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Proceedings Paper

New high-resolution reflective liquid crystal light valve projector: Electrohome DLV 1280
Author(s): John W. Bowron; Terry C. Schmidt
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Paper Abstract

A new projection system using three IBM 1.3 inch diagonal reflective light valve panels will be described. The 1280 X 1024 pixel reflective panels achieve a high aperture ratio of greater than 90 percent, and have a very fast response time to support high quality video images. The light engine uses plate dichroic mirrors to split the white light into red green and blue channels, an X-cube color combiner is used to recombine the images into a single projection lens. A polarizing beam splitting cube is used for each channel to direct polarized light onto the panels and to act as analyzers for the polarized output. The system, which uses a 500 watt Xenon lamp, will produce more than 3 times the ANSI lumens of most CRT projectors. This lamp is also dimmable allowing the user to match brightness levels in multiple screen applications, while maintaining color temperature. Key performance characteristics will be discussed and a light budget of system losses will be presented.

Paper Details

Date Published: 17 April 1998
PDF: 11 pages
Proc. SPIE 3296, Projection Displays IV, (17 April 1998); doi: 10.1117/12.305519
Show Author Affiliations
John W. Bowron, Electrohome Ltd. (Canada)
Terry C. Schmidt, Electrohome Ltd. (Canada)

Published in SPIE Proceedings Vol. 3296:
Projection Displays IV
Ming Hsien Wu, Editor(s)

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