TW200538779A - Stucture and method for fixing a camera module - Google Patents

Abstract

Stucture and method for fixing a camera module. Such stuctural invent for fixing a camera module includes a lens barrel and a lens holder. There is a groove for adding glue and screw thread in the outside wall of the lens barrel. And there are plural little holes in the around wall of the lens holder and screw thread inside of the lens holder. Such method for fixing a camera module includes following steps: first move the camera module into the lens holder, then fixing the camera module up to the lens holder in advance by adding UV glue in the plural little holes in the around wall of the lens holder, finally the lens barrel should be fixuped by using thermal curing glue in the groove of the conterminous part of the top of the lens holder and the lens barrel.

Description

200538779 V. Description of the invention (1) [Technical field to which the new type belongs] The present invention relates to a lens lens module fixing structure and method applied to various cameras or optical instruments. [Previous technology] At present, the lens module fixing structure used in the camera or optical instruments in the industry is mainly a glue fixing structure. 10 Please refer to the first figure and the second figure. The continuation structure includes a lens module u and a lens holder. 12. The lens module n is composed of a mirror 111 and a plurality of lenses 112. There are threads on the outer wall of the lens barrel U1 and the inner wall of the lens holder 12, and the lens module 丨 i is connected by the thread, and then the lens mu of the lens module i 丨Dispensing and fixing at the connection with the upper end of the lens holder 12. This method is to first screw the lens 先, and screw it into the lens holder through the screw thread, and adjust the optical effect through the thread. When the optical effect is the best, then the glue is fixed on the top of the lens holder 12 and the lens tube ⑴. However, the application of this method will use the following UV glue (Ultraviolet glue) to glue the glue, then the ultraviolet light can not shine into the joint between the lens barrel and the lens seat, ^ can make Ultraviolet glue, that is, UV glue ) Completely cured, so as to achieve the expected fixed effect; if heat curing glue is used, the G position will be misaligned during heating, and the position of the lens module is easily modified after curing, resulting in a decline in mass production and manufacturing. Increased costs. The shortcomings of Yun Yu's known technology above, provide a kind of fixed focus position with better strength, and apply Fan Yuanguang's lens module fixing structure and > 7 is always necessary. [New content] The object of the present invention is to provide an accurate and precise focusing position and a structure

Page 5 200538779 V. Description of the invention (2) Simple lens module fixing structure. The purpose is to provide a method for fixing the focusing position accurately and adhering the object of the present invention. The fixed structure includes a number of lenses at the lens barrel head mount and the mirror position. After the method is fixed, the lens is fixed to the lens module with a good strength in the lens dispensing tank. The lens module and lens holder are fixed, including the lens tube and the lens holder. The following steps are included: firstly, a plurality of small heads are mounted on the peripheral wall of the lens holder, and finally, the lens module of the present invention is fixed with a thermosetting adhesive on the lens holder for a full circle, wherein the lens module is composed of a lens barrel and a lens; The inner wall of the seat is respectively threaded with a circular dispensing groove, and a number of small holes in the mirror are used to pre-define the lens module fixed head module of the present invention into the lens seat. UV glue is used for the holes. The ring structure of the joint between the upper end of the lens module and the lens barrel is fixed in advance. The lens module fixing structure of the present invention can avoid the misalignment of the focus position in the prior art by opening small holes in the peripheral wall of the lens holder. And the structure is simple and easy to implement. Compared with the conventional lens module fixing method, the lens module fixing method of the present invention uses ultra glue (UV glue) as a predetermined position, thereby ensuring the accurate fixation of the focusing position and improving the adhesion strength. Improved product quality

the amount. [Embodiment] Please refer to the third, fourth, and fifth drawings. The lens module fixing structure 20 of the present invention includes a lens module 21 and a lens holder 22, where the lens module 21 includes a mirror 211 and a plurality of lenses 212. Etc., the lens holder 22 includes a peripheral wall

200538779 V. Description of the invention (3) (unlabeled), a certain length of thread (not labeled) is tapped on the outer wall of the lens barrel 2 11 and the inner wall of the lens holder 2 2, and the outer wall of the lens barrel 2 1 1 has a circular dispensing groove 2 1 3 'The annular dispensing tank 2 1 3 is mainly used to contain the thermal curing glue during the final thermal curing treatment, so that the thermal curing glue can fully contact the lens barrel 2 丨 1 and the lens holder 22' so as to exert better adhesion. Effect, in addition, a plurality of small holes 2 2 1 are formed in the circumferential wall of the lens holder 22 that is connected with the lens barrel 211, usually four, and are symmetrically distributed on the circumferential wall of the lens holder 22, which is mainly used for ordering glue ( llltraviolet g 1 ue 'UV glue' can be fully irradiated when pre-positioning, so that UV glue (ultraviolet glue) can be completely cured. ^ The method for fixing a lens module of the present invention includes the following steps: firstly screw a lens $ 211 into a predetermined length in the lens holder 22 by threads to optimize the optical effect of the lens module, and then a plurality of lenses on the peripheral wall of the lens holder 22 The ultra-violet glue (ultraviolet glue) is coated in the small hole 221, and then the ultraviolet glue (ultraviolet glue) is completely cured by using ultraviolet light, and the lens module 21 is fixed in advance to the lens holder. 22, and finally, a heat curing adhesive is used to fix the entire circle in the dispensing groove 213 where the upper end of the lens holder 22 is connected to the lens barrel 2Π. /

* ,,, shells;, :: The lens module fixing structure of the present invention can avoid the prior art by using UV glue (ultraviolet glue) to pre-position the small holes in the peripheral wall of the lens holder. Occurrence of misalignment of focus position, and simple, easy to realize. Compared with the conventional lens module fixing method, the method of fixing the lens module of the present invention has a fixed focus position and good adhesion strength, thereby improving product quality. also

200538779 V. Description of the invention (4) It can be understood that the thread of the outer wall of the lens barrel 211 and the inner wall of the lens holder 22 of the lens module fixing structure 2 of the present invention can be omitted, and the lens module is completely made of UV glue (ultraviolet glue, that is, ultraviolet light). Glue) and heat-curing glue to fix. In addition, the ring-shaped dispensing groove 213 on the lens barrel 21 1 of the lens module fixing structure 20 of the present invention can also be omitted, and the entire position of the lens barrel 211 and the lens holder is fixed by using a thermosetting adhesive. To sum up, the present invention complies with the application for an invention. However, the above-mentioned ones are only for the purpose of clarity and are not based on the above-mentioned embodiments, which are made by the aid of the present invention in accordance with the spirit of the present invention. The patent requirements are clarified, and the preferred embodiment of the present invention is proposed in accordance with the law. This limitation, for example, any modification or change of effect by those skilled in the art of this case should be covered by

200538779 Schematic description [Schematic description] The first diagram is a perspective view of the fixed structure of the lens module of the conventional technology. The second figure is a cross-sectional view of the conventional lens module fixing structure taken along the line π-Π of the first figure. The third figure is a perspective view of the fixing structure of the lens module of the present invention. The fourth figure is a sectional view of the lens module fixing structure of the present invention taken along the line IV-IV of the third figure. The fifth figure is a perspective view of a lens holder of the lens module fixing structure of the present invention. [Description of main component symbols] Dispensing fixing structure 10 Lens module 11 Lens mount 12 Mirror with 111 lens 112 Lens module fixing structure 20 Lens module 21 Lens mount 22 Jhiu Mirror 211 Lens 212 Dispensing groove 213 Small hole 221

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Claims (1)

200538779 VI. Patent application Lens module fixing structure, which includes: The lens module is composed of a lens barrel and a lens, and the lens is arranged in the lens barrel; a lens holder includes a circumferential wall; Embedded in the lens holder, at least one hole is not formed in the peripheral wall of the lens holder. 2 · The lens module fixing structure according to item 1 of the scope of patent application, wherein the inner wall of the lens holder is threaded. 3 · The lens module fixing structure as described in item 1 of the patent claim, wherein the outer wall of the lens barrel is provided with a thread and an annular dispensing groove. 4 · The lens module fixing structure according to item 3 of the scope of the patent application, wherein the% -shaped dispensing groove is located at the upper end of the outer wall of the lens barrel and is connected with the thread. • The lens module fixing structure according to item 1 of the scope of patent application, wherein a UV glue (UV glue) is spotted in a hole on the peripheral wall of the lens holder. A method for fixing a lens module, which includes the following steps: A lens module and a lens holder are provided, the lens module is composed of a lens barrel and a lens, and the lens holder includes a peripheral wall, and one Xihan put the lens barrel into the lens mount; apply ϋν glue (ultraviolet glue) to the holes on the peripheral wall of the lens mount; irradiate u V glue (ultraviolet rays) with ultraviolet light; fix the UV glue (UV glue) in advance ) After the curing is completed, the lens module can be mounted on the lens mount; Finally, heat curing 200538779 is added to the glue tank at the joint between the upper end of the lens mount and the lens barrel. 7. The method for fixing a lens module according to item 6 of the scope of patent application, wherein the outer wall of the lens barrel has a certain length of external threads. 8. The method for fixing a lens module according to item 7 of the scope of patent application, wherein the dispensing tank is provided on the outer wall of the lens barrel. 9. The method for fixing a lens module according to item 6 of the scope of the patent application, wherein the holes are plural and are symmetrically distributed on the peripheral wall of the lens holder. 1Η1 · Ι p.11