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Optical system of diffractive compound eye telescope

A technology for optical systems and telescopes, applied in the direction of telescopes, optics, optical components, etc., can solve the problems of low cost and light weight, and achieve the effects of low production cost, loose production tolerance, and easy duplication

Inactive Publication Date: 2009-10-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

The optical system of the diffractive compound eye telescope can solve the contradiction between the light weight and low cost of the traditional telescope system and the high resolution of the large field of view

Method used

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  • Optical system of diffractive compound eye telescope
  • Optical system of diffractive compound eye telescope
  • Optical system of diffractive compound eye telescope

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Embodiment 1

[0029] Below in conjunction with accompanying drawing, the present invention is further described, according to the appended figure 1 As shown, follow the steps below to place the light path:

[0030] 1: First place the diffraction objective lens I vertically, and calibrate the focal length L of the diffraction objective lens I at the central wavelength of 587.6nm.

[0031] 2: At the distance L of the diffraction objective lens I, place the sub-eyepiece system 0 horizontally, and make the sub-eyepiece system 0 and the diffraction objective lens I coaxial.

[0032] 3: On the horizontal plane passing the optical axis, rotate the main optical axis with length L 0.2° counterclockwise, and place the sub-eyepiece system 1 on the vertical axis.

[0033] 4: On the horizontal plane passing the optical axis, rotate the main optical axis with length L clockwise by 0.2°, and place the sub-eyepiece system 1’ on the vertical axis.

[0034] 5: Place receivers on the back focal planes of th...

Embodiment 2

[0037] Below in conjunction with accompanying drawing, the present invention is further described, according to the appended figure 1 As shown, follow the steps below to arrange the optical path:

[0038] 1: First place the diffraction objective lens I vertically, and calibrate the focal length L of the diffraction objective lens I at the central wavelength of 587.6nm.

[0039] 2: At the distance L of the diffraction objective lens I, place the sub-eyepiece system 0 horizontally, and make the sub-eyepiece system 0 and the diffraction objective lens I coaxial.

[0040] 3: On the horizontal plane passing the optical axis, rotate the main optical axis with length L 0.2° counterclockwise, and place the sub-eyepiece system 1 on the vertical axis.

[0041] 4: According to step 3, rotate the main optical axis of length L counterclockwise by 0.4°, and place the sub-eyepiece system 2 on the vertical axis.

[0042] 5: According to step 3, rotate the main optical axis of length L count...

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Abstract

The invention relates to an optical system of a diffractive compound eye telescope, belonging to the technical field of space optics. The optical system of the diffractive compound eye telescope adopts a diffractive lens as an objective lens, the spatial arrangement is carried out on the diffractive lens and sub-eyepiece systems according to more than one pair of biological compound eye structures, namely the sub-eyepiece systems are arranged by a certain spatial angle at a focus of the achromatism central wavelength of the diffractive lens, and receivers are respectively arranged behind each sub-eyepiece system. The number of a plurality of the sub-eyepiece systems is an odd number among 3-19, and the angle of view of the telescope system is decided by the number n of eyepiece groups II which are used. The whole system has very light weight, the view field can be expanded to 3 times to 19 times compared with a single diffractive telescope within the wide spectral range of 0.4mu m-0.7mu m, and the whole system further has high resolution and high imaging quality which is near to the diffraction limit. The diffractive compound eye telescope well solves the contradiction between the light weight and the low cost of the traditional space telescope and the large view field and high resolution and can be used in space-to-earth observation and remote observation, space photography and other fields.

Description

technical field [0001] The invention is a space imaging optical system, which is mainly used in the fields of space photography, space earth observation remote sensing and the like. Background technique [0002] The launch characteristics of modern miniaturized satellites require the optical system carried by them to have the characteristics of light weight, high resolution and large field of view. At present, there are two solutions to the above characteristics: the reflective space telescope optical system using an aspheric mirror as the primary mirror has high requirements for the surface shape accuracy of the aspheric surface, which is difficult to process and high in cost; the diffractive lens is used as the transmission lens of the primary mirror. Although the optical system has relatively loose tolerance requirements, it is difficult to solve the contradiction between large field of view and light weight. The diffraction telescope based on the compound eye structure,...

Claims

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Application Information

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IPC IPC(8): G02B23/00G02B25/00
Inventor 卢振武岳巾英刘华
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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