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Micro pick-up lens

A miniature camera and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of no competitive advantage and high production cost of camera lenses, achieve excellent imaging quality, improve resolution capabilities, and reduce costs.

Active Publication Date: 2012-11-21
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, due to the existing miniature camera lens, if the imaging requirements of 2M high pixels are to be realized, more than three aspheric lenses are used. The production cost of the camera lens of this design is relatively high and there is no competitive advantage.

Method used

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Embodiment Construction

[0026] Hereinafter, specific implementation methods involved in the present invention will be described in detail in conjunction with the accompanying drawings.

[0027] first, figure 1 It is a schematic diagram of the specific structure of the micro camera lens involved in the present invention. As shown in the figure, the micro camera lens includes two aspherical lenses, and along the optical axis from the object plane to the image plane, the first lens with positive diopter A lens E1, a diaphragm E3, a second lens E2 with negative diopter, a filter E4, a chip protection glass E5 and an imaging surface E6.

[0028] Specifically describe the shape of the lens, the first lens is a meniscus-shaped convex-concave lens, the convex surface faces the object side, and the concave surface faces the image side; the second lens is a meniscus-shaped concave-convex lens, the concave surface faces the object side, and the convex surface towards the image side.

[0029] In order to achie...

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Abstract

The invention discloses a micro pick-up lens, which comprises two non-spherical lenses and a light diaphragm, wherein the diopter of each lens is positive and negative in turn; the lenses satisfy the following expression: VP1 is more than 50 and VP2 is less than 35; and in the expression, the VP1 and the VP2 are abbe numbers of the first lens and the second lens respectively. The micro pick-up lens adopts two sets of the non-spherical lenses, and with the help of reasonable optical parameters, improves the image resolving power of the whole set of the lenses, ensures that the lenses have excellent imaging quality and realizes that the two non-spherical lenses meet the imaging requirement of reaching a 2M high pixel. The micro pick-up lens greatly reduces the cost and obtains a better technical effect.

Description

technical field [0001] The invention relates to an imaging optical system of a lens, in particular to a miniature low-cost high-pixel lens composed of two groups of lenses Background technique [0002] As the competition in the mobile phone lens market becomes more and more fierce, micro camera lenses have been more researched and developed in the existing technology, and the price of the lens has become lower and lower. Currently in the market (especially in Japan), Low-cost camera lenses are becoming more and more workhorse and competitive. [0003] The traditional photographic lens is composed of a spherical lens, which is very convenient in design and processing, suitable for mass production, and low in cost, but this design only has a radius of curvature as a variable parameter, so it can only eliminate various aberrations to a certain extent. further development of the lens. If the camera lens uses an aspheric lens, more parameters can determine the surface shape, ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/18G02B13/00
Inventor 黄林戴付建李欢
Owner ZHEJIANG SUNNY OPTICAL CO LTD