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Camera module

A camera module and lens technology, applied in the field of optical imaging, can solve problems such as image reflection light pattern

Inactive Publication Date: 2013-02-13
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] In a traditional camera module, some light is easily reflected by the inner wall of the through hole to the effective photosensitive area of ​​the image sensor, resulting in serious reflected light streaks in the imaged image

Method used

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] see Figure 1-2 The camera module 10 according to the first embodiment of the present invention includes a lens barrel 11 , a first lens 12 , a second lens 13 , a shading film 14 , an infrared filter 17 , a substrate 16 , and an image sensor 18 .

[0015] The first lens 12 , the second lens 13 and the shading sheet 14 are accommodated in the lens barrel 11 , and the shading sheet 14 is located between the first lens 12 and the second lens 13 . The lens barrel 11 , the first lens 12 , the second lens 13 and the shading sheet 14 together form a lens 15 . The lens 15 has an optical axis 152 .

[0016] The base plate 16 has a first surface 161 and a second surface 162 opposite to each other, the first surface 161 is provided with a first groove 163, the second surface 162 is provided with a second groove 164, and communicates with the fir...

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Abstract

The invention discloses a camera module, which comprises a lens, a substrate fixedly matched with the lens, and an image sensor fixedly arranged on the substrate, wherein the lens comprises a lens cone and a lens arranged inside the lens cone; the lens comprises an optical axis; the substrate comprises opposite first surface and second surface, and a through hole penetrating through the first surface and the second surface; the substrate further comprises an inner side encircling the through hole; the substrate is arranged between the lens and the image sensor; an effective photosensitive area of the image sensor is arranged inside the through hole; the height of the area with reflected ray on the inner side in the optical axis direction is D; the effective photosensitive area is a rectangle; the cross section of the through hole is also a rectangle; a long edge of the effective photosensitive area is parallel to the long edge of the cross section of the through hole; the distance between the long edge of the effective photosensitive area and the long edge of corresponding through hole is greater than 0.27D, and the distance between a short edge of the effective photosensitive area and the short edge of corresponding through hole is greater than 0.27D.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a camera module. Background technique [0002] The camera module includes a lens barrel, a lens group arranged in the lens barrel, a substrate and an image sensor arranged on the substrate. The substrate is provided with through holes penetrating through the upper and lower surfaces. The through hole allows light to pass through to the image sensor for imaging. [0003] In a traditional camera module, some light is easily reflected by the inner wall of the through hole to the effective photosensitive area of ​​the image sensor, thereby causing severe reflection streaks in the imaged image. Contents of the invention [0004] In view of this, it is necessary to provide a camera module capable of reducing reflection light streaks. [0005] A camera module includes a lens, a substrate fixedly matched with the lens, and an image sensor fixed on the substrate. The lens in...

Claims

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Application Information

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IPC IPC(8): G03B17/02G03B17/12G02B7/00H04N5/225
Inventor 李俊佑
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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