Image path light intensity sensing during a blanking period between a left-eye light beam and a right-eye light beam in a stereoscopic light projector
First Claim
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1. A light projection system comprising:
- a projection subsystem configured at least to project an image;
a light source subsystem configured at least to generate light directed along an image path leading to the projection subsystem; and
a light-intensity-measurement subsystem configured at least to determine an intensity of the light and comprising a light-intensity sensor in the image path;
wherein the light is stereoscopic light comprising a left-eye light beam and a right-eye light beam that follow a same path along the image path, and wherein the light-intensity sensor is configured at least to measure light intensity during a blanking period between the left-eye and right-eye light beams.
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Abstract
In a light projection system, potentially hierarchical levels of light intensity control ensure proper laser-light output intensity, color channel intensity, white point, left/right image intensity balancing, or combinations thereof. The light projection system can include a light intensity sensor in an image path, in a light-source subsystem light-dump path, in a light-modulation subsystem light-dump path, in a position to measure light leaked from optical components, or combinations thereof.
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Citations
12 Claims
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1. A light projection system comprising:
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a projection subsystem configured at least to project an image; a light source subsystem configured at least to generate light directed along an image path leading to the projection subsystem; and a light-intensity-measurement subsystem configured at least to determine an intensity of the light and comprising a light-intensity sensor in the image path; wherein the light is stereoscopic light comprising a left-eye light beam and a right-eye light beam that follow a same path along the image path, and wherein the light-intensity sensor is configured at least to measure light intensity during a blanking period between the left-eye and right-eye light beams. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for measuring light intensity generated by a light projection system, the method comprising:
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generating light from a light source subsystem, the light directed along an image path leading to a projection subsystem; determining an intensity of the light with a light-intensity sensor in the image path; wherein the light is stereoscopic light comprising a left-eye light beam and a right-eye light beam that follow a same path along the image path, and wherein the determining determines light intensity during a blanking period between the left-eye and right-eye light beams. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification