In this paper, we propose a method combining a deconvolution algorithm and a feedback modification to design a freeform lens for structured light illumination. The deconvolution algorithm can alleviate the blur effect caused by the extended light source and the feedback modification can further improve the quality of the structured light by iteration. A lens for a linear sinusoidal pattern is designed by the proposed method. Simulation results show the contrast is 89%, compared to 57% achieved by the conventional design method.
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References
1.
CogswellCJ. Doubling the lateral resolution of wide-field fluorescence microscopy using structured illumination. Proceedings of the SPIE2000; 3919: 141–150.
2.
FedosseevRBelyaevYFrohnJStemmerA. Structured light illumination for extended resolution in fluorescence microscopy. Optics and Lasers in Engineering2005; 43: 403–414.
3.
ZwickSHeistSSteinkopfRHuberSKrauseS. 3D phase-shifting fringe projection system on the basis of a tailored free-form mirror. Applied Optics2013; 52: 3134–3146.
4.
GengJ. Structured-light 3D surface imaging: a tutorial. Advances in Optics and Photonics2011; 3: 128–160.
NeilMAJuskaitisRWilsonT. Method of obtaining optical sectioning by using structured light in a conventional microscope. Optics Letters1997; 22: 1905–1907.
7.
KnerPChunBBGriffisERWinotoLGustafssonMG. Super-resolution video microscopy of live cells by structured illumination. Nature Methods2009; 6: 339–342.
8.
ZhangXLiuD. Freeform lenses for illumination of specific shapes in (u,v) coordinate system. Optical Review2016; 23: 77–83.
9.
MaDLiangRFengZ. Deconvolution method in designing freeform lens array for structured light illumination. Applied Optics2015; 54: 1114–1117.
10.
LuoYFengZHanYLiH. Design of compact and smooth free-form optical system with uniform illuminance for LED source. Optics Express2010; 18: 9055–9063.
SituWHanYLiHLuoY. Combined feedback method for designing a free-form optical system with complicated illumination patterns for an extended LED source. Optics Express2011; 19(Suppl 5): A1022–A1030.
13.
YangTZhuJWuXJinG. Direct design of freeform surfaces and freeform imaging systems with a point-by-point three-dimensional construction-iteration method. Optics Express2015; 23: 10233–10246.
14.
HouWZhuJYangTJinG. Construction method through forward and reverse ray tracing for a design of ultra-wide linear field-of-view off-axis freeform imaging systems. Journal of Optics2015; 17: 055603–055603.
15.
ZhuJYangTJinG. Design method of surface contour for a freeform lens with wide linear field-of-view. Optics Express2013; 21(22): 26080–26092.
16.
RiserAPCassarlyWG. Analysis of single lens arrays using convolution. Optical Engineering2001; 40: 805–813.
17.
RichardsonWH. Bayesian-based iterative method of image restoration. Journal of the Optical Society of America1972; 62: 55–59.
18.
LucyLB. An iterative technique for the rectification of observed distributions. Astronomical Journal1974; 79: 745–745.
19.
IngaramoMYorkAGHoogendoornEPostmaMShroffHPattersonGH. Richardson-Lucy deconvolution as a general tool for combining images with complementary strengths. Chemphyschem2014; 15(4): 794–800.
