Abstract
An effective design method of freeform micro lens array is presented for shaping varied laser beams into prescribed rectangular illumination. The variable separation mapping is applied to design concave freeform surfaces for constructing a freeform lens array. Several dedicated examples show that the designed freeform optical lens array can achieve a prescribed rectangular illumination pattern, especially without considering the initial states of incident laser beams. Both high collection efficiency and good spatial uniformity can be available simultaneously. Tolerance analysis is also performed to demonstrate that this optical device can well avoid fabricating difficulty in actual applications.
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References
A. J. Pinkerton, Optics & Laser Technology 78, 25 (2016).
T. Silvestre, J. Francisco, L. Maigyte and M. Malinauskas, Physical Review A 84, 033812–0338121 (2013).
N. Madamopoulos and F. Papageorgiou, Journal of Display Technology 10, 832 (2014).
E. Chen, R. Wu and T. Guo, Optics Communications 321, 78 (2014).
N. Koichiro and S. Kenichiro, SID Symposium Digest of Technical Papers 46, 704 (2015).
Z. B. Wei, L. H. Yang and Y. Guo, Journal of Optoelectronics ·Laser 26, 1967 (2015). (in Chinese)
R. M. Wu, P. Liu, Y. Q. Zhang, Z. R. Zheng, H. F. Li and X. Liu, Opt. Express 21, 20974 (2013).
E. Chen and R. Wu, Opt. Eng. 54, 065103 (2015).
H. Wua, X. Zhang and P. Geb, Optics & Laser Technology 72, 79 (2015).
A. Bäuerle, A. Bruneton, R. Wester, J. Stollenwerk and P. Loosen, Opt. Express 20, 14477 (2012).
P. J. Smilie and T. J. Suleski, Opt. Lett. 36, 4170 (2011).
K. C. Lin, Optical Review 21, 639 (2014).
W. Yan and Z. Guo, Journal of Optoelectronics·Laser 10, 1878 (2014). (in Chinese)
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This work has been supported by the National Natural Science Foundation of China (No.61405037), and the Science and Technology Project of Fujian Province (No.2015H4014).
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Chen, Eg., Huang, Jm., Guo, Tl. et al. A laser beam shaper for homogeneous rectangular illumination based on freeform micro lens array. Optoelectron. Lett. 12, 253–256 (2016). https://doi.org/10.1007/s11801-016-6037-y
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DOI: https://doi.org/10.1007/s11801-016-6037-y