PROJECTOR
First Claim
Patent Images
1. A projector comprising:
- an illumination system that emits an illumination light flux;
an electro-optic modulator that modulates the light from the illumination system in accordance with image information; and
a projection system that projects the light modulated by the electro-optic modulator,wherein the projection system includesa first lens group including a plurality of lenses, the lens optical axis of the plurality of lenses shifted from the central axis of an image formation area of the electro-optic modulator in a first direction,a second lens group including a plurality of lenses, the second lens group disposed on the light-exiting side of the first lens group,a curved mirror disposed on the light-exiting side of the second lens group, anda reflective light guiding system disposed along the optical path between the first lens group and the curved mirror, the reflective light guiding system reflecting the light from the first lens group in a predetermined direction containing a second direction that is opposite the first direction as a vector component and guiding the light to the curved mirror, the reflective light guiding system includes at least two reflection elements, andeach of the at least two reflection elements has a flat reflection plane.
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Accused Products
Abstract
In a projection optical system comprising: two lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having bend means for bending at least two times the light incident from an electro-optic modulator.
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Citations
13 Claims
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1. A projector comprising:
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an illumination system that emits an illumination light flux; an electro-optic modulator that modulates the light from the illumination system in accordance with image information; and a projection system that projects the light modulated by the electro-optic modulator, wherein the projection system includes a first lens group including a plurality of lenses, the lens optical axis of the plurality of lenses shifted from the central axis of an image formation area of the electro-optic modulator in a first direction, a second lens group including a plurality of lenses, the second lens group disposed on the light-exiting side of the first lens group, a curved mirror disposed on the light-exiting side of the second lens group, and a reflective light guiding system disposed along the optical path between the first lens group and the curved mirror, the reflective light guiding system reflecting the light from the first lens group in a predetermined direction containing a second direction that is opposite the first direction as a vector component and guiding the light to the curved mirror, the reflective light guiding system includes at least two reflection elements, and each of the at least two reflection elements has a flat reflection plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a projection optical system comprising:
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a plurality of lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having a plurality of plane mirrors that bends at least two times the light incident from a color combining system disposed upstream of the light path of the projection optical system. - View Dependent Claims (11, 12, 13)
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Specification