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High-resolution zoom IR day and night lens

A high-resolution, dual-purpose technology, applied in installation, optics, instruments, etc., can solve the problems of indiscernibility, limited imaging band, time-consuming and laborious, etc., and achieve the effect of improving image quality and broad market prospects.

Inactive Publication Date: 2010-12-29
福州天健光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For most monitoring system projects, if a fixed-focus lens is used, it is necessary to repeatedly replace lenses with different focal lengths according to different needs, which is time-consuming and laborious
However, the general zoom lens, the imaging band is limited to the visible light range, and the image cannot be imaged or the image cannot be recognized in the dark.

Method used

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  • High-resolution zoom IR day and night lens
  • High-resolution zoom IR day and night lens

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0007] refer to figure 1 , a high-resolution zoom IR day and night dual-purpose lens, the lenses arranged along the incident direction of light include a focusing lens group (1) and a focusing lens group (2), and the focusing lens group (1) is sequentially provided with a A convex-concave lens A (1-1), a biconcave lens B (1-2) and a convex-concave lens C (1-3); the focusing lens group (2) is sequentially provided with a biconvex lens D (2-1), One piece of concave-convex lens E(2-2), one group of lens cementing group FG(2-34) composed of double-convex lens F(2-3) and double-concave lens G(2-4), one piece of double-convex lens H (2-5) and a convex-concave lens I (2-6).

[0008] Along the light incident direction, the air gap between the convex-concave lens A (1-1) and the bi-concave lens B (1-2) in the focusing lens group is 3.43mm, and the bi-concave lens B (1-2) and the convex-concave lens The air interval between C(1-3) is 0.15mm, the air interval between the biconvex lens ...

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Abstract

The invention relates to a high-resolution zoom IR day and night lens, which is characterized in that: lenses arranged along the light incidence direction are composed of a focusing lens group and a sharp focusing lens group; the focusing lens group comprises a negative meniscus A, a biconcave lens B and a negative meniscus C in turn; and the sharp focusing lens group comprises a biconvex lens D, a meniscus lens E, a lens gluing group FG consisting of a biconvex lens F and a biconcave lens G, a biconvex lens H and a negative meniscus I. The high-resolution zoom IR day and night lens performs enhanced zoom on object reflected light received by the lens, enlarges the lens applicable band to a night vision range, improves image quality, and has wide market prospect.

Description

technical field [0001] The invention relates to a high-resolution zoom IR day and night dual-purpose lens, which belongs to the monitoring field. Background technique [0002] For most monitoring system projects, if a fixed-focus lens is used, it is necessary to repeatedly replace lenses with different focal lengths according to different needs, which is time-consuming and laborious. However, for general zoom lenses, the imaging band is limited to the range of visible light, and cannot be imaged or imaged in a dark place. Therefore, it is the research purpose of the present invention to address the above problems. Contents of the invention [0003] The object of the present invention is to provide a high-resolution zoom IR day and night dual-purpose lens with clear imaging and good application effect. [0004] The present invention is characterized by: a high-resolution zoom IR day and night lens, characterized in that: the lenses arranged along the incident direction of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/20G02B7/04
Inventor 叶明华
Owner 福州天健光电有限公司