Image projection apparatus, method of controlling image projection apparatus, and storage medium
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United States of America Patent
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Jan 23, 2018
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app pub date -
Sep 17, 2015
filing date -
Oct 9, 2014
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Abstract
An image projection apparatus includes a light source to emit light, a light modulator to modulate intensity of the light emitted from the light source for generating a projection image, and an image luminance controller to control the light modulator to maintain brightness of the projection image projected on a projection face at a substantially constant level during a given time period of the image projection apparatus. The given time period is from one time point when power supply to the image projection apparatus is started to another time point when a power level for driving the light source is increased to a given power level.
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