2020
DOI: 10.1177/1477153520958457
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Design method of diffuse transmission free-form surface combined with collimation lens array

Abstract: Lighting-emitting diodes are widely applied in lighting systems, and diffusers are commonly used in systems for indirect illumination. In this paper, a design method of diffuse transmission free-form surface combined with collimation lens array is proposed. Based on the Lambertian characteristics of lighting-emitting diodes and the principle of collimation lenses, a mathematical model of diffuser with ideal diffuse transmission free-form surface is established. We propose a method of the preset collimation sur… Show more

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Cited by 3 publications
(1 citation statement)
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“…A screen is placed behind the microlens array 70mm to observe the irradiance distribution. This study used computer simulation to calculate the light energy distribution, optical efficiency, and the uniformity [19][20][21].…”
Section: Introductionmentioning
confidence: 99%
“…A screen is placed behind the microlens array 70mm to observe the irradiance distribution. This study used computer simulation to calculate the light energy distribution, optical efficiency, and the uniformity [19][20][21].…”
Section: Introductionmentioning
confidence: 99%