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Imaging lens

A technology of imaging lens and lens, applied in the field of imaging lens

Active Publication Date: 2022-07-12
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 light weight and high resolution. Known imaging lenses can no longer meet today's needs. Another kind of The imaging lens of the new structure can meet the needs of miniaturization, light weight and high resolution at the same time

Method used

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Embodiment Construction

[0030] The invention provides an imaging lens, comprising: a front lens group; and a rear lens group; wherein the front lens group includes a first lens with positive refractive power and a second lens with negative refractive power; wherein the rear lens group includes a third lens with positive refractive power and The fourth lens has negative refractive power, the third lens includes a convex surface facing the object side and another convex surface facing the image side, the fourth lens includes a concave surface facing the image side; the first lens, the second lens, the third lens and the fourth lens Arranged sequentially from the object side to the image side along the optical axis; the imaging lens satisfies the following conditions: 13.5mm1 1 is the effective focal length of the first lens.

[0031] The present invention provides another imaging lens, comprising: a front lens group; and a rear lens group; wherein the front lens group includes a first lens with positive...

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Abstract

The invention relates to an imaging lens comprising a front lens group and a rear lens group. The front lens group includes a first lens having positive refractive power and a second lens having negative refractive power. The rear lens group includes a third lens with positive refractive power and a fourth lens with negative refractive power. The third lens includes a convex surface facing the object side and another convex surface facing the image side. The fourth lens includes a concave surface facing the image side. The first lens, the second lens, the third lens and the fourth lens are sequentially arranged along the optical axis from the object side to the image side. The imaging lens meets the following conditions: 13.5mm<f+f 1 <20mm; among them, f is the effective focal length of the imaging lens, f 1 is the effective focal length of the first lens.

Description

technical field [0001] The present invention relates to an imaging lens. Background technique [0002] The development trend of today's imaging lenses, in addition to the continuous development of miniaturization, with different application requirements, it is also necessary to have light weight and high resolution. The known imaging lenses can no longer meet the current needs. The imaging lens of the new architecture can meet the requirements of miniaturization, light weight and high resolution at the same time. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide an imaging lens with short overall length, light weight and high resolution, but still have good optical performance, aiming at the above-mentioned defects of the prior art. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide an imaging lens including a front lens group and a rear lens group. The fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18
CPCG02B13/004G02B13/18G02B9/34G02B27/0025G02B5/005
Inventor 许荣顺
Owner SINTAI OPTICAL SHENZHEN CO LTD
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