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Designing freeform TIR optical elements using supporting quadric method
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DOI：10.1364/OE.25.023465.png)
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Abstract
En 中文
The supporting quadric method (SQM) is a versatile method for the design of a wide class of freeform optical elements. In the present work, a novel SQM-based approach for the computation of total internal reflection (TIR) optical elements generating arbitrary narrow-angle light distributions is proposed. High performance of the presented method is confirmed by two designed optical elements: the first one forms an illuminance distribution in a square region with angular size of 17 degrees, and the second one generates a bat-shaped uniformly illuminated area with an angular size of 43.6 degrees x 22.6 degrees. The lighting efficiencies in both cases exceed 90%, and the relative root-mean-square deviations of the generated light distributions from the required ones are less than 6%. (C) 2017 Optical Society of America
Keywords:
LENS DESIGN
UNIFORM ILLUMINANCE
SYSTEM
LIGHT
TARGET
COLLIMATOR
COMPACT
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