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基于微透镜阵列的DMD芯片投影系统照明优化 被引量:13

Optimization of DMD Illumination System with Microlens Array
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摘要 分析了照明系统中微透镜阵列的入射光线角度及系统像差对光学利用率的影响,提出了通过修正相关参数来优化照明系统的光学利用率以及照明均匀性的方法。通过改变用于光源聚光的自由曲面透镜的面型来缩小入射角度,从而减小了由于大角度扩散造成的效率损失。并且在微透镜阵列后采用两个球面透镜代替傅里叶透镜作为积分镜片,不仅成本低廉,而且在控制像差方面更为灵活。参数优化后,设计方案的光学利用率可达60.51%,均匀性可达94.24%,验证了理论分析的可行性和有效性。 With the analysis of incident angle and system aberration of microlens array,which would affect the illumination efficiency of the optical system,the optical efficiency and illumination uniformity are optimized.The efficiency loss which is caused by large incident angle is minimized by varying the curvature radius of the free-form double-lens.Two spherical lenses are used as Fourier integrator after the microlens array to increase the system efficiency.The simulation result shows that the optical efficiency and illumination uniformity are 60.51% and 94.24%,respectively,which proves the feasibility of the theoretical analysis.
出处 《光学学报》 EI CAS CSCD 北大核心 2013年第1期187-190,共4页 Acta Optica Sinica
基金 国家科技部科技型中小企业技术创新基金(11C26211203966)资助课题
关键词 光学设计 照明系统 微透镜阵列 均匀性 数字微镜器件 optical design illumination system microlens array uniformity digital micromirror device
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  • 1Ries H, Muschaweck J. Tailored freeform optical surfaces [J]. J Opt SocAm A, 2002,19(3): 590-595.
  • 2Ries H, Muschaweck J. Tailoring freeform lenses for illumination [J].SPIE, 2001,4442: 43-50.
  • 3Benitez P, Minano J C, Blen J, et al. Simultaneous multiple surface optical design method in three dimensions [J]. Opt Eng, 2004,43(7) : 1489-1502.
  • 4Oliker V. Geometric and variational methods in optical design of reflecting surfaces with prescribed irradiance properties [J]. SPIE, 2005,5924: 592407.
  • 5Kochengin S, Oliker V, Tempski O V. On the design of reflectors with prespecified distribution of virtual sources and intensities [J]. Inverse Problems, 1998,14: 661-678.
  • 6Parkyn W A. Design of illumination lenses via extrinsic differential geometry [J]. SPIE, 1998,3428: 154-162.
  • 7Parkyn B, Pelka D. Free-form illumination lenses designed by a paseudo-rectangular lawnmower algorithm [J]. SPIE, 2006,6338: 633803.
  • 8Ding Yi, Liu Xu, Zheng Zhen-rong. Freeform LED lens for uniform illuminating [J]. Optics Express, 2008,16(7) : 12958-12966.
  • 9Wang Lin, Qian Keyuan, Luo Yi. Discontinuous free-form lens design for prescribed irradiance [J]. Applied Optics, 2007,46(18): 3716-3723.
  • 10Schruben J S. Formulation a reflector-design problem for a lighting fixture [J]. J Opt Soc Am, 1972, 62(12) : 1498-1501.

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