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A method for calibrating the optical axis parallelism of multiple autocollimators

A technology of autocollimator and calibration method, which is applied in directions such as optical axis determination, optical performance test, lens position determination, etc., can solve problems such as inability to calibrate, and achieve the effects of cost saving, high calibration accuracy and large adjustment range.

Active Publication Date: 2022-07-08
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Abstract
  • Description
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Problems solved by technology

However, this calibration method limits the position of the two autocollimators within the clear aperture of the collimator, and the distance cannot be calibrated

Method used

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  • A method for calibrating the optical axis parallelism of multiple autocollimators
  • A method for calibrating the optical axis parallelism of multiple autocollimators
  • A method for calibrating the optical axis parallelism of multiple autocollimators

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Embodiment Construction

[0029] Attached below Figure 1-3 The present invention is described in further detail:

[0030] The invention provides a method for calibrating the optical axis parallelism of an autocollimator. The specific steps of the method are as follows:

[0031] 1) Press as figure 1 The structure shown is equipped with an autocollimator, a rotating platform and a plane reflector, and the autocollimator 1 with a cross target source is fixed on the vertical bracket, so that the light exit port is roughly downward, and the light exit port of the autocollimator 1 is in the right direction. A plane mirror 3 is placed on the lower rotating platform 2, and the pitch angle of the rotating platform 2 is adjusted so that the light beam emitted by the light pipe is reflected back by the plane mirror 3 and imaged on its own display.

[0032] 2) Rotate the rotating platform 2 on which the plane mirror 3 is placed, observe the circle amount of the cross image, adjust the pitch angle of the rotatin...

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Abstract

The invention provides a method for calibrating the positions of the optical axes of multiple autocollimators. The method includes the following steps: step 1) determining the reference and the position of the optical axes of the autocollimators to be adjusted; step 2) adjusting the autocollimation Instrument parallelism. This method can realize the calibration of the parallelism of the optical axes of multiple autocollimators by using an autocollimator, a turntable, and a plane mirror. The calibration accuracy is high, the required equipment is simple, and there is no distance limit; The aperture collimator saves costs, is not limited to the aperture range of the large aperture collimator, and has a large adjustment range.

Description

technical field [0001] The invention relates to a method for calibrating an optical device, in particular to a method for calibrating the optical axis parallelism of multiple autocollimators for assembling and testing. Background technique [0002] In the field of optical assembly and testing, it is often necessary to use an autocollimator to establish an optical axis position reference for assembly and testing of optical systems. Sometimes more than two autocollimators at different positions are required to have parallel optical axes, such as the optical axis test of binoculars. Unsure, it is impossible to judge whether the component under test is perpendicular to the optical path. To calibrate the optical axis parallelism of two or more photoelectric autocollimators in the same direction, a large-diameter collimator is required. The optical axis of the autocollimator in the opposite direction is difficult to calibrate. [0003] The existing method for adjusting the opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
CPCG01M11/0221
Inventor 孔小辉
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC