Study on computer-aided alignment method of a three-mirror off-axis aspherical optical system

2010 ◽  
Author(s):  
Xi-ting Zhao ◽  
Wen-chun Jiao ◽  
Zhi-bo Liao ◽  
Yun Wang ◽  
Jia-yi Chen
Keyword(s):  
Optical System ◽  
Alignment Method ◽  
Computer Aided

A DETECTIVE STUDY ON PARAXIAL DIGITAL HOLOGRAPHY IN ACQUIRING THE AMPLITUDE AND PHASE SIMULTANEOUSLY

2005 ◽  
Vol 02 (02) ◽  
pp. 93-99
Author(s):  
JUN-CHANG LI ◽  
RONG-XIN GUO ◽  
MIN WANG
Keyword(s):  
Image Processing ◽  
Theoretical Model ◽  
Numerical Computation ◽  
Optical System ◽  
Digital Holography ◽  
Image Processing Techniques ◽  
Measured Object ◽  
Computer Aided ◽  
Processing Techniques

A theoretical model to actualize digital holographic detection with the help of paraxial optical system based on the inverse calculation of diffraction is introduced briefly. In addition, we proposed a method to actualize the measurement when the measured object modulates the amplitude and the phase of object light simultaneously. The simulated experimental example will be illustrated with the help of numerical computation and computer-aided image processing techniques.

Computer-aided alignment method in afocal compressed optical path system

2016 ◽  
Vol 37 (4) ◽  
pp. 607-611
Author(s):  
Yue Pengyuan ◽  
Zhao Xiting ◽  
Zhao Zhen ◽  
Wan Yuxi
Keyword(s):  
Optical Path ◽  
Alignment Method ◽  
Computer Aided ◽  
Path System

scholarly journals Study on Aided Optical Alignment by Programmable Spots Array Generated by Off-Axis Parabolic Phase Based on LCoS-SLM

2020 ◽  
Vol 10 (23) ◽  
pp. 8382
Author(s):  
Zhen Zeng ◽  
Zexiao Li ◽  
Fengzhou Fang ◽  
Xiaodong Zhang
Keyword(s):  
Liquid Crystal ◽  
Optical System ◽  
Phase Modulation ◽  
Spatial Light Modulator ◽  
Incident Light ◽  
Alignment Method ◽  
Light Modulator ◽  
Optical Alignment ◽  
Liquid Crystal On Silicon

We present an aided optical alignment method using the liquid crystal on silicon spatial light modulator (LCoS-SLM). An optical system composed of an interferometer and an LCoS-SLM was established to verify the effectiveness of the method. The system was also calibrated to solve the phase modulation nonlinear and nonuniformity problem for better performance of LCoS-SLM as an easily programmable phase compensator. The LCoS-SLM could modulate the phase of incident light precisely to generate an accurate phase desired to achieve a virtual off-axis parabolic phase to generate light spots array. Finally, the 2 × 2 light spots array generated by the optical system was used to verify its potential in optical alignment.

A Study on the Highway Alignment Method

2014 ◽  
Vol 644-650 ◽  
pp. 5009-5013
Author(s):  
Yun Wei You
Keyword(s):  
Complex Terrain ◽  
Computer Aided Design ◽  
Alignment Method ◽  
Highway Design ◽  
Existing Problems ◽  
Computer Aided ◽  
Design Software ◽  
Aided Design ◽  
Highway Alignment

By applying the model in a case, two methods of linear and curved alignment are analyzed and compared. Besides, the main existing problems and the solutions to solve them are studied. The results show that curved alignment method has obvious advantages in highway design, interchange design, and other complex terrain conditions. With a variety of computer-aided design software line appears, curved alignment method will be widely used.

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