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imaging lens

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

Active Publication Date: 2022-04-15
SINTAI OPTICAL SHENZHEN CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The development trend of today's imaging lenses, in addition to the continuous development towards large apertures, with different application requirements, it is also necessary to have the ability of miniaturization and high resolution. Known imaging lenses can no longer meet today's needs. Another imaging lens with a new structure can meet the characteristics of large aperture, miniaturization and high resolution at the same time

Method used

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Embodiment Construction

[0048] see figure 1 , figure 1 is a schematic diagram of the lens configuration of the first embodiment of the imaging lens according to the present invention. The imaging lens 1 includes a diaphragm ST1, a first lens L11, a second lens L12, a third lens L13, a fourth lens L14, a fifth lens L15, a sixth lens L16 and Filter OF1. During imaging, the light from the object side is finally imaged on the imaging surface IMA1.

[0049] The first lens L11 is a meniscus lens with positive refractive power. The object side S12 is convex, the image side S13 is concave, and both the object side S12 and the image side S13 are aspheric surfaces.

[0050] The second lens L12 is a meniscus lens with negative refractive power. The object side S14 is convex, the image side S15 is concave, and both the object side S14 and the image side S15 are aspheric surfaces.

[0051] The third lens L13 is a meniscus lens with positive refractive power. The object side S16 is convex, the image side S17 i...

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Abstract

An imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens is a meniscus lens with positive refractive power, and includes a convex surface facing the object side and a concave surface facing the image side. The second lens has refractive power. The third lens has refractive power. The fourth lens has refractive power. The fifth lens has positive refractive power and includes a convex surface facing the image side. The sixth lens has negative refractive power and includes a concave surface facing the image side. The first, second, third, fourth, fifth and sixth lenses are arranged sequentially along the optical axis from the object side to the image side. The imaging lens meets the following conditions: 3<D 1 / T 6 <9; where, D 1 is the optical effective diameter of the object side of the first lens, T 6 is the thickness of the sixth lens on the optical axis.

Description

technical field [0001] The invention relates to an imaging lens. Background technique [0002] The development trend of today's imaging lenses, in addition to the continuous development towards large apertures, with different application requirements, it is also necessary to have the ability of miniaturization and high resolution. Known imaging lenses can no longer meet today's needs. Another imaging lens with a new architecture can satisfy the characteristics of large aperture, miniaturization 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 which has the characteristics of large aperture, miniaturization and high resolution, but still has good optical performance in view of 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 fir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B13/00G02B13/18G02B13/06
CPCG02B13/0045G02B13/18G02B13/06
Inventor 陈建宏张锡龄
Owner SINTAI OPTICAL SHENZHEN CO LTD
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