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Multi-telescope optical synthetic aperture imaging system and design method thereof

A synthetic aperture and imaging system technology, which is applied in optics, optical components, instruments, etc., can solve the problems of difficult processing and manufacturing, difficulty in reaching system indicators, etc., and achieve easy processing and assembly, reasonable layout, and high spatial resolution. Effect

Inactive Publication Date: 2011-05-25
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The present invention aims to provide a design method for a multi-telescope optical synthetic aperture imaging system to solve the problems that the traditional single large-aperture optical system is difficult to process and manufacture and that some simple synthetic aperture imaging systems are difficult to achieve the desired system index in practice

Method used

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  • Multi-telescope optical synthetic aperture imaging system and design method thereof
  • Multi-telescope optical synthetic aperture imaging system and design method thereof
  • Multi-telescope optical synthetic aperture imaging system and design method thereof

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Embodiment Construction

[0044] For the three-mirror catadioptric optical synthetic aperture imaging system of the present invention, the overall technical indicators required by the system are shown in Table 1.

[0045] Table 1

[0046] working spectrum

0.51~0.59μm

Full field of view

0.2°

Aperture

500mm

System focal length

5400mm

Aperture arrangement

GOLAY3

[0047] According to the overall system index requirements proposed in Table 1, the system is assigned and designed according to the design method of the present invention, and the technical indexes of the obtained afocal sub-telescope and beam combining mirror are shown in Table 2.

[0048] Table 2

[0049]

afocal sub-telescope

beam combining mirror

working band

0.51~0.59μm

0.51~0.59μm

Entrance pupil diameter

200mm

50mm

focal length

540mm

magnification

10

---

Full field of view

0.2°

2...

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Abstract

The invention aims to provide a multi-telescope optical synthetic aperture imaging system and a design method thereof in order to solve the problems that the conventional single large-aperture optical system is difficult to process and manufacture, and that the synthetic aperture imaging system cannot reach a desired system index in practice. The designed three-sub-telescope refractive and reflective optical synthetic aperture imaging system consists of a light beam synthesis mirror, three afocal sub telescopes which have the same structure and are arranged in a central symmetry manner on the system entrance pupil face, and optical delay lines which respectively correspond to the afocal sub telescopes; the aperture, on the light beam synthesis mirror, of the common circumcircle of the exit pupils of the three afocal sub telescopes meets the requirement of the magnifying power of the afocal sub telescopes; the optical delay lines are arranged on parallel emergent light paths of corresponding refraction systems; each of the optical delay lines consists of two planar reflecting mirrors; and the light beam synthesis mirror is a rotation symmetric system. The multi-telescope optical synthetic aperture imaging system is compact in structure and rational in layout, and lays the foundation for implementation of engineering application of the synthetic aperture imaging technology.

Description

technical field [0001] The invention relates to a design method of a multi-telescope optical synthetic aperture imaging system, and a system designed and formed based on the method. Background technique [0002] According to the theory of physical optics, when the working wavelength of the system is fixed, to improve the spatial resolution of the optical system, the aperture of the system must be increased. In practical applications, the increase of the aperture of large or super large optical systems is limited by many factors such as materials, technology level, assembly, payload compartment volume and cost, etc., and it is difficult or even impossible to realize under the current technical conditions . And for the space optical system, the increase of the caliber will inevitably bring difficulties in launching, and the complex space environment may also lead to the deformation of the large-aperture optical mirror, which cannot achieve normal working performance, and even...

Claims

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Application Information

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IPC IPC(8): G02B27/58G02B17/08
Inventor 梁士通杨建峰薛彬阮萍
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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