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29 March 1996 New ANSI/IEC standard for projectors
Leonid Shapiro
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Proceedings Volume 2650, Projection Displays II; (1996) https://doi.org/10.1117/12.237015
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States
Abstract
The educational, business and military community has indicated a need for information dealing with the performance of projection equipment. Systems which present pictorial and alphanumeric video information to groups are well known. Many technologies are available, each with characteristic performance for brightness, resolution and color rendition. The end- user is primarily interested in the perceptual quality rather than what technology is used. The current standard (NAPM IT7.228 - 1996) addresses this need by providing a specification to describe parameters and performance characteristics that allow one to compare fixed resolution systems in a meaningful way. Results should be available with a minimum number of measurements and expressed in common terms. This standard deals only with test methods and specifying terms for basic characteristics of front and rear projectors that use fixed resolution spatial light modulators (pixel based), such as LCD (liquid crystal devices) or digital mirror devices. This standard also could be applied to fixed resolution systems such as overhead projectors with LCD based data displays.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Leonid Shapiro "New ANSI/IEC standard for projectors", Proc. SPIE 2650, Projection Displays II, (29 March 1996); https://doi.org/10.1117/12.237015
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