Optical system with array light source
First Claim
1. A projection optical system, comprising:
- a light source array;
a projection gate;
a projection lens configured to project an image of the projection gate, wherein the projection gate is located between the light source array and the projection lens; and
a relay lens group located between the light source array and the projection gate, whereinthe relay lens group is configured to relay an image of a field stop location,the light source array is located in a volume contiguous to the field stop location, andthe relay lens group is configured to prevent the projection lens from projecting an image of the light source array.
1 Assignment
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Accused Products
Abstract
An optical system, projector and method are provided that include a projection gate between a light source array and a projection lens. The projection lens projects an image of the projection gate. A relay lens group between the light source array and the projection gate prevents the projection lens from projecting an image of the light source array. A lamp housing is provided for use with a projector housing. The lamp housing includes a light source array and a relay lens group located between the light source array and a projection gate in the projector housing. An illumination source for optical fibers is provided that includes a relay lens group between a light source and a coupling in a housing. The relay lens group prevents an image of the light source from being formed at input ends of optical fibers positioned in the coupling.
52 Citations
28 Claims
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1. A projection optical system, comprising:
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a light source array; a projection gate; a projection lens configured to project an image of the projection gate, wherein the projection gate is located between the light source array and the projection lens; and a relay lens group located between the light source array and the projection gate, wherein the relay lens group is configured to relay an image of a field stop location, the light source array is located in a volume contiguous to the field stop location, and the relay lens group is configured to prevent the projection lens from projecting an image of the light source array. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A projector, comprising:
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a housing; a light source array inside the housing; a projection gate; a projection lens configured to project an image of the projection gate, wherein the projection gate is located between the light source and the projection lens; and a relay lens group inside the housing, the relay lens group located between the light source array and the projection gate, wherein the relay lens group is configured to relay an image of a field stop location, the light source array is located in a volume contiguous to the field stop location, and the relay lens group is configured to prevent the projection lens from projecting an image of the light source array. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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positioning a light source array to illuminate a projection gate; configuring a projection lens to project an image of the projection gate, wherein the projection gate is located between the light source array and the projection lens; and configuring a relay lens group located between the light source array and the projection gate to; relay an image of a field stop location, wherein the light source array is located in a volume contiguous to the field stop location, and prevent the projection lens from projecting an image of the light source array. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A lamp housing for use with a projector housing comprising a projection lens projecting an image of a projection gate, the lamp housing comprising:
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a light source array; and a relay lens group located between the light source array and the projection gate, wherein the relay lens group is configured to relay an image of a field stop location, the light source array is located in a volume contiguous to the field stop location, and the relay lens group is configured to prevent the projection lens from projecting an image of the light source array. - View Dependent Claims (23, 24, 25)
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26. An optical system, comprising:
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a light source configured to project a beam of light; a filter apparatus configured to selectively move at least one variable density filter across the beam of light; a coupling; and a relay lens group located between the light source and the coupling, wherein the relay lens group is configured to relay an image of a field stop location, the filter apparatus is located in a volume contiguous to the field stop location, and the relay lens group is configured to prevent an image of the filter apparatus from being formed at input ends of a plurality of optical fibers positioned in the coupling.
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27. An illumination source for a plurality of optical fibers, comprising a housing, the housing comprising:
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a coupling; a light source configured to project a beam of light; a filter apparatus configured to selectively move at least one variable density filter across the beam of light; and a relay lens group located between the light source and the coupling, wherein the relay lens group is configured to relay an image of a field stop location, the filter apparatus is located in a volume contiguous to the field stop location, and the relay lens group is configured to prevent an image of the filter apparatus from being formed at input ends of a plurality of optical fibers positioned in the coupling.
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28. A method, comprising:
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providing a light source configured to project a beam of light; providing a filter apparatus configured to selectively move at least one variable density filter across the beam of light; and configuring a relay lens group between the light source and a coupling, wherein the relay lens group is configured to; relay an image of a field stop location, wherein the filter apparatus is located in a volume contiguous to the field stop location, and prevent an image of the filter apparatus from being formed at input ends of a plurality of optical fibers located in the coupling.
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Specification