Speckle reduction method
OwnerHirotoshi Ichikawa, Takeshi Yamazaki +1inventors
InventorsHirotoshi Ichikawa, Takeshi Yamazaki, Fusao Ishii
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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.
Claims26
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.
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:
- 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.
Dependencies are inferred from the claim text.