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Lens module and assembly method thereof

A lens module and assembly method technology, applied in installation, TV, color TV, etc., can solve the problems of low positioning accuracy, low lens module packaging accuracy, blurred images, etc., and achieve the effect of ensuring alignment accuracy

Inactive Publication Date: 2013-09-11
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to certain manufacturing errors and assembly errors in the manufacturing process of the locking slot and the locking block, the positioning accuracy between the lens barrel and the image sensing module is not high, resulting in The optical axis of the lens barrel and the optical axis of the image sensor module are not on the same straight line
Due to the low encapsulation accuracy of the lens module, the images captured by the lens module are somewhat blurred, which reduces the image quality

Method used

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  • Lens module and assembly method thereof
  • Lens module and assembly method thereof
  • Lens module and assembly method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] like Figure 1-4 As shown, a lens module 100 provided by an embodiment of the present invention includes a lens base 10 , a lens barrel 20 and an image sensing module 30 . The lens barrel 20 is sleeved in the lens base 10 , and the lens base 20 is fixed on the image sensing module 30 .

[0022] The mirror base 10 is in the shape of a cuboid and includes a receiving portion 11 and a frame portion 12 . The receiving portion 11 includes an upper surface 111 and a lower surface 112 opposite to the upper surface 111 , and the frame portion 12 is fixed at a position close to an edge of the lower surface 111 . The receiving portion 11 defines a through hole 113 passing through the upper surface 111 and the lower surface 112 . The through hole 113 is cylindrical and includes an inner surface 114 , and an inner thread 1141 is disposed on the inner surface 114 .

[0023] The lens barrel 20 is cylindrical and includes a top surface 21 , a bottom surface 22 opposite to the top s...

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PUM

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Abstract

The invention provides a lens module which comprises a lens base, a lens cylinder and an image sensing module, wherein the lens cylinder is sleeved in the lens base, the image sensing module comprises a bearing plate and a sensor, the sensor is fixed on the bearing plate, one end of the lens base is fixed on the bearing plate, the sensor is contained inside containing space which is formed by the lens base and the bearing plate, the lens cylinder comprises a bottom surface facing towards the sensor, at least three cylinder bodies are arranged on the bottom surface, one end, facing towards the sensor, of each cylinder body comprises a circular end face, the centers of circles of the circular end faces of the at least three cylinder bodies are placed in the circumference of the same positioning circle, and the center of a circle of the positioning circle is simultaneously placed on an optical axis of the lens cylinder and the optical axis of the sensor. The plurality of cylinder bodies which are used for conducting positioning are arranged on the lens cylinder, therefore, positioning is conveniently conducted when the lens base is assembled on the image sensing module, and registration precision between the lens cylinder and the sensor is improved. The invention further provides an assembly method of the lens module.

Description

technical field [0001] The invention relates to a lens module, in particular to a lens module capable of improving packaging precision and an assembly method thereof. Background technique [0002] The lens module generally includes a lens base, a lens barrel and an image sensing module. The lens barrel is sleeved in the mirror seat, and the mirror seat is arranged above the image sensing module. In the process of assembling a traditional lens module, the lens holder and the image sensor module are generally positioned by a positioning mechanism, such as a slot and a block, to ensure packaging accuracy, so that the optical axis of the lens barrel is aligned with the image sensor. The optical axes of the sensing modules are on the same straight line. [0003] However, due to certain manufacturing errors and assembly errors in the manufacturing process of the locking slot and the locking block, the positioning accuracy between the lens barrel and the image sensing module is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G03B17/12H04N5/225
CPCG03B17/12G02B7/04Y10T29/49769H04N23/00H04N23/55
Inventor 陈俊明吴笛
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD