Image capturing lens system

A lens system and lens technology, applied in optics, instruments, optical components, etc., can solve the problems of difficult balance between imaging quality and total system length, unsatisfactory, long total system length, etc.
CN103309013AActive Publication Date: 2013-09-18LARGAN PRECISION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LARGAN PRECISION
Publication Date
2013-09-18

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Abstract

This invention provides an image capturing lens system comprising three non-cemented lens elements with refractive power: a first lens element with positive refractive power having a convex object-side surface, and both the object-side and image-side surfaces being aspheric; a plastic second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, and both the object-side and image-side surfaces being aspheric; and a plastic third lens element having a convex object-side surface and a concave image-side surface, and both the object-side and image-side surfaces being aspheric. By such arrangement, the space of the image capturing lens system can be allocated much more properly and thereby an image capturing lens system with shorter total track length can be obtained while retaining superior image quality.
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Description

technical field

[0001] The present invention relates to an image pickup lens system, in particular, to an image pickup lens system applied to miniaturized electronic products and their three-dimensional (3D) imaging applications. Background technique

[0002] In recent years, with the rise of portable electronic products with photographic functions, the market demand for miniaturized photographic lenses has been increasing. The photosensitive element of a general photographic lens is nothing more than a photosensitive coupled device (Charge Coupled Device, CCD) or a complementary metal oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor). With the improvement of semiconductor process technology, the pixel size of the photosensitive element is reduced, which drives the development of miniaturized photographic lenses to the high-pixel field, and the requirements for imaging quality are also increasing.

[0003] The common miniaturized lens...

Claims

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