Athermalization high-precision optical reflection prism system and design method
A deflection prism, high-precision technology, applied in the field of athermalized high-precision optical deflection prism system and design, can solve the problem that the temperature control accuracy cannot meet the requirements, and achieve the goal of reducing deformation, reducing errors, and optimizing resource allocation Effect
Active Publication Date: 2018-07-27
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology
Considering the high-precision characteristics of the measuring element, it must be ensured that it will not be affected by the thermal environment on-orbit. The current temperature control accuracy cannot meet the requirements, so the design of an athermalized high-precision optical deflection prism system is urgently needed
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[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. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0028] figure 1 It is a schematic structural diagram of an athermalized high-precision optical deflection prism system provided by an embodiment of the prese...
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The invention discloses an athermalization high-precision optical reflection prism system and a design method. The athermalization high-precision optical reflection prism system comprises an optical conduction prism assembly, a non-fully constrained support assembly and a composite material outer frame assembly, wherein the optical conduction prism assembly is connected with the composite materialouter frame assembly through the non-fully constrained support assembly; the optical conduction prism assembly comprises a plane reflection mirror, an optical conduction prism and an adjustable planereflection mirror; one end of the optical conduction prism is provided with a plane, and is connected with the plane reflection mirror; the other end of the optical conduction prism is provided witha sphere, and is connected with the adjustable plane reflection mirror; an incidence light beam passes through the plane reflection mirror, penetrates through the hollow part of the optical conductionprism, reaches the adjustable plane reflection mirror, and is reflected out, so as to complete the high-precision reflection of the light beam. The athermalization high-precision optical reflection prism system has the advantages that the influence to the high-precision measuring element by in-orbit heat environment is solved; the stability in correlation of optical layers between a camera and astar sensor is ensured.
Description
technical field [0001] The invention belongs to the technical field of space optical remote sensors, and in particular relates to an athermalized high-precision optical deflection prism system and a design method. Background technique [0002] With the development of commercial remote sensing satellites, there is an increasing demand for the improvement of positioning accuracy without control points. As the equipment with the highest attitude measurement accuracy on the star, the star sensor generally requires integrated installation with the camera and precise temperature control to reduce the The small star sensor points to the low frequency error transmitted by the boresight of the camera. Taking into account factors such as material degradation, it is necessary to regularly calibrate the angle between the camera and the star sensor on-orbit. In order to improve the flexibility of camera design and ease of use in orbit, it is necessary to establish an optical link betwee...
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IPC IPC(8): G01C21/02
CPCG01C21/025
Inventor王妍王伟之宗云花段维宏王庆雷贾永丹邸晶晶吴俊姜宏佳任宇宁
OwnerBEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH