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An uncooled large area array fast-scanning optical system

An optical system, non-cooling technology, applied in the optical field, can solve the problem of image blur, smear, etc., achieve the best image quality, clear imaging, and solve the effect of image blurring

Active Publication Date: 2021-01-01
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compared with the line-scanning imaging system, the area-array staring continuous fast-scanning imaging system is easier to implement key monitoring and tracking of key areas during variable-speed scanning. motion, making the image blurry and smearing

Method used

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  • An uncooled large area array fast-scanning optical system
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  • An uncooled large area array fast-scanning optical system

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Embodiment Construction

[0029] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0030] figure 1 It is a schematic diagram of the optical path of the uncooled large area array fast-scanning optical system composed of the Kepler telescopic optical system, the scanning oscillating mirror and the converging optical system.

[0031] According to the direction of the light path, it is composed of a Kepler telescopic objective lens group, a Kepler telescopic eyepiece group, a fast scanning oscillating mirror 5, a converging lens group and a detector 10. Wherein, the Kepler telescopic objective lens group is composed of the first lens 1 and the second lens 2; the Kepler telescopic eyepiece group is composed of the third lens 3 and the fourth lens 4; the converging imaging group is composed of the fifth lens 6, the fourth lens Six lenses 7, the seventh lens 8, and the eighth lens 9 constitute. See the table below for detailed optical parameters.

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Abstract

The invention relates to an uncooled large area array fast scanning optical system. The system achieves the clear imaging of the image and solves the problem that an image becomes virtual and trailingin the motion process of the area array fast scanning imaging system by adding a fast scanning swing mirror into the parallel optical path formed by a Keplerian telescope system, quickly scanning theswing of the swing mirror to compensate for the field angle in the motion of the imaging system, and ensuring that the target is stable in the image plane imaging position in the integration time. The system determines the configuration of the optical system by the theoretical calculation and analysis of a paraxial optical system. In addition, the system optimizes the image quality by optimizingthe lens curvature radius, lens spacing, and matching of different optical materials, and correcting the aberration of the optical system using special surface types such as an aspheric surface or a diffractive surface and the like.

Description

technical field [0001] The invention belongs to the optical technology and relates to an uncooled large-area array fast-scanning optical system. Background technique [0002] Compared with the line-scanning imaging system, the area-array staring continuous fast-scanning imaging system is easier to implement key monitoring and tracking of key areas during variable-speed scanning. motion, making the image blurry and smearing. It is easier to realize system miniaturization, light weight and manufacturing cost by adopting large area array uncooled detector devices. [0003] In the area array staring fast-scan image compensation optical system design, by adding a fast-scan pendulum mirror to the parallel optical path formed by the Kepler telescopic system, the fast-scan pendulum mirror swings back to compensate the field of view angle of the imaging system movement, ensuring The imaging position of the imaging target on the image plane remains unchanged during the integration t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00G02B26/10G02B26/08
CPCG02B26/0816G02B26/10G02B27/0025
Inventor 刘红霞张良毕野彪吴晓鸣
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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