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Low-distortion and large-relative-aperture wide-angle TOP optical lens, and manufacturing method thereof

A relative aperture, optical lens technology, applied in optics, optical components, instruments, etc., can solve the problems of large optical distortion, small optical distortion, and high resolution of TOF optical lenses, achieving low optical distortion, satisfying low distortion, reducing effect of sensitivity

Pending Publication Date: 2019-03-29
FUJIAN FORECAM OPTICS CO LTD
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  • Application Information

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Problems solved by technology

[0003] The present invention improves the above-mentioned problems, that is, in order to solve the problems of large field of view TOF optical lens with large phase optical distortion, etc., the present invention proposes a wide-angle TOF optical lens with small optical distortion, high resolution and large relative aperture

Method used

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  • Low-distortion and large-relative-aperture wide-angle TOP optical lens, and manufacturing method thereof
  • Low-distortion and large-relative-aperture wide-angle TOP optical lens, and manufacturing method thereof
  • Low-distortion and large-relative-aperture wide-angle TOP optical lens, and manufacturing method thereof

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Embodiment Construction

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as Figure 1~4 As shown, a low distortion large relative aperture wide-angle TOF optical lens, the TOF optical lens system structure is composed of eight glass spherical lenses, including optical components placed in the lens barrel, the optical components are sequentially from the object plane to the image plane There are first meniscus lens L1 with positive power; meniscus lens L2 with second negative power; biconcave lens L3 with third negative power; biconvex lens L4 with fourth positive power; fifth biconvex lens L5 with positive power ; Aperture stop S1; a cemented lens composed of the sixth positive power biconvex lens L6 and the seventh negative power meniscus lens L7; the eighth positive power meniscus lens L8; and the parallel glass plate P1 located in front of the image plane

[0028] Further, the distance from...

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Abstract

The invention relates to a low-distortion and large-relative-aperture wide-angle TOP optical lens, and a manufacturing method thereof. A TOP optical lens system comprises eight glass spherical lens, wherein a first positive-focal-power meniscus lens L1, a second negative-focal-power meniscus lens L2, a third negative-focal-power biconcave lens L3, a fourth positive-focal-power biconcave lens L4, afifth positive-focal-power biconcave lens L5, an aperture diaphragm S1, a glued lens formed by a sixth positive-focal-power biconcave lens L6 and a seventh negative-focal-power meniscus lens L7, andan eighth positive-focal-power meniscus lens L8 are sequentially arranged from an object plane to an image plane; and a parallel glass plate P1 is located in front of the image plane IMA. The TOP optical lens system has the advantages of larger field angle, extremely low optical distortion and large relative aperture, and light source power requirements can be reduced; and the lens can be used with a 1-megapixel TOF chip.

Description

technical field [0001] The invention relates to a TOF optical lens with low distortion, large relative aperture and wide angle and a manufacturing method thereof. Background technique [0002] With the development of TOF (Time of flight) technology, the requirements for TOF lenses are getting higher and higher. In many application fields, it is required to achieve a large field of view while requiring low optical distortion. Currently, TOF lenses with large field of view The optical distortion is large, and the distortion needs to be reduced through the back-end algorithm, resulting in a decrease in image processing efficiency and a sacrifice in the field of view. Contents of the invention [0003] The present invention improves the above-mentioned problems, that is, in order to solve the problems of large phase optical distortion of the TOF optical lens with a large field of view, the present invention proposes a wide-angle TOF optical lens with small optical distortion, ...

Claims

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Application Information

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IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/005G02B13/06
Inventor 林孝同肖维军张世忠杨樟洪
Owner FUJIAN FORECAM OPTICS CO LTD
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