Reflective screen
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United States of America Patent
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Oct 15, 2019
Grant Date -
Aug 31, 2017
app pub date -
May 17, 2017
filing date -
Nov 27, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A screen with a high flatness where no distortion arises in a central portion of the screen can be obtained. A first thickness of a portion other than a plurality of inclined portions that reflects to the front a obliquely-incident projection light is no more than 2 times a second thickness of the inclined portion. Moreover, a width is about 1550 mm, a height is about 900 mm, and when the reflective screen is suspended so a vertically-downward pulling load is about 3 kg, in a first region that includes the central portion of the reflective screen but does not include an end portion of the reflective screen, no shift arises in an image displayed on the reflective screen between when a reference line passing through a substantially central portion of the reflective screen at an incidence angle of about 15 degrees and when the reference line is projected at an incidence angle of about 60 degrees.
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