Refractive-diffractive hybrid optical element for true beam smoothing

Qiaofeng Tan; Yingbai Yan; Guofan Jin

doi:10.1117/1.1617309

1 November 2003 Refractive-diffractive hybrid optical element for true beam smoothing

Qiaofeng Tan, Yingbai Yan, Guofan Jin

Optical Engineering, Vol. 42, Issue 11, (November 2003). https://doi.org/10.1117/1.1617309

A refractive-diffractive hybrid optical element for true beam smoothing is designed with the precise design method. The intensity of any point on the focal plane is fully filled with the required demand, besides the sampling points used in the optimization. An aspheric refractive surface gives a good initial intensity distribution on the focal plane and can decrease the phase depth of the diffractive surface. After the optimization, the phase depth of the diffractive surface is smaller than 1.1 π, which is correspondingly easy to fabricate.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Qiaofeng Tan, Yingbai Yan, and Guofan Jin "Refractive-diffractive hybrid optical element for true beam smoothing," Optical Engineering 42(11), (1 November 2003). https://doi.org/10.1117/1.1617309

Published: 1 November 2003

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KEYWORDS

Diffractive optical elements

Distortion

Optical components

Optical design

Digital filtering

Optical engineering

Aspheric lenses

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