Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2006-09-12
2006-09-12
Perkey, W. B. (Department: 2851)
Optics: image projectors
Composite projected image
Multicolor picture
C353S034000, C353S037000, C353S081000, C353S082000, C353S084000, C353S099000, C353S102000, C359S204200, C359S211200, C359S216100, C349S005000, C349S008000, C348S750000, C348S757000, C348S759000
Reexamination Certificate
active
07104652
ABSTRACT:
To provide an image display device and a projector having a brightness or an excellent utilization efficiency of the light by improving the display performance of a moving picture. A projector includes a light source for emitting illumination light, a liquid crystal light valve serving as a spatial light modulator having an image-forming area for forming image light by modulating the illumination light based on an electrical signal, a pair of fly-eye lenses and serving as an irradiation optical system for converting at least one of the shape and the size of the light beam of the illumination light emitted from the light source and for irradiating the converted illumination light on a region which is smaller than the image-forming area, a superposing lens, a rotating prism serving as an illumination-light scanning optical system for scanning the illumination light irradiated by the irradiation optical system on the image-forming area, and a projection lens as a projection device for projecting the image light modulated by the liquid crystal light valve.
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Perkey W. B.
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