Lens module

A lens module and lens technology, applied in installation, optics, instruments, etc., can solve the problems of plastic lens optical properties not as good as glass lens, low imaging quality of lens module, etc.

Inactive Publication Date: 2013-02-06
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
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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

The invention relates to a lens module, which comprises a lens cone, as well as a first lens, a second lens, a third lens and two shading pieces arranged in the lens cone, wherein the two shading pieces are arranged between non-optical parts of two adjacent lenses at intervals. The first, the second and the third lenses are orderly arranged from the object end to the image end of the lens module. Except the surface, leaning against the inner wall of the lens cone, of the non-optical lens part of the second lens, and the surface leaning against the first and the third lenses and forming an acute angel with the optical axis of the lens module, the other parts of the non-optical part is atomized, so that the stray light in imaged images can be eliminated and the imaging quality of the lens module can be improved.

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 Applications(China)
IPC IPC(8): G02B7/02
Inventor 颜士杰
Owner 三营超精密光电(晋城)有限公司
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