Deconvolution method in designing freeform lens array for structured light illumination

Donglin Ma; Zexin Feng; Rongguang Liang

doi:10.1364/AO.54.001114

Deconvolution method in designing freeform lens array for structured light illumination

Donglin Ma, Zexin Feng, Rongguang Liang

Optical Sciences

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	1114-1117
Number of pages	4
Journal	Applied optics
Volume	54
Issue number	5
DOIs	https://doi.org/10.1364/AO.54.001114
State	Published - Feb 10 2015

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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abstract = "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.",

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AU - Feng, Zexin

AU - Liang, Rongguang

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AB - 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.

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Deconvolution method in designing freeform lens array for structured light illumination

Abstract

ASJC Scopus subject areas

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