High-resolution movable phone lens optical system

An optical system and high-resolution technology, applied in optics, optical components, instruments, etc., can solve problems such as poor imaging quality, small field of view, large volume, etc., and achieve aberration correction, large field of view, and imaging performance Good results

Active Publication Date: 2020-05-19
PUTIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current mobile phone lenses on the market basically have problems such as small field of view, large size, and poor imaging quality, especially in the case of insufficient light. A simple, large receiving aperture and high-resolution mobile phone lens system is an urgent problem to be solved in the mobile phone manufacturing industry

Method used

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  • High-resolution movable phone lens optical system
  • High-resolution movable phone lens optical system
  • High-resolution movable phone lens optical system

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Embodiment Construction

[0017] Such as Figure 1~5 As shown, a high-resolution mobile phone lens optical system includes diaphragms arranged in sequence from front to back along the incident light path, a meniscus-shaped first lens with positive refractive power, and a meniscus-shaped second lens with negative refractive power , a meniscus third lens with positive refractive power, a fourth lens with negative refractive power and a filter; the front and rear mirrors of the first lens, the second lens, the third lens and the fourth lens all adopt expansion odd Sub-aspheric surface, the aspheric surface adopts the power series sum of normalized polar coordinates before N =30 items for design, and the surface equation of the aspheric surface is:

[0018] ,

[0019] In the above formula, the first expression is similar to the standard quadric surface type, and the second expression is the power series sum of standardized polar coordinates. in, is the radius of curvature of the vertex; is the con...

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Abstract

The invention relates to a high-resolution movable phone lens optical system, which comprises a diaphragm, a crescent-shaped first lens with positive focal power, a crescent-shaped second lens with negative focal power, a crescent-shaped third lens with positive focal power, a fourth lens with negative focal power and an optical filter which are sequentially arranged along an incident light path from front to back, front and rear lens surfaces of the first lens, the second lens, the third lens and the fourth lens all adopt extended odd aspheric surfaces, and the surface equation of the aspheric surfaces is shown in the specification, wherein the conic coefficient is a quadric surface conic coefficient; wherein the number is the term number of the power series sum; wherein the coordinates are radial light coordinates; wherein the coordinates are standardized radial coordinates; wherein the coefficient is the coefficient of the second power. The high-resolution movable phone lens opticalsystem has the advantages of being simple in structure, large in field angle, large in receiving aperture, high in imaging quality, loose in tolerance, convenient to machine, install and adjust and the like.

Description

technical field [0001] The invention relates to a high-resolution mobile phone lens optical system, which belongs to the technical field of imaging lens system design. Background technique [0002] Because mobile phones have brought a lot of convenience to people's lives, they have become an indispensable part of people's lives; in addition, with the continuous introduction of high-end mobile phones, the camera function of mobile phones is an important measurement target for measuring the quality of high-end mobile phones. At the same time, it has also become a focus of people's attention. The pursuit of high-pixel, high-quality photo effects is one of the main pursuits of the current crowd. However, the current mobile phone lenses on the market basically have problems such as small field of view, large size, and poor imaging quality, especially in the case of insufficient light. A simple, large receiving aperture and high-resolution mobile phone lens system is an urgent p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/0045G02B13/18
Inventor 曹一青沈志娟陈越蔡丽晗
Owner PUTIAN UNIV
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