Infrared optical system and optical device

An infrared optical system and the same technology, applied in the field of infrared optical detection, can solve the problems of shortening the optical path, large volume, and reducing the volume of the optical system, and achieve the effect of miniaturization and improvement of detection ability.

Active Publication Date: 2019-02-15
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, the components of the cooled infrared detector, such as the cooled Dewar assembly, are large in size, and the position of the aperture diaphragm used in the optical system of the cooled infrared detector is fixed, which is not condu

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  • Infrared optical system and optical device
  • Infrared optical system and optical device
  • Infrared optical system and optical device

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[0026] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumsta...

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Abstract

The invention provides an infrared optical system and an optical device. By adoption of a coaxial catadioptric optical structure, the long focal length and large relative aperture imaging of medium wave or long wave infrared band can be realized, and the detection capability of the infrared optical system is remarkably improved. In addition, the miniaturization of the large aperture and long focallength infrared optical system is realized by utilizing a high gradient and large numerical aperture primary mirror, a high magnification afocal light path, and a 'hair bun type' light path layout; the thickness of the optical system in the optical axis direction is only 0.20~0.60 of the focal length.

Description

technical field [0001] The invention relates to the field of infrared optical detection, in particular to an infrared optical system and an optical device. Background technique [0002] Infrared optical systems have the advantages of good environmental adaptability, high concealment, strong anti-interference ability, etc., and are widely used in military, medical, security, electric power, remote sensing and industrial fields. With the increasing application of infrared optical systems , the design of infrared imaging system also put forward higher requirements. [0003] In order to improve the detection capability of the infrared optical system, three measures can be taken: one is to use a high-sensitivity cooled infrared detector; the second is to increase the effective aperture of the infrared optical system; the third is to improve the transmittance of the infrared optical system. Therefore, infrared optical systems with high resolution and high sensitivity require the ...

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Application Information

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IPC IPC(8): G02B13/14G02B17/08G01J5/08G01J5/00
CPCG02B13/14G02B17/0836G01J5/00G01J2005/0077G01J5/0808
Inventor 张新史广维付强
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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