Projection device
First Claim
1. An image projection device, comprising a light source, director for directing light produced by the light source in a chosen direction towards a projection surface, and a digital image generator adapted to receive a digital image signal, whereby light from the source is directed by a the director, received by the image generator and modulated by the image generator to produce an image beam for projection onto the projection surface.
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Accused Products
Abstract
In a digital image projector, a deflector array, for deflecting light in a chosen direction towards the projection surface, houses a digital image generator, such as a digital micro-mirror device (DMD). While light passes through the deflector array, the image generator receives a digital image signal and modulates the light, producing the image beam. In a double-mirror array, the image generator may be located after both mirrors, or between the two mirrors. Where the image generator is a DMD, one of the mirrors is replaced by the DMD itself.
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Citations
16 Claims
- 1. An image projection device, comprising a light source, director for directing light produced by the light source in a chosen direction towards a projection surface, and a digital image generator adapted to receive a digital image signal, whereby light from the source is directed by a the director, received by the image generator and modulated by the image generator to produce an image beam for projection onto the projection surface.
- 7. An image projection device, comprising a light source and a deflector for deflecting light produced by the light source in a chosen direction towards a projection surface, the deflector comprising an image generator rotatable about the axis of incidence of light from the light source, whereby light from the light source is modulated by the image generator to produce an image beam for projection and rotatably steered by the image generator to provide movement of the image beam over the projection surface.
- 10. A beam steering image generation unit for mounting on a light source, comprising a director for directing light produced by the light source in a chosen direction towards a projection surface and rotatable about the axis of incidence of light from the light source, and a digital image generator adapted to receive a digital image signal, whereby light from the light source is modulated by the image generator to produce an image beam for projection and rotatably steered by the director to provide movement of the image beam over the projection surface.
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13. A method of image projection, comprising the steps of:
- receiving light from a light source;
directing the light in a chosen direction towards a projection surface; and
modulating the light by means of a digital image generator to produce an image beam for projection. - View Dependent Claims (14, 15)
- receiving light from a light source;
Specification