Video projector system
First Claim
1. A video projector comprising:
- a light source providing at least two discrete colors of light comprising a first color having a first wavelength range and a second color having a second wavelength range, the first wavelength range not including light having a wavelength within the second wavelength range;
a video processing engine configured to provide digital video data having a source resolution and a source frame rate; and
an optical path configured to receive the digital video data from the video processing engine and to receive light generated by the light source, the optical path comprising;
a modulating element configured to modulate light incident thereon; and
a scanning system positioned prior to the modulating element in the optical path, the scanning system configured to scan light from the different colors across the modulating element in a manner in which each color is incident on a different portion of the modulating element than any of the other colors at a particular point in time,wherein, at the particular point in time, the scanning system illuminates a first band of the modulating element with light of the first color and a second band of the modulating element, different from the first band, with light of the second color, andwherein, at another point in time later than the particular point in time, the scanning system illuminates the second band of the modulating element with light of the first color and a third band of the modulating element, different from the first band and the second band, with light of the second color.
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Accused Products
Abstract
Some embodiments provide for a video projector system having a light engine, a video processing engine, and an optical engine. The light engine can provide narrow-band laser light to the optical engine module which modulates the laser light according to video signals received from the video processing engine. Some embodiments provide for a scanning system in the optical engine configured to scan light across one or more modulating elements from two or more colors. The light from two or more colors can be scanned across the modulating element such that the two or more colors are incident at different locations on the element at a particular time. Systems and methods for reducing speckle are presented in conjunction with the modular laser projector system.
95 Citations
12 Claims
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1. A video projector comprising:
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a light source providing at least two discrete colors of light comprising a first color having a first wavelength range and a second color having a second wavelength range, the first wavelength range not including light having a wavelength within the second wavelength range; a video processing engine configured to provide digital video data having a source resolution and a source frame rate; and an optical path configured to receive the digital video data from the video processing engine and to receive light generated by the light source, the optical path comprising; a modulating element configured to modulate light incident thereon; and a scanning system positioned prior to the modulating element in the optical path, the scanning system configured to scan light from the different colors across the modulating element in a manner in which each color is incident on a different portion of the modulating element than any of the other colors at a particular point in time, wherein, at the particular point in time, the scanning system illuminates a first band of the modulating element with light of the first color and a second band of the modulating element, different from the first band, with light of the second color, and wherein, at another point in time later than the particular point in time, the scanning system illuminates the second band of the modulating element with light of the first color and a third band of the modulating element, different from the first band and the second band, with light of the second color. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification