Image rotation motion optical target simulation device
A target simulation and motion technology, applied in the direction of measuring devices, optical instrument testing, instruments, etc., can solve problems such as inconsistent motion laws, inconsistent motion control parameters, and differences
Active Publication Date: 2018-01-26
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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However, due to the inevitable errors in actual manufacturing and assembly, the focal length and other related optical indicators of multiple sets of optical collimation systems must be different from the actual design values.
This also leads to the fact that the various target motion control parameters set according to the theoretical values of the optical collimation system are inconsistent with the actual situation, and then the moving targets located on the focal planes of multiple optical collimation systems in the space separation simulation optical path do not conform to the above-mentioned laws of motion. Three principles require
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[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0035] see Figure 1-3 shown;
[0036] An image rotation moving optical target simulation device of the present invention comprises:
[0037] Target simulator base 18 has a cavity inside the target simulator base 18;
[0038] The torsion table, the torsion table is installed in the cavity of the base 18 of the target simulation device, and the torsion table includes a torsion shaft 19 and a torsion drive shaft 27 assembled in series with the torsion shaft 19, and the torsion table can rotate along the axial direction;
[0039] The upper part of the torsion shaft 19 is fixedly connected with three mounting frames side by side, and a reticle 9 is fixed inside each mounting frame, and each reticle 9 is engraved with star points with different geom...
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The invention discloses an image rotation motion optical target simulation device. The device comprises a target simulation device base and a swinging stand, wherein an upper portion of the target simulation device base is fixedly and parallelly connected with three mounting racks, each mounting rack is internally fixed with one division board, star points with different geometric characteristicsare carved on each division board, the three division boards are driven by a swinging shaft to do reciprocating swinging motion, the simulation device further comprises three sets of uniform illumination optical systems, images of the division boards are respectively transmitted to collimation optical systems at a front end of a coupling object lens assembly through a set of a coupling object lensassembly and a fiber imaging beam assembly, and the images are projected through the three collimation optical systems to different view fields of a to-be-measured photoelectric imaging system at a front end of the simulation device. The device is advantaged in that based on same source motion target simulation, through an image transmitting optical fiber beam shunt coupling method, technical problems of asynchronous motion of image rotation targets and inconsistent motion rules of a view field in the prior art are solved.
Description
technical field [0001] The invention relates to the technical field of optical detection and optical measurement, in particular to a homologous, high-frequency image-rotation moving optical target simulation device mainly used in the testing and evaluation of space astronomical telescopes. Background technique [0002] A space astronomical telescope refers to a type of space optical payload mounted on a satellite platform for imaging and measuring various astronomical phenomena in the universe. For example, the well-known Hubble Telescope, Heschel Telescope, and Kepler Telescope are all typical space astronomical telescopes. The space astronomical telescope is different from the ground remote sensing system which adopts the continuous photography and imaging method of thrusting, but adopts the imaging method with a certain exposure time. In order to obtain stellar images of the early universe and improve the detection depth of the telescope, most of the above-mentioned spac...
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IPC IPC(8): G01M11/00
Inventor 何煦张晓辉姬琪杨雪
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI