Optical imaging lens group

An optical imaging lens and imaging surface technology, applied in optics, optical components, instruments, etc., can solve problems such as unsatisfactory photographic lens modules, achieve high-quality resolution, reduce lens volume, and reduce sensitivity
CN102466865AActive Publication Date: 2012-05-23LARGAN PRECISION
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
LARGAN PRECISION
Publication Date
2012-05-23

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Abstract

The invention discloses an optical imaging lens group, comprising five lenses of refractive power which consist of a first lens, a second lens, a third lens, a fourth lens and a fifth lens in sequence from an object side to an image side, wherein the first lens has positive refractive power, and the surface of the object side of the first lens adopts a convex surface; the second lens has negative refractive power; the third lens has negative refractive power; the fourth lens has negative refractive power, and at least one of the surfaces of the object side and the image side of the fourth lens adopts a non-spherical surface; and the surface of the image side of the fifth lens adopts a concave surface, at least one of the surfaces of the object side and the image side of the fifth lens adopts the non-spherical surface, and the fifth lens is made of plastic. With the configuration mode of the optical imaging lens group, the sensitivity of the optical system and the lens size can be reduced, aberration and astigmatism of the system can be effectively corrected, and resolving power with high quality can be obtained.
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Description

technical field

[0001] The invention relates to an optical imaging lens group; in particular, it relates to a miniaturized optical imaging lens group applied to electronic products. Background technique

[0002] In recent years, with the rise of portable electronic products with photographic functions, the demand for miniaturized photographic lenses has increased day by day, and the photosensitive element of general photographic lenses is nothing more than a charge coupled device (CCD) or complementary There are two types of Complementary Metal-Oxide Semiconductor Sensor (CMOSSensor), and with the advancement of semiconductor process technology, the pixel size of the photosensitive element is reduced, and the miniaturized photographic lens is gradually developing into the high-pixel field. Therefore, for imaging Quality requirements are also increasing.

[0003] Traditional miniaturized photographic lenses mounted on portable electronic products, as shown in US Patent No. 7...

Claims

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