Optical design in illumination system of digital light processing projector using laser and gradient-index lens

Rui, Dawei; Lin, Zulun; Qi, Kangcheng; Chen, Wenbin

doi:doi:10.1117/1.OE.51.1.013004

GENERAL INFORMATION

You are not logged in Logged Out Log In

Optical Engineering / Volume 51 / Issue 1 / Optical System Design

Previous Article | Next Article

Optical design in illumination system of digital light processing projector using laser and gradient-index lens

Opt. Eng. 51, 013004 (Jan 20, 2012); http://dx.doi.org/10.1117/1.OE.51.1.013004

Alerts
- Alert Me When Cited
- Alert Me When Corrected
Tools
Share
- Email Abstract
- Connotea
- CiteULike
- del.icio.us
- BibSonomy
- Tweet this Article
- Add to Facebook

Abstract

References (11)

Citing Articles (27)

Dawei Rui, Zulun Lin, Kangcheng Qi, and Wenbin Chen

University of Electronic Science and Technology of China, School of Opto-electronic Information, Chengdu, Sichuan, China, 610054

A novel structure of illumination system based on laser sources and gradient-index (GRIN) lens arrays for single-plate digital light processing (DLP) projector is proposed. Under the evaluation of light collection efficiency and illumination uniformity, we designed two different architectures of GRIN lens arrays: the unit lens cross section being either square or circular. Also, we designed the one-to-one coupling mechanism between GRIN lens array and Gaussian beam array. By means of three-dimensional modeling and ray tracing, we simulated the optical characteristics of illumination system, and the optical parameters are evaluated. Results show that the total light collection efficiency is 37.9%, the illumination uniformity is 89.7% and the volume is only 12.4 cm³. Thus we improved optical characteristics and reduced the physical dimension of DLP optical engine.

History

Received Jun 13, 2011
Revised Oct 16, 2011
Published online Jan 20, 2012

Digital Object Identifier

http://dx.doi.org/10.1117/1.OE.51.1.013004

Citation

Dawei Rui, Zulun Lin, Kangcheng Qi and Wenbin Chen, "Optical design in illumination system of digital light processing projector using laser and gradient-index lens", Opt. Eng. 51, 013004 (Jan 20, 2012); http://dx.doi.org/10.1117/1.OE.51.1.013004