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Proceedings Paper

575-W long-life metal halide lamp suitable for data projector
Author(s): Masayuki Matsumoto; Koji Kawai
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Paper Abstract

Recently, progress has been made in the development of projectors used for large screen displays. Projection systems employing Metal Halide lamps as a light source, demonstrate unique and desirable features such as longer life and high luminous efficiency. These features are especially important for data projectors. Compared to conventional lamps, Metal Halide lamps have shorter arc lengths and higher color-rendering characteristics, resulting in overall superior performance. For the Hamamatsu 575 W Metal Halide lamp, we have modified the electrodes and chemical composition of the Metal Halide, as well as the glass envelope, all of which result in improved performance. We have extended the average life to 3000 hours or longer, for a compact, single-bulb, projection-type, 575 W lamp.

Paper Details

Date Published: 29 March 1996
PDF: 5 pages
Proc. SPIE 2650, Projection Displays II, (29 March 1996); doi: 10.1117/12.237021
Show Author Affiliations
Masayuki Matsumoto, Hamamatsu Corp. (Japan)
Koji Kawai, Hamamatsu Photonics (Japan)


Published in SPIE Proceedings Vol. 2650:
Projection Displays II
Ming Hsien Wu, Editor(s)

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