Three-Mode Switching System for Folding Telescope Exoplanet Imager

A technology for switching systems and telescopes, applied in telescopes, instruments, measuring magnetic variables, etc., can solve the problems of large volume of mode switching mechanism, low switching accuracy and reliability, and high cost, so as to improve positioning and switching accuracy and reduce noise , good meshing performance

Active Publication Date: 2021-08-24
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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Problems solved by technology

The mode switching mechanism of the folded-axis telescope exoplanet imager in the prior art is large in size and high in cost, and the switching accuracy and reliability are not high

Method used

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  • Three-Mode Switching System for Folding Telescope Exoplanet Imager
  • Three-Mode Switching System for Folding Telescope Exoplanet Imager
  • Three-Mode Switching System for Folding Telescope Exoplanet Imager

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Embodiment Construction

[0038] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0039] Such as figure 1 The three-mode switching system of the folded-axis telescope exoplanet imager, that is, the calibration system, is used to switch the self-calibration mode, observation mode and calibration mode of the fold-axis telescope exoplanet imager to realize three Organic cut-ins and cut-outs of patterns. The three-mode switching system of the present invention includes a self-calibrating light source switching device, a calibration light source switching device, an optical path switching device and a positioning device.

[0040] With reference to the optical path switching device shown in the figure, the substrate 1 is provided with a calibration light source hole, a star light hole and a calibration light source hole. The motor 3 drives the substrate 1 to rotate through the helica...

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Abstract

The invention relates to the field of exoplanet observation imagers, in particular to a three-mode switching system for an axis-folding telescope exoplanet imager. The switching system includes a self-calibrating light source switching device, a calibration light source switching device, an optical path switching device and a positioning device. A calibration light source hole, a star light hole and a calibration light source hole are arranged on the base plate of the light path switching device. The motor drives the substrate to rotate through helical gear transmission, and aligns the three holes on the substrate with the optical path of the exoplanet imager, thereby realizing the switching of the three modes of the exoplanet imager. The self-calibration light source switching device and the calibration light source switching device respectively use a wavelength division multiplexer and a Y-shaped optical fiber to realize switching between a plurality of different self-calibration light sources and two calibration light sources. The positioning groove and the sensor assembly in the positioning device are used to ensure the switching accuracy of the three-mode switching system.

Description

technical field [0001] The invention relates to the field of exoplanet imagers, in particular to a three-mode switching system for an axis-folding telescope exoplanet imager. Background technique [0002] The exoplanet imager needs to self-calibrate the overall optical path before working, and correct system errors through adaptive optics. This mode is called self-calibration mode. After the calibration of the exoplanet imager is completed, the starlight detected by the folding telescope is introduced into the exoplanet imager for scientific observation. This mode is called the observation mode. When the image processing of the captured starlight is performed when the observation is completed, scientific calibration of the exoplanet imager is required. This mode is called the calibration mode. When the exoplanet imager detects exoplanets, it needs to switch among the above three modes. The mode switching mechanism of the folding-axis telescope exoplanet imager in the prior...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B23/00G02B23/12G01R33/07
CPCG01R33/072G02B23/00G02B23/12
Inventor 许明明窦江培朱永田张熙赵刚郭晶戚永军
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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