Prescribed intensity design for extended sources in three-dimensional rotational geometry


Regulating the intensity distribution of an extended source to produce a prescribed illumination in three-dimensional (3D) rotationally symmetric geometry remains a challenging issue in illumination design. In this Letter, we present an effective method focusing on creating prescribed intensity designs for extended sources. By this method, a prescribed 3D intensity design is first converted into a two-dimensional intensity design for the extended source, a new approach is used to calculate the initial patch to generate a more stable design, and then a feedback strategy is employed to improve the performance of the aspherical lens in 3D rotational geometry. Three examples are presented to demonstrate the effectiveness of the proposed method in terms of performance and capacity for tackling complex designs.

Publication type: 
JRC-SCI Magazine
Published in: 
Optics Letters
0146-9592 - Vol. 40, 9, pp. 2130-2133
Publication date: 
May 2015
CeDInt Authors: 
Other Authors: 
Yi Qin, Hong Hua, Youri Meuret