Picture display apparatus, picture display system, and screen
OwnerMasaki Otsukiinventor
Life of this patent
Estimating the term…
Abstract
A picture display apparatus includes a screen including a light guide plate which propagates a light of a specific wavelength inside and has a diffuser structure 24 for diffusing a visible light on one surface, a projection unit for projecting an image on the screen by the visible light, a photographing unit for photographing the light of a specific wavelength, and a position specification unit which, when the light of a specific wavelength propagated inside the light guide plate is reflected by an object contacting the light guide plate, specifies a position at which the object contacts the light guide plate after the photographing unit photographs the reflected light.
Claims26
A picture display apparatus, including:
- a screen including a light guide plate which propagates a light of a specific wavelength inside and has a diffuser structure for diffusing a visible light on one surface;
- a projection unit for projecting an image on the screen by the visible light;
- a photographing unit for photographing the light of a specific wavelength;
- and
- a position specification unit which, when the light of a specific wavelength propagated inside the light guide plate is reflected by an object contacting the light guide plate, specifies a position at which the object contacts the light guide plate after the photographing unit photographs the reflected light.
A picture display system, including:
- a screen having a light guide plate which propagates a light of a specific wavelength inside and includes a diffuser structure for diffusing a visible light on one surface;
- and
- a camera with a projector which has a projection unit for projecting an image on the screen by the visible light, a photographing unit for photographing the light of a specific wavelength, and a position specification unit which, when the light of a specific wavelength propagated inside the light guide plate is reflected by an object contacting the light guide plate, specifies a position at which the object contacts the light guide plate of the screen after the photographing unit photographs the reflected light.
A screen, including:
- a light guide plate which propagates a light of a specific wavelength inside;
- and
- a diffuser structure which is provided on one surface of the light guide plate and diffuses a projection light projecting an image,
- wherein when the light of a specific wavelength is reflected by an object contacting another surface of the light guide plate, the reflected light is emitted from the one surface of the light guide plate.
The screen, further comprising:
- a positioning unit for positioning a projection unit for projecting an image on the one surface of the light guide plate and a photographing unit for photographing the one surface of the light guide plate.
Dependencies are inferred from the claim text.