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Adjustable beam lighting with LED matrix and lens array
Author(s) -
Zhang Yuning,
Tang Jinglang,
Wang Jieyu,
Liu Ningning,
Wang Feixia,
Geng Di
Publication year - 2017
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.597
Subject(s) - lens (geology) , fresnel lens , optics , led lamp , light emitting diode , computer science , ray tracing (physics) , beam (structure) , rgb color model , matrix (chemical analysis) , power (physics) , physics , materials science , computer vision , composite material , quantum mechanics
An adjustable beam lighting solution is coming widely on demand for different applications with improved energy efficiency, reduced light pollution, or enriched decorative effects. A Matrix Lighting configuration, which mainly consists of a light‐emitting diode matrix and a lens array, is proposed as a promising adjustable beam lighting solution. It easily builds up the source‐target mapping based on the integral imaging principle, and it could adjust the light beam and shape freely and timely. The basic configuration, the general design rules with imaging optics, and the optimization approaches based on ray tracing were presented. An example lighting system consists of a 32 × 32 × RGB light‐emitting diode matrix, and the 8 × 8 Fresnel lens array is demonstrated, which accomplishes a localized lighting with addressable regions for power saving. It can also project colorful patterns on the ground or a wall for atmosphere heightening.