Improved two-dimensional orthogonal cylindrical lens arrays optical system with controllable focus profile for uniform irradiation

Jianzhou Zheng; Qingxu Yu; Bin Dong; Xiaojun Cao; Shouhua Guan; Qi Yang

doi:10.1117/12.830816

20 May 2009 Improved two-dimensional orthogonal cylindrical lens arrays optical system with controllable focus profile for uniform irradiation

Jianzhou Zheng, Qingxu Yu, Bin Dong, Xiaojun Cao, Shouhua Guan, Qi Yang

Author Affiliations +

Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72820Y (2009) https://doi.org/10.1117/12.830816
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

A novel orthogonal cylindrical lens arrays (OCLA) system has been proposed to obtain two-dimensional (2D) uniform irradiation with controllable focus width and transformation of beam-shape at the same time. The system is composed of two pairs of mutual OCLA and aspheric lens. Based on adaxial matrix optics and scalar quantity diffraction integral theory, the principle of this system with controllable focus profile is analyzed and optimum design of system parameter are presented in detail respectively. The simulated results show that by a suitable choice of system parameters two-dimensional uniform focusing of laser beams with controllable focus width from several hundred microns to several millimeters can be achieved. And the system converts a circular laser beam into a flat-top square focal spot of steeper edges without side lobes. In order to confirm our theoretical considerations, with Zemax optical design software, confirm regular focus width with the variation of the distance between two groups of mutual OCLA, the shape and intensity distribution of focal spot is confirmed in agreement quite well with theory.

Citation Download Citation

Jianzhou Zheng, Qingxu Yu, Bin Dong, Xiaojun Cao, Shouhua Guan, and Qi Yang "Improved two-dimensional orthogonal cylindrical lens arrays optical system with controllable focus profile for uniform irradiation", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72820Y (20 May 2009); https://doi.org/10.1117/12.830816

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