TWI406024B - Lens module assembling apparatus - Google Patents

Abstract

The present invention relates to an assembling apparatus. The assembling apparatus is used to assemble an optical component into a barrel. The assembling apparatus includes a handle and a pushing pole detachably connecting with the handle. The handle has an operating portion for operating the assembling apparatus and a connecting portion. The pushing pole has a setting portion connecting with the connecting portion and a pushing portion for pushing the optical component. The width of the pushing portion is less than or equal to an internal diameter of the barrel. The assembling apparatus includes a handle and a pushing pole detachably connecting with the handle. When assembling optical components of different sizes, the pushing pole is changed but the handle needn't to be changed. Therefore, efficiency of the assembling apparatus is enhanced and cost of the assembling apparatus is decreased.

Description

Lens module assembly fixture

The invention relates to a lens module assembly jig.

In recent years, with the development of multimedia technology, the application range of lens modules has become wider and wider, such as in electronic products such as digital cameras, video cameras, and mobile phones with camera functions. People are pursuing miniaturization of digital cameras, camcorders, and mobile phones with camera functions. At the same time, they have put forward higher requirements on the image quality of the objects they shoot, that is, they want the image of the object to be clear, and the image quality of the object. It depends largely 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 precise to increase the probability of alignment of the optical axis, thereby improving the imaging quality of the lens module.

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 nozzle sucks the lens from the lens tray and loads it into the lens barrel, and then assembles the lens into the lens barrel by using the jig. position.

In the prior art, a pressure bar is usually used to assemble the position of the lens in the lens barrel. The pressure bar is a columnar structure having a groove at one end. However, the pressure bar is only assembled for a lens of one size. When assembling a lens of another size, it is necessary to replace the pressure bar corresponding to the specifications of the assembled lens, so it is difficult to improve the utilization and saving of the assembly jig. The material and processing cost of the jig are assembled, and it is difficult to reduce the manufacturing cost of the assembly jig.

In view of this, it is necessary to provide a lens module assembly jig that can improve the utilization rate and reduce the manufacturing cost.

A lens module assembly jig for assembling an optical component into a lens barrel, wherein the assembly fixture includes a handle and a ejector detachably coupled to the handle, the handle being provided with a handle for operating the assembly An operating portion of the jig and a connecting portion, the jack is provided with a mounting portion connected to the connecting portion, and a pushing top for pushing the optical component, the width of the pushing top being less than or equal to the inside of the lens barrel path.

Compared with the prior art, the lens module assembly jig includes a handle and a ejector detachably coupled to the handle. When assembling lenses of different sizes, only the ejector needs to be replaced without replacing the handle. , thereby improving the utilization rate of the assembly jig and reducing the manufacturing cost of the lens module assembly jig.

10‧‧‧Assembled fixtures

11‧‧‧ lens

112‧‧‧Responsible Department

114‧‧‧Optical Department

12‧‧‧handle

122‧‧‧Operation Department

1222‧‧‧ Groove

124‧‧‧Connecting Department

1242, 1448‧‧‧ outer wall

1244‧‧‧ external thread

13‧‧‧Mirror tube

131‧‧‧ gap

14‧‧‧Pole

142‧‧‧Installation Department

1422‧‧‧Threaded hole

144‧‧‧ push top

1442‧‧‧ 容部

1444‧‧‧Exhaust through hole

1445‧‧‧Export

1446‧‧‧ pushed top surface

1 is a cross-sectional view of a lens module assembly jig provided by an embodiment of the present invention.

2 is a cross-sectional view showing a lens module assembly jig according to an embodiment of the present invention when a lens is assembled into a correct position in the lens barrel.

The invention will be further described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1 , which is a lens module assembly jig 10 for assembling a lens 11 into a lens barrel 13 (shown in FIG. 2 ), which includes: a handle 12 and a Removably attached to the ram 14 of the handle 12.

The handle 12 is provided with an operating portion 122 for operating the assembly jig 10 and a connecting portion 124. The outer wall 1242 of the connecting portion 124 is provided with an external thread 1244.

Preferably, the operating portion 122 of the handle 12 is provided with a plurality of grooves 1222 for holding. In order to achieve the best effect of loading the lens 11 into the lens barrel 13, the operator holds the groove 1222 to keep the assembly jig 10 stable and vertically downward.

The ejector pin 14 is provided with a mounting portion 142 connected to the connecting portion 124 of the handle 12. The mounting portion 142 is provided with a threaded hole 1422. The internal thread of the threaded hole 1422 is threadedly engaged with the connecting portion 124 to achieve the ejector pin. The connection between the jack 14 and the handle 12. It can be understood that the connection between the mounting portion 142 of the ram 14 and the connecting portion 122 of the handle 12 can also be such that the connecting portion 124 is provided with a threaded hole, and the outer wall of the mounting portion 142 is provided with an external thread. In addition, the connection portion 142 of the jack 14 and the connecting portion 122 of the handle 12 may be connected by other means, such as a snap connection.

The jack 14 is provided with a push top 144 for pushing the lens 11 The width of the 144 is less than or equal to the inner diameter of the lens barrel 13, and the bottom end of the push top 144 is provided with an ejector surface 1446. The lens 11 is generally a plastic lens comprising a centrally located optical portion 114 and a bearing portion 112 surrounding the optical portion 114. The bearing portion 112 abuts against a boss at the bottom of the lens barrel 13 to carry the lens 11. During assembly, the operator holds the recess 1222 of the handle 12 and presses down so that the push top 144 enters the lens barrel 13, and the push surface 1446 pushes the bearing portion 112 of the lens 11, thereby The lens 11 is in the correct position within the lens barrel 13. The size of the push top 144 varies depending on the size of the lens 11. It can be understood that when the size specification of the lens 11 is increased, the size specification of the push top 144 is correspondingly increased; when the size of the lens 11 is reduced, the size specification of the push top 144 is correspondingly reduced.

Preferably, the bottom end of the push top 144 is provided with a receiving portion 1442. The accommodating portion 1442 is configured to receive the optical portion 114 to prevent the push top 144 of the ram 14 from contacting the optical portion 114 during assembly, thereby avoiding affecting the optical performance of the lens 11.

Referring to FIG. 2 , the assembly jig 10 can be further improved. For example, at least one exhaust through hole 1444 is defined in the push top 144 of the jack 14 , and the outlet 1445 of the exhaust through hole 1444 is disposed on the push top 144 . Outer wall 1448. When the width of the push top 144 is smaller than the inner diameter of the lens barrel 13, a gap 131 is formed between the push top 144 and the lens barrel 13, and the exhaust through hole 1444 is connected to the receiving portion 1442 and the gap 131. The gas in the accommodating portion 1442 is excluded from the outside of the ejector portion 144. When the lens 11 is assembled to the correct position in the lens barrel 13, the gas pressure on the upper and lower surfaces of the lens 11 can be made the same. To ensure that the penetration The accuracy of the position of the mirror 11 in the lens barrel and the imaging quality of the lens module. In addition, the exhaust through hole may extend from the receiving portion 1442 to the upper portion of the push top portion 144, and the exhaust through hole 1444 communicates with the receiving portion 1442 and an outer space of the lens barrel 13 when When the width of the push top 144 is equal to the inner diameter of the lens barrel 13, the exhaust through hole may also exclude the gas in the receiving portion 1442 from the outside of the push top 144.

In this embodiment, the material of the handle 12 and the ejector 14 is a plastic steel material.

The assembly fixture 10 includes a handle 12 and a ram 14 detachably coupled to the handle 12. When assembling lenses of different sizes, only the ram 14 needs to be replaced without replacing the handle 12, thereby The utilization rate of the assembly jig 10 is increased and the manufacturing cost of the assembly jig 10 is reduced. In addition, the assembly jig 10 has the advantages of easy installation, high assembly efficiency, and high assembly precision.

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.

10‧‧‧Assembled fixtures

12‧‧‧handle

122‧‧‧Operation Department

1222‧‧‧ Groove

124‧‧‧Connecting Department

1242‧‧‧ outer wall

1244‧‧‧ external thread

14‧‧‧Pole

142‧‧‧Installation Department

1422‧‧‧Threaded hole

144‧‧‧ push top

1442‧‧‧ 容部

1446‧‧‧ pushed top surface

Claims (7)

A lens module assembly jig for assembling an optical component into a lens barrel, the improvement comprising: the assembly fixture comprising a handle and a ejector detachably coupled to the handle, the handle being provided for operation An operating portion of the assembly jig and a connecting portion, the jack is provided with a mounting portion connected to the connecting portion, and a push top for pushing the optical component, the width of the push top is less than or equal to the lens barrel The inner diameter. The lens module assembly jig according to claim 1, wherein the bottom end of the push top is provided with a top surface, and the optical element is provided with a bearing portion for bearing, the top surface is used for To push the abutment. The lens module assembly jig according to the first aspect of the invention, wherein the bottom end of the push top is provided with a receiving portion, and the optical component is provided with an optical portion for transmitting light, and the receiving portion is used for The housing is housed in the optical unit. The lens module assembly jig according to claim 3, wherein the push top is provided with at least one exhaust through hole, and the exhaust through hole communicates with the receiving portion, and the exhaust through hole An outlet is provided on the outer wall of the push top to exclude gas in the housing from the outside of the push top. The lens module assembly jig according to claim 1, wherein the operation portion of the handle is provided with a plurality of grooves for holding. The lens module assembly jig according to the first aspect of the invention, wherein the connection between the mounting portion of the jack and the connecting portion of the handle is a screw connection or a snap connection. The lens module assembly jig according to claim 1, wherein the material of the handle and the ejector is a plastic steel material.