53.2: An Optimization Design Method of LED Freeform Lens for Uniform Circular Illumination. Issue 1 (1st July 2013)

• Record Type: Journal Article
• Authors: Liu, Peng; Zheng, Zhen‐rong; Li, Hai‐feng; Liu, Xu
• Is Part Of: Digest of technical papers. Volume 44:Issue 1(2013)
• Page Start: 733
• Page End: 736
• Publication Date: 2013-07-01
• Subjects: Illumination design -- Lenses -- Light emitting diode (LED) -- Non‐imaging optics; Information display systems -- Congresses; 621.3815422
• DOI: 10.1002/j.2168-0159.2013.tb06318.x
• Languages: English
• ISSNs: 0097-966X

Abstract

Abstract: An optimization method is proposed for designing an LED freeform lens which produces a uniform circular pattern with high energy efficiency. The results of design examples show that the irradiance distribution is well controlled with excellent uniformity and energy efficiency. This optimization method can be generalized to design freeform lenses with different lighting patterns or without rotational symmetry.