Design of compact and ultra efficient aspherical lenses for extended Lambertian sources in two-dimensional geometry

Rengmao Wu, Hong Hua, Pablo Benítez, Juan C. Miñano, Rongguang Liang

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The energy efficiency and compactness of an illumination system are two main concerns in illumination design for extended sources. In this paper, we present two methods to design compact, ultra efficient aspherical lenses for extended Lambertian sources in two-dimensional geometry. The light rays are directed by using two aspherical surfaces in the first method and one aspherical surface along with an optimized parabola in the second method. The principles and procedures of each design method are introduced in detail. Three examples are presented to demonstrate the effectiveness of these two methods in terms of performance and capacity in designing compact, ultra efficient aspherical lenses. The comparisons made between the two proposed methods indicate that the second method is much simpler and easier to be implemented, and has an excellent extensibility to three-dimensional designs.

Original languageEnglish (US)
Pages (from-to)5078-5086
Number of pages9
JournalOptics Express
Volume24
Issue number5
DOIs
StatePublished - Mar 7 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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