TWI509278B

TWI509278B - Lens structure

Info

Publication number: TWI509278B
Application number: TW100106533A
Authority: TW
Inventors: Chien Nan Lai
Original assignee: Hon Hai Prec Ind Co Ltd
Priority date: 2011-02-25
Filing date: 2011-02-25
Publication date: 2015-11-21
Also published as: TW201235691A

Description

鏡頭結構Lens structure

本發明涉及一種鏡頭結構。The invention relates to a lens structure.

目前掌上型電子裝置已經愈來愈普及，而且體積是愈來愈輕、薄、短、小。一般來說，在掌上型電子裝置上配置取像模組已成為標準配備，為配合其形體上的設計該取像模組也必須小型化，其中該取像模組中的鏡頭內除了鏡片的組裝以外，也將濾光片設置在鏡頭上，用以縮減空間。目前該濾光片的設置，是在鏡片組裝於該鏡頭的鏡筒內部後，需要在最後一鏡片的四週緣以膠體黏著固定，而在該膠體設置尚未固化前將該濾光片設置在該鏡片後方，從而通過該膠體的固化使該濾光片固定於鏡頭上。但是，由於取像模組的小型化，在鏡頭內的鏡片週緣設置的固定用膠體，其膠體用量必須受到限制，以避免用量過大影響該鏡片的光學設計功能。該受限制的膠體用量，常造成黏著強度不足，無法有效固定該濾光片，需要再透過補膠的作業來固定。從而使得製程複雜、成本提高。At present, handheld electronic devices have become more and more popular, and the volume is getting lighter, thinner, shorter, and smaller. In general, the configuration of the image capturing module on the palm-sized electronic device has become a standard device. In order to match the design of the shape, the image capturing module must also be miniaturized, wherein the lens in the image capturing module is in addition to the lens. In addition to the assembly, a filter is also placed on the lens to reduce the space. At present, the filter is disposed after the lens is assembled inside the lens barrel of the lens, and needs to be adhered to the periphery of the last lens by a gel, and the filter is disposed before the gel is not cured. Behind the lens, the filter is fixed to the lens by curing of the gel. However, due to the miniaturization of the image taking module, the amount of colloid used for the fixing colloid disposed on the periphery of the lens in the lens must be limited to avoid excessive use of the optical design function of the lens. The limited amount of colloidal material often causes insufficient adhesive strength, and the filter cannot be effectively fixed, and needs to be fixed by the operation of the glue. This makes the process complex and costly.

有鑒於此，有必要提供一種鏡頭結構,其能方便、快速地固定鏡頭內的濾光片。In view of this, it is necessary to provide a lens structure that can easily and quickly fix the filter in the lens.

本發明提供一種鏡頭結構，其包括一鏡筒、至少一鏡片以及一濾光片。該鏡筒具有用以容置該鏡片的一鏡筒容室，該鏡筒容室具有一半封閉端以及一開口端。該鏡片設置在鄰近該半封閉端的位置，該濾光片設置在鄰近該開口端位置。該濾光片的週緣具有倒角，該倒角與該鏡筒容室的內壁之間形成一點膠空間。The invention provides a lens structure comprising a lens barrel, at least one lens and a filter. The lens barrel has a barrel chamber for receiving the lens, the barrel chamber having a half closed end and an open end. The lens is disposed adjacent to the semi-closed end, the filter being disposed adjacent the open end position. The periphery of the filter has a chamfer, and the chamfer forms a little glue space with the inner wall of the barrel chamber.

上述的鏡頭結構，該濾光片週緣的倒角與該鏡筒容室內壁形成的點膠空間，可提供足夠的黏固用膠體設置，並且靠近該鏡筒容室的開口端，使該濾光片在與該鏡頭組裝時的點膠製程方便、黏合穩固，可以有效節省工時。In the above lens structure, the chamfering of the periphery of the filter and the dispensing space formed by the inner wall of the barrel can provide sufficient adhesive setting and close to the open end of the barrel, so that the filter When the light sheet is assembled with the lens, the dispensing process is convenient, and the bonding is stable, which can effectively save man-hours.

下面將結合附圖對本發明作一具體介紹。The present invention will be specifically described below with reference to the accompanying drawings.

請參閱圖1，本發明鏡頭結構一實施例的組合剖視圖，該鏡頭結構100包括一鏡筒10、至少一鏡片20以及一濾光片30。Referring to FIG. 1, a cross-sectional view of an embodiment of a lens structure of the present invention includes a lens barrel 10, at least one lens 20, and a filter 30.

該鏡筒10具有一鏡筒容室102用以容置該鏡片20，該鏡筒容室102的筒體為一中空的圓柱體，其筒體的兩端分別包括一半封閉端104以及一開口端106。該半封閉端104的中央開設有一入射孔1042用以使光線由此入射孔1042射入鏡筒容室102中。該開口端106用以使鏡片20由此置入該鏡筒容室102內。該鏡筒10的外緣面上具有外螺紋108設置，該外螺紋108用以與鏡頭座（圖中未標示）具有的內螺紋配合組接構成鏡頭模組。該鏡片20自該開口端106設置入該鏡筒容室102後，將緊鄰在該半封閉端104的位置。該濾光片30則同樣自該開口端106設置入該鏡筒容室102，並設置在該鏡片20後端同時鄰近在該開口端106位置。該鏡筒容室102的半封閉端104與開口端106之間的內部高度，對應該鏡頭結構100光學設計的鏡片20或是鏡片20組厚度，使該鏡片20或是鏡片20組完整地容納於該鏡筒容室102內部。該鏡頭結構100的小型化設計，使該鏡片20或是鏡片20組與該濾光片30同時設置於該鏡筒容室102內部。本實施例中，該光學設計的鏡片20組具有三個鏡片20。該三個鏡片20通過該鏡筒容室102的開口端106使該鏡片20設置於該鏡筒10內，並且由該鏡筒容室102的半封閉端104排列至該開口端106處。該鏡片20後端緊接著設置該濾光片30於該開口端106處。該濾光片30的週緣302與該鏡筒容室102的內壁1022相對，並且具有一倒角304。該倒角304在該週緣302的壁面上形成一傾斜面，該倒角304傾斜面自該濾光片30面向該半封閉端104的內側向著相對該開口端106的外側傾斜。即，該倒角304傾斜面使該濾光片30外側面(朝向該開口端106處) 的外緣直徑d小於其內側面(朝向該半封閉端104處) 的外緣直徑D。該倒角304傾斜面與相對的該鏡筒容室102的內壁1022間形成一點膠空間S(如圖2的局部放大圖所示)，該點膠空間S是為一槽型的空間，該槽型空間用以提供黏合膠體(圖中未標示)設置，使該濾光片30黏合固定於該鏡筒10的開口端106處。該點膠空間S增大該濾光片30與該鏡筒容室102內壁1022的接觸面積，使該濾光片30的黏合更加穩固。該點膠空間S形成在該鏡筒容室102的開口端106處，方便點膠機的點膠製程運作，可環繞該濾光片30的週邊一次整圈完成黏合膠體G的點膠作業(如圖3所標示)，不需再作任何的補膠運作。該點膠空間S可容納適量的黏合膠體G，不會造成溢膠情況和需要人工插拭的缺失，達到有效節省工時的良好使用效能。The lens barrel 10 has a barrel chamber 102 for accommodating the lens 20. The barrel of the barrel chamber 102 is a hollow cylinder, and the two ends of the barrel respectively include a half closed end 104 and an opening. End 106. An entrance hole 1042 is defined in the center of the semi-closed end 104 for the light to enter the lens barrel 102 from the entrance hole 1042. The open end 106 is used to place the lens 20 therein into the barrel chamber 102. The outer surface of the lens barrel 10 is provided with an external thread 108 for engaging with the internal thread of the lens holder (not shown) to form a lens module. The lens 20 is disposed adjacent to the semi-closed end 104 from the open end 106 into the barrel chamber 102. The filter 30 is also disposed from the open end 106 into the barrel chamber 102 and is disposed at the rear end of the lens 20 while adjacent the open end 106. The inner height between the semi-closed end 104 and the open end 106 of the barrel chamber 102 corresponds to the optical thickness of the lens 20 or the lens 20 of the lens structure 100, so that the lens 20 or the lens 20 is completely accommodated. Inside the barrel chamber 102. The lens structure 100 is miniaturized such that the lens 20 or the lens 20 and the filter 30 are disposed inside the lens barrel 102 at the same time. In this embodiment, the optically designed lens 20 set has three lenses 20. The three lenses 20 are disposed within the barrel 10 through the open end 106 of the barrel chamber 102 and are routed from the semi-closed end 104 of the barrel chamber 102 to the open end 106. The rear end of the lens 20 is followed by the filter 30 at the open end 106. The peripheral edge 302 of the filter 30 is opposite the inner wall 1022 of the barrel chamber 102 and has a chamfer 304. The chamfer 304 forms an inclined surface on the wall surface of the peripheral edge 302. The inclined surface of the chamfer 304 is inclined from the inner side of the filter 30 facing the semi-closed end 104 toward the outer side opposite the open end 106. That is, the chamfered surface of the chamfer 304 is such that the outer diameter d of the outer side surface (toward the open end 106) of the filter 30 is smaller than the outer diameter D of the inner side surface (toward the semi-closed end 104). A gap space S is formed between the inclined surface of the chamfer 304 and the inner wall 1022 of the opposite barrel chamber 102 (as shown in a partially enlarged view of FIG. 2), and the dispensing space S is a slotted space. The slotted space is configured to provide a bonding glue (not shown), and the filter 30 is adhesively fixed to the open end 106 of the lens barrel 10. The dispensing space S increases the contact area between the filter 30 and the inner wall 1022 of the barrel chamber 102, so that the bonding of the filter 30 is more stable. The dispensing space S is formed at the open end 106 of the barrel chamber 102, which facilitates the dispensing process of the dispenser, and can complete the dispensing operation of the adhesive colloid G once around the periphery of the filter 30. As indicated in Figure 3, no additional glue operation is required. The dispensing space S can accommodate an appropriate amount of the adhesive colloid G, which does not cause the overflow of the glue and the need for manual insertion, thereby achieving good use efficiency and saving labor.

綜上，本發明鏡頭結構的該濾光片30的週緣具有倒角304設置，該倒角304與該鏡筒容室102的內壁1022形成的該點膠空間S，方便該黏合膠體G的設置以及點膠的製程運作，從而能使該濾光片30的黏合穩固，且可有效節省工時。In summary, the periphery of the filter 30 of the lens structure of the present invention has a chamfer 304, and the chamfer 304 and the dispensing space S formed by the inner wall 1022 of the barrel chamber 102 facilitate the bonding of the colloid G. The setting and dispensing process operation can stabilize the bonding of the filter 30 and save man-hours.

應該指出，上述實施方式僅為本發明的較佳實施方式，本領域技術人員還可在本發明精神內做其他變化。這些依據本發明精神所做的變化，都應包含在本發明所要求保護的範圍之內。It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and those skilled in the art can make other changes within the spirit of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention.

100．．．鏡頭結構100. . . Lens structure

10．．．鏡筒10. . . Lens barrel

102．．．鏡筒容室102. . . Barrel chamber

1022．．．內壁1022. . . Inner wall

104．．．半封閉端104. . . Semi-closed end

1042．．．入射孔1042. . . Incident hole

106．．．開口端106. . . Open end

108．．．外螺紋108. . . External thread

20．．．鏡片20. . . lens

30．．．濾光片30. . . Filter

302．．．週緣302. . . Periphery

304．．．倒角304. . . Chamfer

D、d．．．外緣直徑D, d. . . Outer diameter

G．．．黏合膠體G. . . Adhesive colloid

S．．．點膠空間S. . . Dispensing space

圖1係本發明鏡頭結構一實施例的組合剖視圖。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a combination of an embodiment of a lens structure of the present invention.

圖2係圖1鏡頭結構中II的局部放大圖。Figure 2 is a partial enlarged view of II in the lens structure of Figure 1.

圖3係圖1鏡頭結構的立體示意圖。3 is a perspective view of the lens structure of FIG. 1.

100．．．鏡頭結構100. . . Lens structure

10．．．鏡筒10. . . Lens barrel

102．．．鏡筒容室102. . . Barrel chamber

1022．．．內壁1022. . . Inner wall

104．．．半封閉端104. . . Semi-closed end

1042．．．入射孔1042. . . Incident hole

106．．．開口端106. . . Open end

108．．．外螺紋108. . . External thread

20．．．鏡片20. . . lens

30．．．濾光片30. . . Filter

302．．．週緣302. . . Periphery

304．．．倒角304. . . Chamfer

D、d．．．外緣直徑D, d. . . Outer diameter

Claims

一種鏡頭結構，其包括一鏡筒、至少一鏡片以及一濾光片，該鏡筒具有用以容置該鏡片的一鏡筒容室，該鏡筒容室具有一半封閉端以及一開口端，該鏡片設置在鄰近該半封閉端的位置，該濾光片設置在鄰近該開口端位置，該濾光片的週緣具有倒角，該倒角與該鏡筒容室的內壁之間形成一點膠空間。A lens structure comprising a lens barrel, at least one lens and a filter, the lens barrel having a lens barrel chamber for accommodating the lens, the lens barrel chamber having a half closed end and an open end The lens is disposed adjacent to the semi-closed end, the filter is disposed adjacent to the open end position, the periphery of the filter has a chamfer, and the chamfer forms a point with the inner wall of the barrel chamber Plastic space.

如申請專利範圍第1項所述的鏡頭結構，其中，該鏡筒容室的筒體為一中空的圓柱體，在其半封閉端中央開設有一入射孔，該半封閉端的另端為該開口端。The lens structure according to claim 1, wherein the barrel of the barrel chamber is a hollow cylinder, and an entrance hole is defined in a center of the semi-closed end, and the other end of the semi-closed end is the opening. end.

如申請專利範圍第1項所述的鏡頭結構，其中，該濾光片的週緣與該鏡筒容室的內壁相對，該週緣上的該倒角使其週緣壁面上形成一傾斜面。The lens structure according to claim 1, wherein the periphery of the filter is opposite to the inner wall of the barrel chamber, and the chamfer on the circumference forms an inclined surface on the peripheral wall surface.

如申請專利範圍第3項所述的鏡頭結構，其中，該傾斜面自該濾光片面向該半封閉端的內側向著相對該開口端的外側傾斜。The lens structure according to claim 3, wherein the inclined surface is inclined from an inner side of the filter facing the semi-closed end toward an outer side opposite to the open end.

如申請專利範圍第4項所述的鏡頭結構，其中，該傾斜面使該濾光片外側面的外緣直徑小於其內側面的外緣直徑。The lens structure of claim 4, wherein the inclined surface has a diameter smaller than an outer edge of the inner side of the filter.

如申請專利範圍第1項所述的鏡頭結構，其中，該點膠空間是為一槽型的空間，該槽型空間用以提供黏合膠體設置。The lens structure of claim 1, wherein the dispensing space is a slotted space for providing an adhesive colloid setting.

如申請專利範圍第1項所述的鏡頭結構，其中，該點膠空間形成在該鏡筒容室的開口端處。The lens structure of claim 1, wherein the dispensing space is formed at an open end of the barrel chamber.