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Micro pickup lens

A miniature camera and lens technology, applied in optical components, optics, instruments, etc., can solve the problems of inability to take into account high quality and low sensitivity, and achieve the effect of excellent imaging quality, low tolerance sensitivity, and improved resolution capability.

Inactive Publication Date: 2010-09-29
ZHEJIANG SUNNY OPTICAL CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In view of the above problems, the present invention proposes an optical lens structure, which adopts the combination of aspheric lens and specific optical parameter design, which effectively solves the shortcomings of current lenses that cannot take into account both high quality and low sensitivity

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Embodiment Construction

[0036] Hereinafter, specific implementation methods involved in the present invention will be described in detail in conjunction with the accompanying drawings.

[0037] first, figure 1 It is a schematic diagram of the specific structure of the miniature camera lens involved in the present invention. As shown in the figure, the miniature camera lens includes three aspheric 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 E4, a second lens E2 with a negative diopter, a third lens E3 with a positive diopter, a filter E5 and an imaging surface E6.

[0038] 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 Facing the image side, the t...

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Abstract

The invention discloses a micro pickup lens, which comprises three non-spherical lenses and a diaphragm. The diopters of the lenses are positive, negative and positive respectively, wherein the lenses meet the following expressions that: VP1 is more than 50 and VP2 is less than 35; and in the expressions, the VP1 and the VP2 are abbe numbers of the first lens and the second lens respectively. Due to the adoption of a non-spherical lens combination mode, the micro pickup lens improves the resolution capability of the whole group of lenses and ensures that the lenses have good imaging quality; and meanwhile, due to the design of reasonable optical parameters, the lens has lower tolerance sensitivity, improves the tolerance, can realize stable quality in mass production, and achieves good technical effect.

Description

technical field [0001] The invention relates to an imaging optical system of a lens, in particular to a miniature high-quality low-tolerance sensitive lens composed of three groups of lenses. Background technique [0002] The miniature camera lens has obtained more research and development in the prior art, especially the camera lens with three-lens structure has obtained more and more development. However, how to design its specific structural parameters to achieve better optical effects has always been a major problem in the optical lens manufacturing industry. [0003] Generally speaking, the high quality of the camera lens is achieved by relying on one or more aspheric lenses. Since the aspheric lens has a better radius of curvature, it can maintain good aberration correction, thereby improving the quality of the camera lens. The overall resolution and quality, but this design can easily lead to low tolerances, high lens processing requirements, and cannot be stable in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/18
CPCG02B13/0035
Inventor 戴付建黄林李欢
Owner ZHEJIANG SUNNY OPTICAL CO LTD
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