21 November 2007 Design of a CGH wavefront generator for aspheric testing with wavefront tracing method
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Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 672362 (2007) https://doi.org/10.1117/12.783863
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China
Abstract
Aspheric surfaces are widely used in optical systems. Advanced testing technology is needed for the production of aspheric surfaces. Compensation method is a popular method for testing aspheric surfaces. In order to realize the certification of compensator that is composed of multiple lenses, reflective CGH whose diameter is smaller than that of aspheric surface is used as aspherical simulator to calibrate the compensator. The challenge of realizing the accurate certification of the compensator is of high accuracy design of CGH. According to optical propagation theory, wavefront tracing method is proposed in this dissertation. The derivation process of wavefront tracing method is given. By using this method, the phase function of CGH can be directly acquired. Simulators of many different aspheric surfaces are designed. The design results prove the feasibility of wavefront tracing method. Compared to ray tracing method, the wavefront tracing method can simplify the design process and improve the design accuracy.
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Yuejing Qi, Ping Wang, Yi Jiang, "Design of a CGH wavefront generator for aspheric testing with wavefront tracing method", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 672362 (21 November 2007); doi: 10.1117/12.783863; https://doi.org/10.1117/12.783863
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