TWI417592B - Apparatus and method for assembling lens modules - Google Patents

Description

Lens module assembly device and assembly method

The present invention relates to a lens module assembly device and an assembly method for incorporating an optical component group into a lens barrel.

With the development of camera technology, the lens module has been widely used in various types of camera devices. The combination of the lens module and various portable electronic devices such as mobile phones and computers has been favored by many consumers.

The lens module generally includes a lens, a lens barrel, a filter, and a spacer member for spacing the lens and the filter, such as a gasket. During the assembly of the lens module, components such as the lens, the filter, and the spacer are usually loaded into the lens barrel in a certain order, and then the lens barrel is screwed into the lens holder to assemble a complete lens module.

During assembly of the lens module, it is generally required to align the optical component with the lens barrel and then assemble the optical component into the lens barrel to avoid collision between the optical component and the lens barrel. abrasion. In order to ensure the assembly quality, the assembly of the lens module is usually manually assembled. However, in general, the manual assembly method uses the operator to directly visually observe the positional relationship between the optical element and the lens barrel, and then adjust the optical position. The element is aligned with the barrel while the optical element set is loaded into the barrel. Since the general optical components and the structure of the lens barrel are very small, it is easy to make direct operation for a long time. The author produces eye fatigue, which has a high probability of deviation between the lens barrel and the optical component during the assembly process, which is not conducive to improving labor productivity.

In view of the above, it is necessary to provide a lens module assembly device and an assembly method for ensuring that the optical element is aligned with the lens barrel and then the optical element is screwed into the lens barrel.

A lens module assembly device and an assembly method for accurately assembling an optical component into a lens barrel will be described below with reference to specific embodiments, which can achieve better lens module assembly accuracy.

A lens module assembly device for assembling an optical component into a lens barrel, the lens module assembly device comprising: a holding unit for holding the lens barrel; and a clamping unit for clamping the An optical amplifying unit disposed on a side of the holding unit for optically amplifying the lens barrel and the optical element held by the holding unit for observation; and a linear sliding rail, the optical amplifying unit It is disposed on the linear slide rail and can slide up and down along the extending direction of the linear slide rail.

And a lens module assembling method using the lens module assembling device, comprising the steps of: the holding unit holds the lens barrel; the clamping unit clamps the optical element, and the optical element Moving closer to the lens barrel; sliding the optical amplifying unit up and down along an extending direction of the linear sliding rail, the optical amplifying unit optically optically supporting the optical element and the holding unit Enlarging for verifying whether the optical element is aligned with the barrel; adjusting the optical element to align with the barrel; and assembling the optical element into the barrel.

Compared with the prior art, the lens module assembly device and the assembly method thereof optically magnify the optical component and the lens barrel by the optical amplifying unit, so that the operator can quickly and easily verify the positional relationship between the optical component and the lens barrel, and The optical elements are accurately assembled into the lens barrel by aligning the optical elements so that they are aligned with the lens barrel. It fundamentally improves the accuracy of the optical component assembly into the lens barrel and improves the assembly quality of the lens module.

10‧‧‧Lens module assembly device

11‧‧‧ Holding unit

12‧‧‧ Optical Amplifying Unit

13‧‧‧Linear slides

14‧‧‧Clamping unit

141‧‧ ‧ nozzle

142‧‧‧Flexible suction cup

20‧‧‧Mirror tube

30‧‧‧Optical components

A, B‧‧ Center

‧‧‧‧ Deviation

FIG. 1 is a cross-sectional view showing a lens module assembly apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic top view of a lens module assembly apparatus according to an embodiment of the present invention.

3(a) and 3(b) are schematic diagrams showing the process of aligning an optical component with a lens barrel by a lens module assembling device according to an embodiment of the present invention.

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

Referring to FIG. 1 and FIG. 2 , a lens module assembly device 10 according to an embodiment of the present invention is configured to assemble the optical component 30 into the lens barrel 20 after aligning the optical component 30 with the lens barrel 20 for assembly. Into a lens module. The optical elements can typically include lenses, filters, and the like. The lens module assembly device 10 includes a solid The holding unit 11, an optical amplifying unit 12, and a linear slide rail 13 are provided.

The holding unit 11 is for holding the lens barrel 20, which may be a jaw.

The lens module assembly device 10 further includes a clamping unit 14 for taking in the optical component 30. The clamping unit 14 can be provided with a suction nozzle 141 at one end and an elastic suction cup 142 at the other end. The elastic suction cup 142 penetrates the suction nozzle 141, and the air in the elastic suction cup 142 is extracted by the suction nozzle 141, so that the elastic suction cup 142 can tightly attract the optical component 30, that is, the optical component 30 is clamped. Hold it.

The optical amplifying unit 12 is placed on the side of the holding unit 11 for optically amplifying the lens barrel 20 and the optical element 30 held by the holding unit 11 . The optical amplifying unit 12 can be an optical magnifying glass 121. The optical amplifying unit 12 is slidably disposed on the linear slide rail 13 and slidable in a direction indicated by a double arrow in FIG.

Referring to FIG. 1 , FIG. 2 , FIG. 3( a ) and FIG. 3( b ), the lens module assembly method provided by the embodiment of the present invention includes the following steps: the holding unit 11 holds the lens barrel 20 , that is, The jaws 15 hold the lens barrel 20 in place.

The optical element 30 is moved closer to the barrel 20. Specifically, the air in the elastic chuck 142 is extracted by the suction nozzle 141, so that the elastic suction cup 142 can tightly attract the optical component 30, that is, the optical component 30 is clamped, and then moved. The clamping unit 14 moves the optical element 30 closer to the barrel 20.

The optical amplifying unit 12 optically amplifies the optical element 30 and the lens barrel 20 held by the holding unit 11 for verifying whether the optical element 30 and the lens barrel 20 are aligned. Specifically, it is observed by the optical magnifier 121 whether the optical element 30 is aligned with the lens barrel 20.

The optical element is adjusted to align with the barrel. As shown in FIGS. 3(a) and 3(b), when a positional deviation α is observed between the center of the optical element 30 and the center of the lens barrel 20, the operator can adjust the position of the optical element 30. The center A of the optical element coincides with the center B of the lens barrel 20.

The optical element 30 is assembled into the lens barrel 20. Specifically, the operator can assemble the optical component 30 into the lens barrel 20 by operating the clamping unit 14. When the optical element 30 is assembled to the predetermined position of the lens barrel 20, the elastic suction cup 142 is released from the optical element 30 by blowing the suction nozzle 141, and the clip can be clamped at this time. The holding unit 14 is moved away from the lens barrel 20.

The lens module assembly device 10 and the assembly method of the embodiment of the present invention optically magnify the optical component 30 and the lens barrel 20 by an optical amplifying unit 12, so that the operator can quickly and easily verify the optical component 30. The optical element 30 is accurately assembled into the lens barrel 20 in a positional relationship with the lens barrel 20 and by aligning the optical element 30 to the lens barrel 20. It fundamentally improves the accuracy of assembling the optical component 30 into the lens barrel 20, and improves the assembly quality of the lens module.

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 is only a preferred embodiment of the present invention, and the present invention The scope of the invention is not limited to the above-described embodiments, and equivalent modifications or variations made by persons skilled in the art to the spirit of the invention are intended to be included in the scope of the following claims.

10‧‧‧Lens module assembly device

11‧‧‧ Holding unit

12‧‧‧ Optical Amplifying Unit

13‧‧‧Linear slides

14‧‧‧Clamping unit

141‧‧ ‧ nozzle

142‧‧‧Flexible suction cup

20‧‧‧Mirror tube

30‧‧‧Optical components

A, B‧‧ Center

Claims (5)

A lens module assembly device for assembling an optical component assembly into a lens barrel, the lens module assembly device comprising: a holding unit for holding the lens barrel; and a clamping unit for clamping the same An optical amplifying unit is disposed on a side of the holding unit for optically amplifying the lens barrel and the optical element held by the holding unit from the side for observation; and a linear slide rail The optical amplifying unit is disposed on the linear slide rail and can slide up and down along the extending direction of the linear slide rail. The lens module assembly device of claim 1, wherein the optical amplifying unit is an optical magnifying glass. The lens module assembly device of claim 1, wherein one end of the clamping unit is provided with a nozzle, and the other end is provided with an elastic suction cup for sucking the optical component. The lens module assembly device of claim 1, wherein the holding unit is a jaw. A lens module assembling method using the lens module assembling device according to claim 1, comprising the steps of: the holding unit holding the lens barrel; the clamping unit clamping the optical element And moving the optical element closer to the lens barrel; Moving the optical amplifying unit up and down along an extending direction of the linear slide, the optical amplifying unit optically amplifying the optical element and the holding cylinder held by the holding unit from the side for verifying the optical component and Whether the lens barrel is aligned; adjusting the optical element to be aligned with the lens barrel; and loading the optical element group into the lens barrel.