PROJECTION APPARATUS
First Claim
1. A projection apparatus comprising:
- an optical device configured to be capable of diffusing coherent light beams;
an irradiation unit configured to irradiate coherent light beams to the optical device so that the coherent light beams scan the optical device;
a light modulator configured to generate a modulated image using coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit; and
a projection optical system configured to project a modulated image generated by the light modulator onto a scattering plane,wherein the light modulator comprises;
a plurality of micromirrors provided for each pixel, configured to switch a reflection angle of each coherent light beam from the optical device; and
a reflection angle controller configured to control a timing of switching a reflection angle of each of the plurality of micromirrors so that the timing becomes irregular for each frame period that is a time unit for generating the modulated image.
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Accused Products
Abstract
A projection apparatus has an optical device capable of diffusing coherent light beams, an irradiation unit to irradiate coherent light beams to the optical device so that the coherent light beams scan the optical device, a light modulator to generate a modulated image using coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit, and a projection optical system to project a modulated image generated by the light modulator onto a scattering plane. The light modulator has a plurality of micromirrors provided for each pixel, to switch a reflection angle of each coherent light beam from the optical device, and a reflection angle controller to control a timing of switching a reflection angle of each of the plurality of micromirrors so that the timing becomes irregular for each frame period that is a time unit for generating the modulated image.
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Citations
8 Claims
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1. A projection apparatus comprising:
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an optical device configured to be capable of diffusing coherent light beams; an irradiation unit configured to irradiate coherent light beams to the optical device so that the coherent light beams scan the optical device; a light modulator configured to generate a modulated image using coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit; and a projection optical system configured to project a modulated image generated by the light modulator onto a scattering plane, wherein the light modulator comprises; a plurality of micromirrors provided for each pixel, configured to switch a reflection angle of each coherent light beam from the optical device; and a reflection angle controller configured to control a timing of switching a reflection angle of each of the plurality of micromirrors so that the timing becomes irregular for each frame period that is a time unit for generating the modulated image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification