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Device and method for aligning optical axis of collimator with optical axis of optical mechanical system in stray light test

A technology of collimating light pipe and aligning device, which is applied in the directions of measuring device, optical instrument testing, testing optical performance, etc., can solve the problems of low efficiency of optical axis method, complicated device structure, difficult operation, etc., and achieves low development cost, Small size and simple operation steps

Active Publication Date: 2021-07-27
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems of the existing stray light test collimator optical axis and the optical axis alignment of the optical machine system. The operation is difficult, and the focus judgment method of the system to be tested can only be qualitatively judged and is only applicable to the technical problems of a simple optical system. A device and method for aligning the optical axis of the parallel light tube and the optical axis of the optical machine system in the stray light test is provided.

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  • Device and method for aligning optical axis of collimator with optical axis of optical mechanical system in stray light test
  • Device and method for aligning optical axis of collimator with optical axis of optical mechanical system in stray light test
  • Device and method for aligning optical axis of collimator with optical axis of optical mechanical system in stray light test

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with accompanying drawing.

[0056] In the stray light test provided by the present invention, the optical axis of the collimator and the optical axis of the optical mechanical system are aligned, such as Figures 1 to 6 As shown, it includes structural frame 1, horizontal line laser (indicated by H in the figure, the outgoing horizontal laser line is consistent with the X direction) 2, vertical line laser (indicated by V in the figure, the outgoing vertical laser line is consistent with the Y direction) 3 , a receiving screen 4, and an interferometer 5, a plane folding mirror 6 and a parabolic mirror 7 arranged in sequence along the optical path; the plane folding mirror 6 and the parabolic mirror 7 form a collimator; the collimator is arranged on a structural frame 1; the interferometer 5 is arranged at the focal point of the collimator; the exit end face of the structural frame 1 is provided with an e...

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Abstract

The invention relates to an alignment device and method, in particular to a device and method for aligning the optical axis of a parallel light tube and the optical axis of an optical machine system in a stray light test. The purpose of the present invention is to solve the problem of complex device structure and high cost in the self-collimation aiming method in the prior art, low efficiency and high operation difficulty in the method of indirectly extracting the optical axis through the cube mirror, and the existence of the focus judgment method of the system to be tested can only be judged qualitatively And it is only applicable to the technical problem of the pure optical system, providing a device and method for aligning the optical axis of the collimator and the optical axis of the optical mechanical system in the stray light test. The collimator consists of a planar folding mirror and a parabolic mirror and is set in the structural frame; both the horizontal line laser and the vertical line laser are installed on the structural frame and the outgoing laser lines pass through the X-axis reference plane mirror and the X-axis reference plane mirror of the optical machine system to be measured respectively The Y-axis reference plane specularly reflective, transmissive receiving screen is disposed in the common area of ​​the horizontal and vertical laser lines and the respective reflected laser lines. The method is carried out using the device.

Description

technical field [0001] The invention relates to an alignment device and method, in particular to a device and method for aligning the optical axis of a parallel light tube and the optical axis of an optical machine system in a stray light test. Background technique [0002] Collimator is the most basic optical instrument in optical calibration and inspection. Collimator and light source can provide infinite collimation target, which is used to simulate space target with different characteristics, such as in stray light test (that is, point source transmission In the stray light test, referred to as the stray light test), since the transmittance curve of the point source is the angular distribution function of the stray light of the optomechanical system to be tested, it is necessary to align the collimator with the optical axis of the light source to match the simulated infinity Stray light (stray light) is radiated, and then the optical axis of the collimator is calibrated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02G02B27/62G02B7/00
CPCG01M11/0207G02B7/003G02B27/62
Inventor 陈钦芳薛要克马占鹏沈阳林上民刘美莹
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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