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Is the Measurement of Front-Projection Characteristics an Impossible Task
Published
Author(s)
Paul A. Boynton, Edward F. Kelley
Abstract
Specifications of electronic projection displays, such as contrast ratio, are often based on measurements made in ideal darkroom conditions. However, not everyone has access to such a facility. Stray light from other sources in the room (both direct and reflected off surfaces, such as walls and tables) as well as back-reflections, contribute to the measured value and give an inaccurate measurement of the projector's light output. So how can we verify that the projector that we have purchased is operating according to its specifications?
Boynton, P.
and Kelley, E.
(1998),
Is the Measurement of Front-Projection Characteristics an Impossible Task, Information Display, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=14291
(Accessed September 25, 2023)