Iterative wavefront tailoring to simplify freeform optical design for prescribed irradiance

被引：42

作者：

Feng, Zexin ^{[1
]}

Cheng, Dewen ^{[1
]}

Wang, Yongtian ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Sch Opt & Photon, Beijing Engn Res Ctr Mixed Real & Adv Display, Beijing 100081, Peoples R China

[2] AICFVE Beijing Film Acad, 4 Xitucheng Rd, Beijing 100088, Peoples R China

来源：

OPTICS LETTERS | 2019年 / 44卷 / 09期

基金：

中国国家自然科学基金;

关键词：

ILLUMINATION OPTICS; SURFACE DESIGN; FORMULATION;

D O I：

10.1364/OL.44.002274

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The direct formulation of a freeform optical surface for producing a prescribed irradiance from a point source is very complicated. Instead of directly determining the freeform optical surfaces, we derive a general equation of a parameterized outgoing wavefront, regardless of the structure of the optical element. A separate process is employed to construct the freeform optics following the solution of the wavefront equation. We iteratively revise the wavefront and accordingly update the freeform optics to improve performance. The new method combines two features: (i) the formula derivation process is simplified, and (ii) it could flexibly generate a variety of freeform optical structures with high accuracy. (C) 2019 Optical Society of America

引用

页码：2274 / 2277

页数：4

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