OPTICAL PROJECTION SUBSYSTEM
First Claim
Patent Images
1. A projection subsystem, comprising:
- a light engine that provides a light beam, the light engine including a collection lens, a collimator and at least one solid state incoherent light emitter that receives an electrical power level and that is couplable to a heat sink and that provides a light beam with an emitter luminous flux level;
an image-forming device that receives image data and that receives at least a component of the light beam, the image-forming device providing an image;
a projection lens assembly that receives the image and that provides an image projection beam having a projected luminous flux level; and
the projection subsystem has a portability efficacy that comprises a ratio of luminous flux to electrical power level of at least 3.8 lumens for 1 watt, and a projection subsystem thickness of less than 14 millimeters.
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Abstract
A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.
79 Citations
23 Claims
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1. A projection subsystem, comprising:
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a light engine that provides a light beam, the light engine including a collection lens, a collimator and at least one solid state incoherent light emitter that receives an electrical power level and that is couplable to a heat sink and that provides a light beam with an emitter luminous flux level; an image-forming device that receives image data and that receives at least a component of the light beam, the image-forming device providing an image; a projection lens assembly that receives the image and that provides an image projection beam having a projected luminous flux level; and the projection subsystem has a portability efficacy that comprises a ratio of luminous flux to electrical power level of at least 3.8 lumens for 1 watt, and a projection subsystem thickness of less than 14 millimeters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A projection subsystem, comprising:
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a light engine that provides a light beam, the light engine including a collection lens, a collimator and at least one solid state incoherent light emitter that receives an electrical power level and that is couplable to a heat sink and that provides a light beam with an emitter luminous flux level; an image-forming device that receives image data and that receives at least a component of the light beam, the image-forming device providing an image; a projection lens assembly that receives the image and that provides an image projection beam having a projected luminous flux level; and the projection subsystem has a portability efficacy wherein the electrical power level is less than 3.6 watts, and a projection subsystem thickness is less than 14 millimeters. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method comprising, comprising:
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providing a light beam from a light engine that includes a collection lens, a collimator and at least one solid state incoherent light emitter that receives an electrical power level and that is couplable to a heat sink and that provides a light beam with an emitter luminous flux level; receiving at least a component of the light beam at an image-forming device that receives image data, and providing an image from the image-forming device; receiving the image at a projection lens assembly and providing an image projection beam having a projected luminous flux level; and providing a portability efficacy that comprises a ratio of luminous flux to electrical power level of at least 3.8 lumens for 1 watt, and a projection subsystem thickness of less than 14 cubic millimeters. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification