Compact-type catadioptric-type optical system

An optical system and catadioptric technology, applied in the field of optical systems, can solve the problems of large volume and complex structure of the catadioptric system, and achieve the effect of improving the compactness of the structure, meeting the requirements of light weight and reducing weight

Pending Publication Date: 2020-01-10
11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a compact catadioptric optical system to solve the problems of large volume and complex structure of the catadioptric system in the prior art

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  • Compact-type catadioptric-type optical system

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Embodiment Construction

[0027] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] Considering the strict requirements on the size and weight of airborne photoelectric equipment, and based on the fact that the existing coaxial reflective system cannot take into account compactness, light weight, large diameter, and large field of view, the embodiment of the present invention has been analyzed, Experiment, research, and propose a compact catadioptric optical system 1 .

[0029] Such as figure 1 As shown, t...

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Abstract

The invention discloses a compact-type catadioptric-type optical system. The system includes a primary mirror, a secondary mirror, a detector component and at least one lens. The primary mirror has acentral through hole passing through the same. The secondary mirror and the central through hole are arranged opposite in a spacing manner. An obstruction ratio N of the primary mirror and the secondary mirror meets N<=1 / 25. The detector component and the primary mirror are located at the same side of the secondary mirror. The detector component and the secondary mirror are arranged opposite in aspacing manner. The at least one lens is located between the secondary mirror and the detector component. By adopting the system, structure compactness of the compact-type catadioptric-type optical system can be improved, volume of the compact-type catadioptric-type optical system can be reduced, thus weight of the compact-type catadioptric-type optical system can be reduced to a larger extent, and weight lightening demand of an airborne photoelectric system can be met.

Description

technical field [0001] The invention relates to the field of optical systems, in particular to a compact catadioptric optical system. Background technique [0002] With the rapid development of airborne optoelectronic equipment, the reconnaissance system of airborne optoelectronic equipment has higher and higher requirements for resolution and operating distance. Large aperture and long focal length optical system is an important means to achieve high resolution and long operating distance. Since airborne optoelectronic equipment has strict requirements on volume and weight, how to realize the compact and lightweight design of large-aperture optical systems is one of the key technologies of airborne optoelectronic equipment. [0003] In the related art, the catadioptric system can greatly shorten the length of the optical system by refracting the optical path, thereby realizing the compactness and weight reduction of the optical system. Among them, the Cassegrain system is ...

Claims

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Application Information

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IPC IPC(8): G02B17/08
CPCG02B17/0808
Inventor 彭晴晴杜晓宇贲畅李江勇张兴德杨加强刘琳
Owner 11TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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