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Lens module

A lens module and lens technology, applied in installation, optics, instruments, etc., can solve the problems that the optical properties of plastic lenses are not as good as those of glass lenses, and the image quality of lens modules is not high

Inactive Publication Date: 2016-03-02
三营超精密光电(晋城)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optical properties of plastic lenses are inferior to glass lenses in many aspects, so that the imaging quality of lens modules using plastic lenses is not high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] see figure 1 , is a lens module 100 provided in the embodiment of the present invention, which includes a lens barrel 101, a first lens 11, a second lens 12, a third lens 13, a fourth lens 14, a fifth lens 15, four light-shielding lenses chip 20 and an image sensor 30.

[0015] The lens barrel 101 is cylindrical and includes a half-closed object end surface 102 , an unclosed image end surface 103 and an accommodating space 104 communicating with both the object end surface 102 and the image end surface 103 . In this embodiment, the inner diameter D of the image end surface 103 is 5.3 mm.

[0016] The first lens 11 , the second lens 12 , the third lens 13 , the fourth lens 14 and the fifth lens 15 are accommodated in the accommodating space 104 , and along the optical axis M of the lens module 100 The directions are arranged sequentially from the object side to the image side. Each lens includes an optical part and a non-optical part. The optical part is used for opt...

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PUM

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Abstract

A lens module, which includes a lens barrel and a first lens, a second lens, and a third lens accommodated in the lens barrel, and two lenses arranged at intervals between the non-optical parts of two adjacent lenses shading film between. The first lens, the second lens and the third lens are arranged sequentially from the object end to the image end of the lens module. In the non-optical part of the second lens, except the surface that is opposed to the inner wall of the lens barrel, is opposed to the first lens and the third lens, and forms an acute angle with the optical axis of the lens module Except for the surface of the corner, the rest of the parts are fogged, so as to effectively eliminate the stray light in the imaged image, so as to improve the imaging quality of the lens module.

Description

technical field [0001] The invention relates to a lens module. Background technique [0002] Since the price of plastic lenses is much cheaper than that of glass lenses, out of cost considerations, current lens modules generally use plastic lenses. However, the optical properties of plastic lenses are inferior to those of glass lenses in many aspects, which makes the imaging quality of lens modules using plastic lenses not high. When the lens module uses the light of a flashlight as a light source to shoot in a dark room environment, the stray light phenomenon in the image formed on the image sensor of the lens module is relatively serious. Contents of the invention [0003] In view of this, it is necessary to provide a lens module that can effectively improve the imaging quality. [0004] A lens module, which includes a lens barrel and a first lens, a second lens, and a third lens accommodated in the lens barrel, and two lenses arranged at intervals between the non-opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02
Inventor 颜士杰
Owner 三营超精密光电(晋城)有限公司