LIGHT SOURCE DEVICE AND PROJECTION DEVICE
First Claim
1. A light source device comprising:
- a plurality of first optical devices which generate red laser light;
a plurality of first optical fibers through each of which the red laser light from a corresponding one of the plurality of first optical devices is guided;
a plurality of second optical devices which generate green laser light;
a plurality of second optical fibers through each of which the green laser light from a corresponding one of the plurality of second optical devices is guided;
a plurality of third optical devices which generate blue laser light;
a plurality of third optical fibers through each of which the blue laser light from a corresponding one of the plurality of third optical devices is guided; and
a fiber bundle combiner which forms a fiber bundle by fixedly holding together end portions of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers in such a manner that a plurality of optical fiber sets, each comprising three optical fibers one from the plurality of first optical fibers, one from the plurality of second optical fibers, and one from the plurality of third optical fibers, are stacked in layers,wherein the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers emit laser lights from exit end faces thereof so that the laser lights from different ones of the plurality of optical fiber sets are focused at different depth positions, anda GI fiber whose length is different for each of the optical fiber sets is fused to the end portion of each of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers.
2 Assignments
0 Petitions
Accused Products
Abstract
Provided is a light source device having optical fiber arrays arranged so that different sets of RGB laser lights are focused at different depth positions, while enhancing the efficiency of light utilization. The light source device includes a plurality of optical devices each of which generate red, green, or blue laser light, a plurality of first, second, and third optical fibers through each of which the red, green, or blue laser light from a corresponding one of the plurality of optical devices is guided, and a fiber bundle combiner which forms a fiber bundle by fixedly holding together end portions of the plurality of first, second, and third optical fibers in such a manner that a plurality of optical fiber sets, each comprising three optical fibers one from the first optical fibers, one from the second optical fibers, and one from the third optical fibers, are stacked in layers.
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Citations
8 Claims
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1. A light source device comprising:
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a plurality of first optical devices which generate red laser light; a plurality of first optical fibers through each of which the red laser light from a corresponding one of the plurality of first optical devices is guided; a plurality of second optical devices which generate green laser light; a plurality of second optical fibers through each of which the green laser light from a corresponding one of the plurality of second optical devices is guided; a plurality of third optical devices which generate blue laser light; a plurality of third optical fibers through each of which the blue laser light from a corresponding one of the plurality of third optical devices is guided; and a fiber bundle combiner which forms a fiber bundle by fixedly holding together end portions of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers in such a manner that a plurality of optical fiber sets, each comprising three optical fibers one from the plurality of first optical fibers, one from the plurality of second optical fibers, and one from the plurality of third optical fibers, are stacked in layers, wherein the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers emit laser lights from exit end faces thereof so that the laser lights from different ones of the plurality of optical fiber sets are focused at different depth positions, and a GI fiber whose length is different for each of the optical fiber sets is fused to the end portion of each of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers. - View Dependent Claims (5, 6, 7)
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2. (canceled)
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3. (canceled)
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4. (canceled)
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8. A projection device comprising:
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a light source unit which emits a plurality of sets of red, green, and blue laser lights; and a projecting unit which deflects and scans each of the plurality of sets of the laser lights in a two-dimensional manner and thereby projects images formed by the plurality of sets of the laser lights onto different depth positions, wherein the light source unit comprises; a plurality of first optical devices which emit red laser light; a plurality of first optical fibers through each of which the red laser light from a corresponding one of the plurality of first optical devices is guided; a plurality of second optical devices which emit green laser light; a plurality of second optical fibers through each of which the green laser light from a corresponding one of the plurality of second optical devices is guided; a plurality of third optical devices which emit blue laser light; a plurality of third optical fibers through each of which the blue laser light from a corresponding one of the plurality of third optical devices is guided; and a fiber bundle combiner which forms a fiber bundle by fixedly holding together end portions of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers in such a manner that a plurality of optical fiber sets, each comprising three optical fibers one from the plurality of first optical fibers, one from the plurality of second optical fibers, and one from the plurality of third optical fibers, are stacked in layers, wherein each of the optical fiber sets emits one of the plurality of sets of the laser lights, the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers emit laser lights from exit end faces thereof so that the laser lights from different ones of the plurality of optical fiber sets are focused at different depth positions, and a GI fiber whose length is different for each of the optical fiber sets is fused to the end portion of each of the plurality of first optical fibers, the plurality of second optical fibers, and the plurality of third optical fibers.
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Specification