Illumination device and projector
First Claim
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1. A projector comprising:
- an illumination device including;
a light source section emitting coherent light; and
a phase modulation section onto which the coherent light emitted from the light source section is incident, modulating a phase of the coherent light, forming a phase modulation pattern, varying the phase of the coherent light while generating a diffracted light in accordance with the phase modulation pattern, thereby scanning the light onto at least a part of a region of a projection surface; and
a spatial light modulation device including the projection surface and modulating the light which has been emitted from the illumination device and which is incident onto the projection surface in accordance with an image signal.
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Abstract
An illumination device includes: a light source section emitting coherent light; and a phase modulation section onto which the coherent light emitted from the light source section is incident, modulating the phase of the coherent light, forming a phase modulation pattern, varying the phase of the coherent light while generating a diffracted light in accordance with the phase modulation pattern, thereby scanning the light onto at least a part of a region of a projection surface.
10 Citations
5 Claims
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1. A projector comprising:
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an illumination device including; a light source section emitting coherent light; and a phase modulation section onto which the coherent light emitted from the light source section is incident, modulating a phase of the coherent light, forming a phase modulation pattern, varying the phase of the coherent light while generating a diffracted light in accordance with the phase modulation pattern, thereby scanning the light onto at least a part of a region of a projection surface; and a spatial light modulation device including the projection surface and modulating the light which has been emitted from the illumination device and which is incident onto the projection surface in accordance with an image signal. - View Dependent Claims (2, 3, 4, 5)
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Specification