Deconvolution method in designing freeform lens array for structured light illumination

作者：Ma Donglin; Feng Zexin; Liang Rongguang^*

来源：Applied Optics, 2015, 54(5): 1114-1117.

DOI：10.1364/AO.54.001114

We have developed a deconvolution freeform lens array design approach to generate high-contrast structured light illumination patterns. This method constructs the freeform lens array according to the point response obtained by deconvoluting the prescribed illumination pattern with the blur response of the extended light source. This design method is more effective in designing a freeform lens array to achieve accurate structured light patterns. For a sinusoidal fringe pattern, the contrast ratio can be as high as 97%, compared to 62% achieved by the conventional ray mapping method.

• 出版日期2015-2-10
• 单位清华大学