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An integrated infrared dual-band 20x zoom optical system

An optical system, dual-band technology, applied in the direction of optics, optical components, instruments, etc., to achieve the effect of reducing cost burden, low complexity, and simultaneous measurement

Active Publication Date: 2019-08-20
XIAN TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose an integrated infrared dual-band 20X zoom optical system. During the continuous zooming process of the system, the focal length difference corresponding to the dual-band is less than its focal depth, and the dual-band target information can be Received by the same system, and does not require optical path switching, which solves the problems faced by the current dual-band system

Method used

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  • An integrated infrared dual-band 20x zoom optical system
  • An integrated infrared dual-band 20x zoom optical system
  • An integrated infrared dual-band 20x zoom optical system

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Embodiment Construction

[0027] The present invention is described in further detail below in conjunction with accompanying drawing:

[0028] The present invention consists of a common front fixed group, a public variable magnification group, a public compensation group, a public rear fixed group, a spectroscopic prism for reflecting mid-wave infrared light and transmitting long-wave infrared light, and a spectroscopic prism arranged in sequence from left to right along the optical axis. The long-wave infrared light post-fixation group set on the transmission light path, the mid-wave infrared focal length compensation group set on the reflection light path of the splitter prism, and the mid-wave infrared light post-fixation group are composed of seven parts, specifically:

[0029] see figure 1 , the public front fixed group, public zoom group, public compensation group, public rear fixed group and the spectroscopic prism L7 used to reflect mid-wave infrared light and transmit long-wave infrared light ...

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Abstract

The invention discloses an integrated infrared dual-band 20X zoom optical system. The integrated infrared dual-band 20X zoom optical system is composed of a common front fixing set, a common zooming set, a common compensation set, a common rear fixing set, a beam splitter prism, a long-wave infrared light rear fixing set, a medium-wave infrared focal length compensation set and a medium-wave infrared light rear fixing set which are sequentially arranged from left to right along an optical axis, wherein the beam splitter prism is used for reflecting medium-wave infrared light and transmitting long-wave infrared light, the long-wave infrared light rear fixing set is arranged on a transmission optical path of the beam splitter prism, the medium-wave infrared focal length compensation set is arranged on a reflection optical path of the beam splitter prism. In the continuous zooming process, a difference value between corresponding focal lengths of dual bands is less than a difference value between corresponding focal depths of the dual bands, target information of the dual bands can be received by the same system without switching the optical paths, and problems existing in an existing dual-band system at present are solved.

Description

[0001] 【Technical field】 [0002] The invention belongs to the technical field of optical equipment, and in particular relates to an integrated infrared dual-band 20X zoom optical system. [0003] 【Background technique】 [0004] With the rapid development of infrared thermal imaging technology and the increasingly complex application environment, the requirements for the detection range, detection synchronization and real-time performance of the zoom imaging optical system are getting higher and higher. Compared with infrared single-band fixed-focus, infrared single-band fixed-point zoom, and single-band small zoom ratio zoom optical systems, dual-band or even multi-band continuous zoom optical systems have greater advantages, and can have more observation channels. Within the range of distance, it is beneficial to find the target more quickly, obtain more comprehensive target information, and realize the continuous search of short focus and large field of view, and the precise...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/177
Inventor 高明刘钧陈阳荆卫国吕宏
Owner XIAN TECH UNIV
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