scholarly journals Design method for nonsymmetric imaging optics consisting of freeform-surface-substrate phase elements

2020 ◽  
Vol 28 (2) ◽  
pp. 1603
Author(s):  
Yingzhe Duan ◽  
Tong Yang ◽  
Dewen Cheng ◽  
Yongtian Wang
Keyword(s):  
Design Method ◽  
Freeform Surface ◽  
Imaging Optics

scholarly journals Asymmetric Double Freeform Surface Lens for Integrated LED Automobile Headlamp

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 663
Author(s):  
Hui Zhang ◽  
Dengfei Liu ◽  
Yinwan Wei ◽  
Hong Wang
Keyword(s):  
Optical System ◽  
Design Method ◽  
Chromatic Dispersion ◽  
Electronic Devices ◽  
Color Temperature ◽  
Freeform Surface ◽  
United Nations Economic Commission ◽  
System A ◽  
Economic Commission ◽  
Key Points

We propose a design method of asymmetric double freeform surface lens for an integrated LED automobile headlamp and develop an integrated LED automobile optical system. A single asymmetric double freeform surface lens is designed to redistribute rays emitting from the light source for realizing both low and high beams. Moreover, a freeform surface reflector is used to improve the energy efficiency of high beams. The prism placed in the optical path can suppress chromatic dispersion on the edge of the target plane. Simulation and experimental results show that the illumination values and color temperature of the key points can fully meet the requirements of United Nations Economic Commission for Europe vehicle regulations (ECE) R112, 48, and 128. The volume of the whole optical system comprised of freeform surface elements is smaller than that of the low beam system of a traditional headlamp, resulting in saved space, in which other electronic devices can be installed for the safety of the driver, which indicates that the proposed method is practical in the field of automobile lighting.

scholarly journals Overview of the SMS design method applied to imaging optics

2009 ◽  
Author(s):  
Juan C. Miñano ◽  
Pablo Benítez ◽  
Wang Lin ◽  
Fernando Muñoz ◽  
José Infante ◽  
...  
Keyword(s):  
Design Method ◽  
Imaging Optics

A design method of the distortionless catadioptric panoramic imaging based on freeform surface

2014 ◽  
Author(s):  
Yi-si Wu ◽  
An Li ◽  
Chi Chen ◽  
Jun-fei Shen ◽  
Yin-xu Bian ◽  
...  
Keyword(s):  
Design Method ◽  
Freeform Surface ◽  
Panoramic Imaging

scholarly journals Progress in the SMS design method for imaging optics

2011 ◽  
Author(s):  
Wang Lin ◽  
Pablo Benítez ◽  
J. C. Miñano ◽  
José Infante ◽  
Guillermo Biot
Keyword(s):  
Design Method ◽  
Imaging Optics

Multi-fields Optimization Iterative Design Method for Freeform Surface in Ultra-short-focus Projection System

2019 ◽  
Vol 48 (3) ◽  
pp. 322001 ◽  
Author(s):  
于百华 YU Bai-hua ◽  
田志辉 TIAN Zhi-hui ◽  
苏东奇 SU Dong-qi ◽  
高松涛 GAO Song-tao ◽  
隋永新 SUI Yong-xin ◽  
...  
Keyword(s):  
Design Method ◽  
Freeform Surface ◽  
Projection System ◽  
Iterative Design ◽  
Focus Projection

Freeform surface design method combined with surface and field-of-view optimization

2018 ◽  
Vol 47 (10) ◽  
pp. 1018001
Author(s):  
姚艳霞 Yao Yanxia ◽  
袁 群 Yuan Qun ◽  
陈 露 Chen Lu ◽  
窦沂蒙 Dou Yimeng ◽  
殷慧敏 Yin Huimin ◽  
...  
Keyword(s):  
Design Method ◽  
Field Of View ◽  
Freeform Surface ◽  
Surface Design
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