Color gamut improvement in presence of ambient light
First Claim
Patent Images
1. A method comprising:
- controlling ambient light to produce controlled ambient light having predefined optical spectrum characteristics in order to effect a modified color gamut of a reflected image that is reflected from a projector screen that reflects light of substantially all wavelengths so that the light of substantially all wavelengths contained in (a) the controlled ambient light and (b) a projected image reaches the eyes of a viewer after being reflected, the reflected image comprising reflected portions of the controlled ambient light and reflected portions of the projected image directed from an image projector to the projector screen, the reflected image having a first color gamut in the presence of uncontrolled ambient light, the reflected image having the modified color gamut in the presence of the controlled ambient light.
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Abstract
Methods, apparatus and system for controlling ambient light to produce controlled ambient light having predefined optical spectrum characteristics in order to effect a modified color gamut of a reflected image that is reflected from a surface. The reflected image including reflected portions of the controlled ambient light and reflected portions of a projected image directed from an image projector to the surface. The reflected image having a first color gamut in the presence of uncontrolled ambient light. The reflected image having the modified color gamut in the presence of the controlled ambient light.
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Citations
41 Claims
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1. A method comprising:
controlling ambient light to produce controlled ambient light having predefined optical spectrum characteristics in order to effect a modified color gamut of a reflected image that is reflected from a projector screen that reflects light of substantially all wavelengths so that the light of substantially all wavelengths contained in (a) the controlled ambient light and (b) a projected image reaches the eyes of a viewer after being reflected, the reflected image comprising reflected portions of the controlled ambient light and reflected portions of the projected image directed from an image projector to the projector screen, the reflected image having a first color gamut in the presence of uncontrolled ambient light, the reflected image having the modified color gamut in the presence of the controlled ambient light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a projector screen that reflects light of substantially all wavelengths so that the light of substantially all wavelengths contained in (a) controlled ambient light and (b) a projected image reaches the eyes of a viewer after being reflected; an image projector to provide the projected image; and an element to control ambient light, from an ambient light source, to provide the controlled ambient light having predefined optical spectrum characteristics in order to effect a modified color gamut of a reflected image that is reflected from the projector screen, the reflected image comprising reflected portions of the controlled ambient light and reflected portions of the projected image directed from the image projector to the projector screen, the reflected image having a first color gamut in the presence of uncontrolled ambient light, the reflected image having a modified color gamut in the presence of the controlled ambient light. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method comprising:
controlling ambient light to produce controlled ambient light having color point chromaticity coordinates within a predetermined range in order to effect a modified color gamut of a reflected image that is reflected from a projector screen, the reflected image comprising reflected portions of the controlled ambient light and reflected portions of a projected image directed from an image projector to the projector screen, the reflected image having a first color gamut in the presence of uncontrolled ambient light, the reflected image having the modified color gamut larger than the first color gamut in the presence of the controlled ambient light. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A system comprising:
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an image projector to provide projected light; and an element to control ambient light to produce controlled ambient light having color point chromaticity coordinates within a predetermined range in order to effect a modified color gamut of a reflected image that is reflected from a screen, the reflected image comprising reflected portions of the controlled ambient light and reflected portions of a projected image directed from an image projector to the screen, the reflected image having a first color gamut in the presence of uncontrolled ambient light, the reflected image having the modified color gamut larger than the first color gamut in the presence of the controlled ambient light. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41)
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Specification