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starlight simulator

A simulator and starlight technology, applied in the field of starlight simulators, can solve the problems of inability to realize multi-field dynamic display and low precision, and achieve the effect of simple structure and low cost

Inactive Publication Date: 2016-06-22
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The static starlight simulator has high simulation accuracy, but cannot realize multi-field dynamic display
Although the dynamic starlight simulator can realize dynamic display, the accuracy is relatively low

Method used

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Embodiment Construction

[0013] The technical solution of the present invention will be further described in detail below according to the drawings in the description and in combination with specific embodiments.

[0014] see figure 1 , the first embodiment of the present invention provides a star simulator 100, comprising: a light source 10, a homogenizer 11, an imaging lighting system 12, a filter 13, a polarizer 14, an LCD 15, a polarizer device 16 , a parallel optical system 17 and an imaging surface 18 .

[0015] The light source 10 is used to output a light beam, which simulates the light beam emitted by a star. Preferably, the light source 10 is a point light source. In the embodiment of the present invention, the light source 10 is an LED light source with a radius of about 1mm.

[0016] The homogenizer 11 is arranged on the outgoing light path of the light beam, and is used to make the light beam uniform. The homogenizer 11 can be a light guide plate. The light source 10 can be arranged ...

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Abstract

The invention relates to a starlight simulator which comprises a light source, a dodging device, an imaging illumination system, an optical filter, a polarizer, a liquid crystal display (LCD), a polarization analyzer, a parallel optical system and an imaging surface, wherein the light source is used for outputting a light beam; the dodging device is arranged on an emergent light path of the light beam and is used for dodging the light beam; the imaging illumination system is arranged on one side, which is far away from the light source, of the dodging device and is used for emitting the light beam according to a specified aperture; the optical filter, the polarizer, the LCD and the polarization analyzer are sequentially arranged on a light path on one side, which is far away from the dodging device, of the imaging illumination system; the parallel optical system is arranged on a light path on one side, which is far away from the LCD, of the polarization analyzer and is used for emitting the passed light beam in a high-precision parallel light form; the imaging surface is arranged on a light path on one side, which is far away from the polarization analyzer, of the parallel optical system and is used for receiving the light beam.

Description

technical field [0001] The invention relates to a starlight simulator, in particular to a starlight simulator used for testing and simulation of a starlight navigation system. Background technique [0002] Starlight sensors are important navigation instruments in satellites and spacecraft. The starlight simulator is the main ground calibration device for the starlight sensor, which simulates the star map of the starry sky on the ground and provides standard test signals for the starlight sensor. [0003] Starlight simulators in the prior art can be subdivided into static starlight simulators and dynamic starlight simulators. The static starlight simulator has high simulation accuracy, but it cannot realize multi-field dynamic display. Although the dynamic starlight simulator can realize dynamic display, its accuracy is relatively low. [0004] Therefore, it is necessary to provide a high-precision dynamic space background and high-precision target simulation starlight sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 朱钧潘璇
Owner TSINGHUA UNIV