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Lens module and camera module

A lens module and lens technology, applied in the field of optical systems, can solve problems affecting the quality of shooting images

Inactive Publication Date: 2010-01-06
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

However, part of the incident light 80 does not directly enter the image sensor through refraction, but enters the image sensor 160 after being reflected by the surface of the spacer ring 150, thereby forming a ghost image, which seriously affects the captured image. quality

Method used

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  • Lens module and camera module
  • Lens module and camera module

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Embodiment Construction

[0010] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] see figure 1 , the embodiment of the present invention provides a camera module 200 . The camera module 200 includes a lens barrel 220, a first lens 230, a light-absorbing sheet 260, a spacer ring 250, a second lens 240, And a mirror base 210, an image sensor 280. Wherein, the lens barrel 220 , the lens base 210 , the first lens 230 , the second lens 240 , the spacer ring 250 and the light absorbing sheet 260 form a lens module.

[0012] The lens barrel 220 is cylindrical, and the outer wall of the lens barrel 220 is provided with external threads.

[0013] The inner wall of the mirror base 210 is provided with an inner thread that can engage with the outer thread of the lens barrel 220 .

[0014] The image sensor 280 may be a Charge Coupled Device (CCD for short) or a Complementary Metal Oxide Semiconductor Transistor (CMOS for...

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Abstract

The invention provides a lens module, comprising a lens cone, a first ophthalmic lens and a second ophthalmic lens which are sequentially held in the lens cone from an object side to an image side, and a spacer ring which is arranged between the first ophthalmic lens and the second ophthalmic lens. A plurality of step-shaped through holes which share the same central axis are formed in the spacer ring, the bore diameters of the step-shaped through holes are gradually increased from the object side to the image side, and incident light can be partially reflected to the direction of the object side, thereby preventing a great amount of reflected light rays from entering an image sensor to form ghost and to affect the imaging quality of the lens module. The invention also provides a camera module provided with the lens module.

Description

technical field [0001] The invention relates to the field of optical systems, in particular to a lens module capable of improving ghost images and a camera module with the lens module. Background technique [0002] With the multi-functional development of electronic products, camera modules are widely used in consumer electronic products such as mobile phones, notebook computers, and personal digital assistants. While pursuing multi-functionality, people also hope that electronic products have excellent image effects, that is, camera modules are required to have high image quality. Takano, H, in an article titled "Two phase direct drive motor built into a camcorders zoom lens barrel" published in "Consumer Electronics" in February 1995, reveals a camera module with high imaging quality , and has the advantage of compact structure. [0003] A camera module is usually composed of a lens barrel with optical elements and a lens base with an image sensor. see figure 2 The cam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02
Inventor 张嘉淳
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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