各透鏡之光軸是否對齊。Alpheus等人於1995年SPIE系統、圖像計量學第四次會議(Videometrics IV)上發表之論文“Zoom lens calibration for wind tunnel measurements”中揭示了由於鏡頭模組中之各透鏡之光軸不對齊而產生之影響。因此，透鏡之組裝必須相當精確，以提高光軸對齊之幾率，從而提高鏡頭模組之成像品質。In recent years, with the development of multimedia technology, the application range of lens modules has become more and more extensive, such as in electronic products such as digital cameras, video cameras, and mobile phones with camera functions. At the same time, people are pursuing miniaturization of digital cameras, camcorders, and mobile phones with camera functions. At the same time, the image quality of the objects they shoot is also higher, that is, the image of the object is desired to be clear, and the image quality of the object is largely It depends on whether the optical axes of the lenses in the lens module are aligned during assembly. Alpheus et al., "Zoom lens calibration for wind tunnel measurements", presented at the 1995 SPIE System, Videometrics IV, revealed that the optical axes of the lenses in the lens module are not aligned. And the impact. Therefore, the assembly of the lens must be quite accurate to increase the probability of alignment of the optical axis, thereby improving the imaging quality of the lens module.
鏡頭模組通常包括鏡筒(Barrel)、鏡座(Holder)、透鏡、間隔環及濾光片等元件，其中，透鏡沿鏡筒之中心軸方向依次固定於鏡筒內。鏡頭模組組裝過程中，先將透鏡、間隔環等元件吸取入鏡筒內，再採用治具組裝各元件於鏡筒內之位置。The lens module usually includes a Barrel, a Holder, a lens, a spacer ring, and a filter, wherein the lens is sequentially fixed in the lens barrel along the central axis of the lens barrel. During the assembly of the lens module, the components such as the lens and the spacer ring are sucked into the lens barrel, and then the components are assembled in the lens barrel by the jig.
先前技術中，通常採用壓棒組裝透鏡與間隔環等元件 於鏡筒內之位置。該壓棒為一端設有凹槽之柱狀結構。惟，該壓棒僅針對透鏡進行組裝，當組裝間隔環或濾光片時，需更換與間隔環或濾光片相對應之壓棒，不僅難以提高鏡頭模組組裝治具之利用率或節約鏡頭模組組裝治具之材料及加工成本，而且大大降低鏡頭模組組裝之效率。In the prior art, components such as a lens and a spacer ring are usually assembled by a pressure bar. In the position inside the lens barrel. The pressure bar is a columnar structure having a groove at one end. However, the pressure bar is only assembled for the lens. When assembling the spacer ring or the filter, it is necessary to replace the pressure bar corresponding to the spacer ring or the filter, which is not only difficult to improve the utilization or saving of the lens module assembly jig. The lens module assembly fixture material and processing cost, and greatly reduce the efficiency of lens module assembly.
有鑑於此，提供一種能夠降低製造成本並提高鏡頭模組組裝效率之鏡頭模組組裝治具及組裝鏡頭模組之方法實屬必要。In view of the above, it is necessary to provide a lens module assembly jig and a method of assembling the lens module that can reduce the manufacturing cost and improve the assembly efficiency of the lens module.
一種鏡頭模組組裝治具，用於將第一光學元件與第二光學元件組裝至鏡筒內。該鏡頭模組組裝治具包括第一組裝件與第二組裝件。第一組裝件具有用於收容第二組裝件之收容孔。第一組裝件之一端具有第一配合結構，另一端具有第一組裝面。該第一組裝面用於與第一光學元件接觸以將第一光學元件組入鏡筒。第二組裝件之一端具有第二配合結構，另一端具有第二組裝面。該第二配合結構與第一配合結構相對應，用於將第二組裝件可拆卸地安裝於第一組裝件。該第二組裝面用於與第一組裝面一起與第二光學元件接觸，以將第二光學元件組入鏡筒。A lens module assembly jig for assembling a first optical element and a second optical element into a lens barrel. The lens module assembly jig includes a first assembly and a second assembly. The first assembly has a receiving hole for receiving the second assembly. One end of the first assembly has a first mating structure and the other end has a first assembly surface. The first assembly surface is for contacting the first optical element to group the first optical element into the lens barrel. One end of the second assembly has a second mating structure and the other end has a second assembly surface. The second mating structure corresponds to the first mating structure for detachably mounting the second assembly to the first assembly. The second assembly surface is for contacting the second optical component with the first assembly surface to assemble the second optical component into the lens barrel.
一種使用如上該鏡頭模組組裝治具之鏡頭模組組裝方法，包括步驟：提供第一光學元件、第二光學元件與鏡筒；使第一組裝件之第一組裝面與第一光學元件接觸，對第一組裝件施壓以將第一光學元件組入鏡筒；使第二組裝件穿 過第一組裝件之收容孔，並藉由第一配合結構與第二配合結構配合從而將第二組裝件固定於第一組裝件；使第二組裝面與第一組裝面一起與第二光學元件接觸，對第二組裝件施壓以將第二光學元件組入鏡筒。A lens module assembling method using the lens module assembly jig as above, comprising the steps of: providing a first optical component, a second optical component, and a lens barrel; contacting the first assembly surface of the first assembly with the first optical component Applying pressure to the first assembly to assemble the first optical component into the lens barrel; Passing through the receiving hole of the first assembly, and engaging the second assembly with the first mating structure to fix the second assembly to the first assembly; and the second assembly surface together with the first assembly surface and the second optical The components are in contact, and the second assembly is pressed to assemble the second optical component into the lens barrel.
相對於先前技術，該鏡頭模組組裝治具包括第一組裝件與可拆卸地結合於第一組裝件之第二組裝件，可降低該鏡頭模組組裝治具之製造成本並提高該鏡頭模組組裝治具之利用率。使用該鏡頭模組組裝治具組裝不同尺寸規格之光學元件，無需更換治具，只需將第二組裝件安裝於第一組裝件或從第一組裝件上拆卸下來，可提高鏡頭組裝效率。Compared with the prior art, the lens module assembly jig includes a first assembly member and a second assembly member detachably coupled to the first assembly member, which can reduce the manufacturing cost of the lens module assembly jig and improve the lens module. The utilization rate of the assembly jig. By using the lens module to assemble the jig to assemble optical components of different sizes, it is not necessary to replace the jig, and the second assembly is simply attached to or detached from the first assembly to improve lens assembly efficiency.
下面將結合附圖及實施例對本技術方案作進一步詳細說明。The technical solution will be further described in detail below with reference to the accompanying drawings and embodiments.
請一併參閱圖1與圖2，本技術方案第一實施例提供一種用於將第一光學元件與第二光學元件組裝至鏡筒內之鏡頭模組組裝治具10，其包括第一組裝件12與可拆卸地結合於第一組裝件12之第二組裝件14。Referring to FIG. 1 and FIG. 2 together, a first embodiment of the present technical solution provides a lens module assembly jig 10 for assembling a first optical component and a second optical component into a lens barrel, which includes a first assembly. The piece 12 is detachably coupled to the second assembly 14 of the first assembly 12.
該第一組裝件12包括依次相連接之第一配合部121、收容部122與第一組裝部123。第一配合部121為圓柱體，其遠離第一組裝部123之一端具有一用於與第二組裝件14相配合之第一配合結構124。第一配合結構124可為至少兩個凸起或凹槽。本實施例中，第一配合結構124為四個凸起，環繞第一配合部121之軸線等角度分佈於第一配合部 121之外表面。收容部122為直徑大於第一配合部121直徑之圓柱體，其用於連接相對之第一配合部121與第一組裝部123。第一組裝部123為圓柱體，用於組裝第一光學元件，且具有遠離第一配合部121之第一組裝面125。該第一組裝面125之直徑略小於鏡筒之內徑，用於與第一光學元件接觸以將第一光學元件組入鏡筒。第一組裝件12具有用於收容第二組裝件14之收容孔126，該收容孔126貫穿第一配合部121、收容部122與第一組裝部123。The first assembly 12 includes a first mating portion 121, a receiving portion 122 and a first assembly portion 123 that are sequentially connected. The first mating portion 121 is a cylinder having a first mating structure 124 for mating with the second assembly 14 away from one end of the first assembly portion 123. The first mating structure 124 can be at least two protrusions or grooves. In this embodiment, the first mating structure 124 is four protrusions, and the first mating portion is equiangularly distributed around the axis of the first mating portion 121. 121 outer surface. The receiving portion 122 is a cylinder having a diameter larger than the diameter of the first engaging portion 121 for connecting the first engaging portion 121 and the first assembling portion 123. The first assembly portion 123 is a cylinder for assembling the first optical element and has a first assembly surface 125 remote from the first mating portion 121. The first assembly surface 125 has a diameter that is slightly smaller than the inner diameter of the lens barrel for contacting the first optical element to assemble the first optical element into the lens barrel. The first assembly 12 has a receiving hole 126 for receiving the second assembly 14 . The receiving hole 126 extends through the first engaging portion 121 , the receiving portion 122 , and the first assembling portion 123 .
該第二組裝件14部分容置於收容孔126，其包括抵壓件141與抵壓桿142。抵壓件141設置於抵壓桿142之一端。抵壓件141用於與第一配合部121相配合，其為內徑略大於第一配合部121直徑之圓筒形結構，包括相連接之底壁143與圓環形側壁144。抵壓件141具有與第一配合結構124相對應之第二配合結構145，該第二配合結構145為開設於抵壓件141之側壁144之凹槽。本實施例中，第二配合結構145為四個凹槽，且每個凹槽之延伸方向與第二組裝件14之軸線均具有一定夾角，該夾角可為0－60°。第二配合結構145與第一配合結構124相卡合，從而使得第二組裝件14可方便地拆卸或結合於第一組裝件12。抵壓桿142之直徑小於收容孔126之孔徑，從而抵壓桿142可容置於收容孔126中。抵壓桿142之另一端具有第二組裝面146，該第二組裝面146用於與第一組裝面125一起與第二光學元件接觸，以將第二光學元件組入鏡筒。The second assembly 14 is partially received in the receiving hole 126 and includes a pressing member 141 and a pressing rod 142. The pressing member 141 is disposed at one end of the pressing rod 142. The pressing member 141 is adapted to cooperate with the first engaging portion 121, which is a cylindrical structure having an inner diameter slightly larger than the diameter of the first fitting portion 121, including the connected bottom wall 143 and the annular side wall 144. The pressing member 141 has a second mating structure 145 corresponding to the first mating structure 124 . The second mating structure 145 is a recess formed in the sidewall 144 of the pressing member 141 . In this embodiment, the second mating structure 145 is four recesses, and each of the recesses has an angle of extension with the axis of the second assembly member 14, and the angle may be 0-60°. The second mating structure 145 is engaged with the first mating structure 124 such that the second assembly 14 can be easily removed or bonded to the first assembly 12. The diameter of the pressing rod 142 is smaller than the diameter of the receiving hole 126, so that the pressing rod 142 can be received in the receiving hole 126. The other end of the abutment bar 142 has a second assembly face 146 for contacting the second optical component with the first assembly face 125 to assemble the second optical component into the lens barrel.
請一併參閱圖3至圖5，一種使用如上該鏡頭模組組裝 治具10組裝鏡頭模組之方法，包括步驟：第一步，提供鏡筒200、第一鏡片210、間隔片300與第二鏡片310。Please refer to FIG. 3 to FIG. 5 together, which is assembled using the lens module as above. The method of assembling the lens module by the jig 10 includes the following steps: First, the lens barrel 200, the first lens 210, the spacer 300 and the second lens 310 are provided.
鏡筒200具有一光圈孔201。第一鏡片210包括用於光學成像之第一光學部211與環繞連接該第一光學部211之第一固定部212。間隔片300為圓環形結構，其具有相連接之內側壁301與第一表面302。第二鏡片310包括用於光學成像之第二光學部311與環繞連接該第二光學部311之第二固定部312。The lens barrel 200 has a diaphragm hole 201. The first lens 210 includes a first optical portion 211 for optical imaging and a first fixing portion 212 that surrounds the first optical portion 211. The spacer 300 is a toroidal structure having interconnected inner sidewalls 301 and a first surface 302. The second lens 310 includes a second optical portion 311 for optical imaging and a second fixed portion 312 that surrounds the second optical portion 311.
第二步，請參閱圖3，將第一鏡片210放置於鏡筒200內，該第一光學部211向遠離光圈孔201之方向凸出於固定部212。使第一組裝部123之外壁與鏡筒200之內壁相對，第一組裝部123之第一組裝面125與第一鏡片210之第一固定部212相接觸，並使第一光學部211容置於收容孔126中，此時，可對第一組裝件12施壓以將第一鏡片210組入鏡筒200內合適位置。In the second step, referring to FIG. 3 , the first lens 210 is placed in the lens barrel 200 , and the first optical portion 211 protrudes from the fixing hole 212 in a direction away from the aperture hole 201 . The outer wall of the first assembly portion 123 is opposed to the inner wall of the lens barrel 200, and the first assembly surface 125 of the first assembly portion 123 is in contact with the first fixing portion 212 of the first lens 210, and the first optical portion 211 is accommodated. Placed in the receiving hole 126, at this time, the first assembly 12 can be pressed to assemble the first lens 210 into a suitable position in the lens barrel 200.
第三步，使第二組裝件14穿過第一組裝件12之收容孔126，並藉由第一配合結構124與第二配合結構145之配合將第二組裝件14固定於第一組裝件12。In the third step, the second assembly 14 is passed through the receiving hole 126 of the first assembly 12, and the second assembly 14 is fixed to the first assembly by the cooperation of the first mating structure 124 and the second mating structure 145. 12.
第四步，請一併參閱圖3與圖4，將間隔片300放置於鏡筒200內，且其第一表面302遠離光圈孔201，使第一組裝部123之第一組裝面125與第一表面302相接觸，第二組裝面146與該內側壁301相接觸。對第二組裝件14施壓以將間隔片300組入鏡筒200內合適位置，並與第一鏡片 210緊密接觸卡合。In the fourth step, referring to FIG. 3 and FIG. 4, the spacer 300 is placed in the lens barrel 200, and the first surface 302 is away from the aperture hole 201, so that the first assembly surface 125 of the first assembly portion 123 is the same. A surface 302 is in contact with the second assembly surface 146 in contact with the inner sidewall 301. Pressing the second assembly 14 to assemble the spacer 300 into the appropriate position in the lens barrel 200, and with the first lens 210 close contact with the card.
第五步，請一併參閱圖3至圖5，將第二鏡片310放置於鏡筒200內，使該第二光學部311向靠近光圈孔201之方向凸出於第二固定部312。使第一組裝部123之第一組裝面125與第二鏡片310之第二固定部312相接觸，第二組裝面146與該第二光學部311相接觸，對第二組裝件14施壓以將第二鏡片310組入鏡筒200內合適位置，並與間隔片300緊密接觸卡合。In the fifth step, referring to FIG. 3 to FIG. 5 , the second lens 310 is placed in the lens barrel 200 such that the second optical portion 311 protrudes from the second fixing portion 312 in a direction close to the aperture hole 201 . The first assembly surface 125 of the first assembly portion 123 is brought into contact with the second fixing portion 312 of the second lens 310, and the second assembly surface 146 is in contact with the second optical portion 311 to press the second assembly member 14 to The second lens 310 is assembled into a proper position in the lens barrel 200 and is in close contact with the spacer 300.
可理解，該鏡頭模組組裝治具10組裝還可用於組裝遮光片或其他與間隔片300結構類似之光學元件。It can be understood that the lens module assembly jig 10 assembly can also be used to assemble a light shielding film or other optical component similar to the structure of the spacer 300.
請參閱圖6，本技術方案第二實施例提供之鏡頭模組組裝治具20與第一實施例之鏡頭模組組裝治具10基本相同，其區別在於，鏡頭模組組裝治具20之第一組裝件22與第二組裝件24之間藉由螺紋連接。該第一配合結構224為設置於第一配合部221之外螺紋，第二配合結構245為位於抵壓件241之內螺紋，第一配合結構224與第二配合結構245相螺合以使得第二組裝件24可拆卸地結合於第一組裝件22。Referring to FIG. 6 , the lens module assembly jig 20 provided by the second embodiment of the present invention is basically the same as the lens module assembly jig 10 of the first embodiment, and the difference is that the lens module assembly jig 20 is the same. An assembly 22 and a second assembly 24 are connected by a screw. The first mating structure 224 is externally threaded on the first mating portion 221, and the second mating structure 245 is internally threaded on the pressing member 241. The first mating structure 224 is screwed with the second mating structure 245 to make the first The second assembly 24 is detachably coupled to the first assembly 22.
該鏡頭模組組裝治具包括第一組裝件與可拆卸地結合於第一組裝件之第二組裝件，可降低該鏡頭模組組裝治具之製造成本並提高該鏡頭模組組裝治具之利用率。使用該鏡頭模組組裝治具組裝不同尺寸規格之光學元件，無需更換治具，只需將第二組裝件安裝於第一組裝件或從第一組裝件上拆卸下來，可提高鏡頭組裝效率。The lens module assembly jig includes a first assembly member and a second assembly member detachably coupled to the first assembly member, which can reduce the manufacturing cost of the lens module assembly jig and improve the assembly of the lens module assembly jig. Utilization rate. By using the lens module to assemble the jig to assemble optical components of different sizes, it is not necessary to replace the jig, and the second assembly is simply attached to or detached from the first assembly to improve lens assembly efficiency.
綜上所述，本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，自不能以此限制本案之申請專利範圍。舉凡熟悉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內。In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
鏡頭模組組裝治具‧‧‧10、20Lens module assembly fixture ‧ ‧ 10, 20
第一組裝件‧‧‧12、22First assembly ‧‧‧12,22
第一配合部‧‧‧121、221First coordination department ‧‧‧121, 221
收容部‧‧‧122Containment Department ‧‧122
第一組裝部‧‧‧123First Assembly Department ‧‧‧123
第一配合結構‧‧‧124、224First coordination structure ‧‧‧124,224
第一組裝面‧‧‧125First assembly surface ‧‧‧125
收容孔‧‧‧126Containing holes ‧ ‧ 126
第二組裝件‧‧‧14、24Second assembly ‧‧14,24
抵壓件‧‧‧141、241Compressed parts ‧ ‧ 141, 241
抵壓桿‧‧‧142Resisting rod ‧ ‧ 142
底壁‧‧‧143Bottom wall ‧ ‧ 143
側壁‧‧‧144Side wall ‧‧‧144
第二配合結構‧‧‧145、245Second coordination structure ‧‧‧145,245
第二組裝面‧‧‧146Second assembly surface ‧‧‧146
鏡筒‧‧‧200Mirror ‧‧200
光圈孔‧‧‧201Aperture hole ‧‧201
第一鏡片‧‧‧210First lens ‧ ‧ 210
第一光學部‧‧‧211First Optical Department ‧‧‧211
固定部‧‧‧212Fixed Department ‧‧212
間隔片‧‧‧300Spacer ‧‧300
內側壁‧‧‧301Inner wall ‧ ‧ 301
第一表面‧‧‧302First surface ‧‧‧302
第二鏡片‧‧‧310Second lens ‧ ‧ 310
第二光學部‧‧‧311Second Optics Department ‧‧ 311
第二固定部‧‧‧312Second fixed section ‧‧ 312
圖1為本技術方案第一實施例提供之一種鏡頭模組組裝治具之分解示意圖。FIG. 1 is an exploded perspective view of a lens module assembly jig provided by a first embodiment of the present technical solution.
圖2為本技術方案第一實施例提供之鏡頭模組組裝治具之剖視圖。2 is a cross-sectional view of a lens module assembly jig provided by the first embodiment of the present technical solution.
圖3為使用本技術方案第一實施例提供之鏡頭模組組裝治具之第一組裝件組裝第一鏡片示意圖。3 is a schematic view showing the assembly of a first lens using the first assembly of the lens module assembly jig provided by the first embodiment of the present technical solution.
圖4為使用本技術方案第一實施例提供之鏡頭模組組裝治具之第一組裝件組裝間隔片示意圖。4 is a schematic view showing a first assembly assembly spacer of the lens module assembly jig provided by the first embodiment of the present technical solution.
圖5為使用本技術方案第一實施例提供之鏡頭模組組裝治具組裝第二鏡片示意圖。FIG. 5 is a schematic diagram of assembling a second lens of the lens module assembly jig provided by the first embodiment of the present technical solution.
圖6為本技術方案第二實施例提供之鏡頭模組組裝治具之剖視圖。6 is a cross-sectional view of a lens module assembly jig provided by a second embodiment of the present technology.
鏡頭模組組裝治具‧‧‧10Lens module assembly fixture ‧‧10
第一組裝件‧‧‧12First assembly ‧‧12
第一配合部‧‧‧121First Coordination Department ‧‧‧121
收容部‧‧‧122Containment Department ‧‧122
第一組裝部‧‧‧123First Assembly Department ‧‧‧123
第一配合結構‧‧‧124First coordination structure ‧‧‧124
第一組裝面‧‧‧125First assembly surface ‧‧‧125
收容孔‧‧‧126Containing holes ‧ ‧ 126
第二組裝件‧‧‧14Second assembly ‧‧14
抵壓件‧‧‧141Compression ‧‧‧141
抵壓桿‧‧‧142Resisting rod ‧ ‧ 142
底壁‧‧‧143Bottom wall ‧ ‧ 143
側壁‧‧‧144Side wall ‧‧‧144
第二配合結構‧‧‧145Second coordination structure ‧ ‧ 145
第二組裝面‧‧‧146Second assembly surface ‧‧‧146
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097146255A TWI454775B (en) | 2008-11-28 | 2008-11-28 | Assembling apparatus for lens module and assembling method for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW097146255A TWI454775B (en) | 2008-11-28 | 2008-11-28 | Assembling apparatus for lens module and assembling method for the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201020588A TW201020588A (en) | 2010-06-01 |
| TWI454775B true TWI454775B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW097146255A TWI454775B (en) | 2008-11-28 | 2008-11-28 | Assembling apparatus for lens module and assembling method for the same |
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| Country | Link |
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| TW (1) | TWI454775B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144885A (en) * | 2006-09-15 | 2008-03-19 | 鸿富锦精密工业（深圳）有限公司 | Suction means and lens module assembling apparatus |
| TW200827808A (en) * | 2006-12-29 | 2008-07-01 | Hon Hai Prec Ind Co Ltd | Assembling lens jig, assembling system having same and assembling method |
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2008
- 2008-11-28 TW TW097146255A patent/TWI454775B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144885A (en) * | 2006-09-15 | 2008-03-19 | 鸿富锦精密工业（深圳）有限公司 | Suction means and lens module assembling apparatus |
| TW200827808A (en) * | 2006-12-29 | 2008-07-01 | Hon Hai Prec Ind Co Ltd | Assembling lens jig, assembling system having same and assembling method |
Also Published As
| Publication number | Publication date |
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| TW201020588A (en) | 2010-06-01 |
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