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Imaging lens

An imaging lens and lens technology, applied in the field of imaging lenses, can solve the problem of being unable to meet miniaturization at the same time, and achieve the effects of good optical performance, light weight and high resolution

Active Publication Date: 2020-10-13
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an imaging lens with short total length and Smaller f-stops, lighter weight, higher resolution, but still good optical performance

Method used

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Embodiment Construction

[0024] The present invention provides an imaging lens, comprising: a first lens is a meniscus lens with positive refractive power, the first lens includes a convex surface facing the object side and a concave surface facing the image side; the second lens is a meniscus lens with negative refractive power, the The second lens includes a convex surface facing the object side and a concave surface facing the image side; the third lens is a meniscus lens with positive refractive power, and the third lens includes a convex surface facing the object side and a concave surface facing the image side; the fourth lens has a refractive power; the fifth lens has positive refractive power; the sixth lens has negative refractive power; and the seventh lens is a meniscus lens with negative refractive power, and the seventh lens includes a convex surface facing the object side and a concave surface facing the image side; wherein

[0025] The first lens, the second lens, the third lens, the fou...

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Abstract

An imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens with positive refractive power has a convex surface facing the object side and a concave surface facing the image side. The second lens with negative refractive power has a convex surface facing the object side and a concave surface facing the image side. The third lens with positive refractive power has a convex surface facing the object side and a concave surface facing the image side. The fourth lens has refractive power. The fifth lens has positive refractive power. The sixth lens has negative refractive power. The seventh lens has negative refractive power and comprises a convex surface facing the object side and a concave surface facing theimage side. The imaging lens satisfies the following conditions: 1 < R71 / R12 < 3, wherein R12 is the curvature radius of the image side surface of the first lens, and R71 is the curvature radius of the object side surface of the seventh lens.

Description

technical field [0001] The invention relates to an imaging lens. Background technique [0002] The development trend of today's imaging lens, in addition to the continuous development towards miniaturization, with different application requirements, it also needs to have the ability of large aperture, light weight and high resolution. Known imaging lenses can no longer meet today's needs. Another imaging lens with a new architecture is needed to meet the demands of miniaturization, large aperture, light weight and high resolution at the same time. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an imaging lens with short total length and Smaller f-stops, lighter weight, higher resolution, but still good optical performance. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide an imaging lens including a first lens, a second lens, a third lens, a fourth le...

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 陈建宏张锡龄
Owner SINTAI OPTICAL SHENZHEN CO LTD
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