Projection type image-displaying apparatus and projection type image-displaying system
AssigneeKabushiki Kaisha Toshiba
InventorKunikatsu Shimada
Life of this patent
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Abstract
A projector apparatus (10) is used in which an optical portion (100) is offset so that an image light projected on a projection surface (20A) becomes suitable for a screen (20) provided in an inclined form, whereby an image free from any of strains can be simply projected on the screen (20) provided simply on a desk or the like. In addition, since the projection surface (20A) is constructed so as to have a screen gain, satisfactory visibility is obtained even with a projector apparatus having a smaller luminance than that of a large projector apparatus.
Claims20
A projection type image-displaying apparatus, comprising:
- a main body installed on an installation surface;
- and
- an optical portion, having an optical axis, for projecting an image light on an inclined projection surface, the optical portion being accommodated in the main body for the optical axis to be disposed relative to the installation surface by a predetermined angle determined in accordance with an inclination angle of the inclined projection surface.
A projection type image-displaying system, comprising:
- a projection type image-displaying apparatus comprising an optical portion, having an optical axis, for projecting an image light on an inclined projection surface, the optical axis being disposed so as to be parallel with a direction of a normal to the inclined projection surface;
- and
- a screen installed in a state in which the projection surface is inclined, the image light being projected on the inclined projection surface.
A projection type image-displaying system, comprising:
- an optical portion for projecting an image light, the optical portion being accommodated in a main body, and at least one of the optical portion and the main body being inclined with respect to a reference plane by a predetermined angle;
- and
- a screen for receiving the image light to produce an image thereon, the screen being inclined with respect to the reference plane by an angle determined in accordance with the predetermined angle.
Dependencies are inferred from the claim text.