Power Allocation for Uniform Illumination with Stochastic LED Arrays

Varma G, V S S P and Rayapati, S and Sharma, Vandana and Kumar, A and G V V, Sharma (2017) Power Allocation for Uniform Illumination with Stochastic LED Arrays. Optics Express, 25 (8). pp. 8659-8669. ISSN 1094-4087

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Abstract

Light has traditionally been used for making objects visibl e to the naked eye. Lately, there has been tremendous interest in using it for free space communication [1]. This has simultaneously been accompanied by significant interest in light emitting diodes (LEDs) that have been replacing conventional light sources in almo st all applications [2–4]. Fair amount of existing literature has focused on achieving unif orm irradiance over a planar surface [5–8], beginning with the problem of finding the opti mal LED geometry at the light source to achieve uniform irradiance [9]. This was don e by using the irradiance distributions at the closest points on the incident surface . The case of LEDs using a freeform lens with a large view angle has been considered in [ 10]. More literature on similar themes is available in [11,12].

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