PROJECTOR, PROJECTION UNIT, AND INTERACTIVE BOARD
First Claim
1. A projector comprising:
- a main body section having a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and
a projection unit adapted to project light from the emission optical light toward an irradiated surface, the light being emitted from the display surface,the projection unit havingan image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, andan angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light.
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Accused Products
Abstract
A projector includes: a main body section including a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and a projection unit adapted to project light from the display surface toward an irradiated surface, the light being emitted from the emission optical system, wherein the projection unit includes an image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light.
16 Citations
18 Claims
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1. A projector comprising:
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a main body section having a light source, a display surface illuminated by light from the light source, and an emission optical system adapted to emit light from the display surface; and a projection unit adapted to project light from the emission optical light toward an irradiated surface, the light being emitted from the display surface, the projection unit having an image plane control optical system adapted to change the light emitted from the emission optical system to light forming an image plane of the display surface tilted with respect to the display surface, and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface and widen an angle of the light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18)
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9. A projection unit used in combination with a main body section including a light source, a display surface irradiated with light from the light source, and an emission optical system adapted to emit light from the display surface, and adapted to project the light from the emission optical system, which is emitted from the display surface, toward the irradiated surface, the projection unit comprising:
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an image plane control optical system adapted to change the light emitted from the emission optical system to light forming the image plane of the display surface tilted with respect to the display surface; and an angle-widening mirror with a concave surface having positive power and adapted to reflect light forming an image plane of the display surface tilted with respect to the display surface, and widen the angle of the light. - View Dependent Claims (10)
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Specification