Speckle reduction method
First Claim
1. A projection apparatus comprising a light source for projecting an illumination light through an illumination optical system to a spatial light modulator (SLM) for modulating the illumination light for generating and transmitting an image projection light to an image projection surface through a projection optical system to display an image, the projection apparatus further comprising:
- an image position change unit for changing a position of the image projected on the image projection surface from the SLM;
a control unit for controlling the SLM and the imaging position change unit;
an ON/OFF control unit for receiving and applying projection image data to turn ON/OFF the image position change unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A projection apparatus includes a laser light source for projecting an illumination light to a plurality of spatial light modulators (SLMs) through an illumination optical system. The projection apparatus further comprises an image position change unit for changing a position of an image projected on a projection surface by projecting a modulation light from at least one said plurality of SLMs; and a control unit for controlling the SLMs and the image position change unit.
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Citations
26 Claims
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1. A projection apparatus comprising a light source for projecting an illumination light through an illumination optical system to a spatial light modulator (SLM) for modulating the illumination light for generating and transmitting an image projection light to an image projection surface through a projection optical system to display an image, the projection apparatus further comprising:
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an image position change unit for changing a position of the image projected on the image projection surface from the SLM; a control unit for controlling the SLM and the imaging position change unit; an ON/OFF control unit for receiving and applying projection image data to turn ON/OFF the image position change unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A projection apparatus comprising a laser light source for projecting an illumination light to a plurality of spatial light modulators (SLMs) through an illumination optical system and said projection apparatus further comprising:
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an image position change unit for changing a position of an image projected on a projection surface by projecting a modulation light from at least one said plurality of SLMs; and a control unit for controlling the SLMs and the image position change unit. - View Dependent Claims (24, 25, 26)
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Specification