Abstract

A secondary optical lens was designed and investigated in three-dimensional (3D) space, which was far more accurate than a two-dimensional space in far-field lighting. The shape of the lens surface was from numerical solutions to a group of equations based on source-target mapping; calculating time was only $1.6\mathrm{s}$. Neglecting absorption and scattering loss, the main results show that, for circular lighting, light efficiency can reach as high as 95%, and uniformity, which is the ratio of the minimum illuminance to average illuminance, is 92.2%. For rectangular lighting, light efficiency can reach 83.6% and uniformity can reach 66.7%. Performance of lenses under different parameters was studied to provide direct references for production and application.

© 2011 Optical Society of America

Freeform lens design for light-emitting diode uniform illumination by using a method of source–target luminous intensity mapping

Jin-Jia Chen, Ze-Yu Huang, Te-Shu Liu, Ming-Da Tsai, and Kuang-Lung Huang
Appl. Opt. 54(28) E146-E152 (2015)

Automated optimization of an aspheric light-emitting diode lens for uniform illumination

Xiaoxia Luo, Hua Liu, Zhenwu Lu, and Yao Wang
Appl. Opt. 50(20) 3412-3418 (2011)

Optical flux partition method for high uniformity illumination of a refractive lens

Hsun-Ching Hsu and Pin Han
Appl. Opt. 53(29) H14-H19 (2014)

Design and prototyping of highly-collimated long-distance optical systems with an LED light source

Chen Gong, Haiping Xu, Chen Xu, Jinhua Liang, and Yajie Mu
Appl. Opt. 59(28) 8724-8732 (2020)

Condensing optical system design using a light guide–cylindrical hybrid lens

Kyong-Il An, Myong-Song Kang, Yong-Chol Kim, and Sok-Bong Ro
Appl. Opt. 61(7) 1750-1756 (2022)