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Super star-light-level high-resolution fixed focus lens

A superstar-level, fixed-focus lens technology, applied in the lens field

Pending Publication Date: 2018-09-21
DONGGUAN YUTONG OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are almost no matching lenses on the market at present, so it is necessary to develop corresponding ultra-low illumination F1.0 1 / 1.8" lenses

Method used

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  • Super star-light-level high-resolution fixed focus lens
  • Super star-light-level high-resolution fixed focus lens
  • Super star-light-level high-resolution fixed focus lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only for reference and description, and do not constitute a limitation to the protection scope of the present invention.

[0019] like figure 1 As shown, a fixed-focus lens with super starlight level high resolution includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a fifth lens arranged in sequence along the optical axis from the object side to the image side 5. The sixth lens 6, the seventh lens 7, the eighth lens 8, the ninth lens 9, the tenth lens 10 and the eleventh lens 11, the first lens 1 is a convex-convex negative refractive lens, and the first lens The second lens 2 is a double-concave negative power lens, the third lens 3 is a concave-convex positive power lens, the fourth lens 4 is a double-convex positive power lens, and the fifth lens 5 is a convex-convex positive power lens....

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Abstract

The present invention provides a super star-light-level high-resolution fixed focus lens which comprises a first lens with convex-concave negative focal power, a second lens with biconcave negative focal power, a third lens with concave-convex positive focal power, a fourth lens with biconvex positive focal power, a fifth lens with convex-concave positive focal power, a sixth lens with convex-concave negative focal power, a seventh lens with biconcave negative focal power, an eighth lens with biconvex positive focal power, a ninth lens with biconvex positive focal power, a tenth lens with convex-concave negative focal power and an eleventh lens with biconvex positive focal power which are orderly arranged from an object side to an image side along an optical axis. 11 specially arranged lenses are adopted, the super star-light-level high-resolution fixed focus lens has a characteristic of ultra large amount of light pass, a wide angle 110 degrees of the field of view angle is supported,and at the same time, the requirements of resolution and imaging can be ensured when the lens is used in an environment of -40 DEG C to 70 DEG C.

Description

technical field [0001] The invention relates to the field of lens technology, in particular to a fixed-focus lens with super starlight level and high resolution. Background technique [0002] With the increasing popularity of security monitoring facilities, the monitoring environment and screen requirements are getting higher and higher, and monitoring screens with higher pixels and greater light flux are required. At present, image sensor manufacturers have launched 1 / 1.8" large image area low-illumination image sensors, which have better light-receiving ability. However, there are almost no lenses that can match it on the market, so the corresponding ultra-low-illumination F1 is developed. 0's 1 / 1.8" lens is necessary. Contents of the invention [0003] The invention provides a fixed-focus lens with super starlight level and high resolution, which overcomes the deficiencies in the prior art and is more compatible with a large image surface and low-illuminance image sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B13/00G02B13/06
CPCG02B13/005G02B13/006G02B13/06
Inventor 张品光刘官禄毛才荧何剑炜
Owner DONGGUAN YUTONG OPTICAL TECH
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