Share Email Print

Proceedings Paper

Efficient 3M PBS enhancing miniature projection optics
Author(s): Zhisheng Yun; Timothy Nevitt; Stephen Willett; Dave Mortenson; John Le; Erin McDowell; Susan Kent; Timothy Wong; Gilles J. Beniot; Andrew Ouderkirk
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Over the past decade, 3M has developed a number of mobile projectors, with a goal towards providing the world’s smallest, most efficient projection systems. Compact size and efficiency are required characteristics for projection systems used in mobile devices and more lately, in augmented reality systems. In this paper we summarize the main generations of 3M light engine optical designs. We present the optical architectures of four light engines, including the rationale behind the illumination designs and the projection systems. In particular, we describe various configurations relating to the 3M polarizing beam splitter (PBS) which is key to enhanced efficiency of the miniature projection systems.

Paper Details

Date Published: 28 September 2016
PDF: 8 pages
Proc. SPIE 9947, Current Developments in Lens Design and Optical Engineering XVII, 99470N (28 September 2016); doi: 10.1117/12.2240787
Show Author Affiliations
Zhisheng Yun, 3M Co. (United States)
Timothy Nevitt, 3M Co. (United States)
Stephen Willett, 3M Co. (United States)
Dave Mortenson, 3M Co. (United States)
John Le, 3M Co. (United States)
Erin McDowell, 3M Co. (United States)
Susan Kent, 3M Co. (United States)
Timothy Wong, 3M Co. (United States)
Gilles J. Beniot, 3M Co. (United States)
Andrew Ouderkirk, 3M Co. (United States)

Published in SPIE Proceedings Vol. 9947:
Current Developments in Lens Design and Optical Engineering XVII
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?