An automatic alignment method for Hartmann wavefront sensors

An automatic alignment and sensor technology, applied in instruments, scientific instruments, optical radiation measurement, etc., can solve problems such as time-consuming and small space, and achieve the effect of easy operation, low requirements, and convenient deployment

Active Publication Date: 2020-01-03
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual alignment of the Hartmann wavefront sensor requires the operator to have a certain technical foundation, and it takes a lot of time, and it is not suitable for some special occasions, such as strong radiation, narrow space, etc.

Method used

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  • An automatic alignment method for Hartmann wavefront sensors
  • An automatic alignment method for Hartmann wavefront sensors
  • An automatic alignment method for Hartmann wavefront sensors

Examples

Experimental program
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Embodiment Construction

[0042] specific implementation plan

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] What this embodiment adopts is the Hartmann wave sensor of microprism array structure, describes the automatic alignment device and method of a kind of Hartmann wavefront sensor, and the composition of device is as follows figure 1 As shown, the light to be measured is incident on the Hartmann wavefront sensor fixed on the five-dimensional electric adjustment frame along the Z direction, and the computer can read the slope and validity of all sub-apertures of the Hartmann wavefront sensor through the acquisition system. The sub-aperture of the Hartmann wavefront sensor used in the implementation has 24 columns and 24 rows. The image resolution of the Hartmann wavefront sensor is 1392x1040. The automatic alignment process is as follows:

[0045] 1) Place the Hartmann wavefront sensor fixed on the f...

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Abstract

The present invention discloses a Hartmann wavefront sensor automatic alignment device and method. A Hartmann wavefront sensor is fixed at a five-dimensional electric regulation rack with three-dimensional translation and two-dimensional inclination regulation, the slope and validity information of a pupil on the Hartmann wavefront sensor are obtained to calculate a regulating variable and controla regulation rack controller to regulate the electric regulation rack so as to achieve automatic alignment of the Hartmann wavefront sensor. The device and the method provided by the invention are simple, stable and easy to implement and intuitively display the regulation process and results in real time so as to reduce the requirements for usage personnel, reduce the regulation time and improvethe automatic degree of the Hartmann wavefront sensor.

Description

technical field [0001] The invention relates to an automatic alignment device and method of a Hartmann wavefront sensor, in particular to a Hartmann wavefront sensor which realizes light beam alignment simply, quickly and with a high degree of automation. Background technique [0002] The Hartmann wavefront sensor is a commonly used optical wavefront detector, which can measure the phase difference between the measured wavefront and the reference wavefront, and is widely used in beam diagnosis, astronomical imaging, biomedical imaging, beam control and Fields related to adaptive optics. Before using the Hartmann wavefront sensor, it is necessary to place the Hartmann wavefront sensor at a position that is conjugate to the wavefront to be measured, and to achieve the alignment of the pupil and the tilt. In actual work, the conjugate position is easy to ensure, but the pupil and tilt are often not in the proper position, and the effective wavefront measurement needs to be ali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J9/00
CPCG01J9/00G01J2009/002
Inventor 杨泽平李恩德凡木文施宁平魏凌
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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