Laser projection display and illumination device with MEMS scanning mirror for indoor and outdoor applications
AssigneeAdvanced NuMicro Systems, Inc.
InventorYee-Chung Fu
Life of this patent
Estimating the term…
Abstract
A projection display system includes a light source emitting a light beam, and a reflecting mirror system for scanning the light beam over an image to illuminate the image. The light source can be solid state such as a laser diode. The reflecting mirror system can be one or more MEMS scanning mirrors that rotate to raster scan the light beam over the image. The image can be an advertisement located on a wall, a screen, a sign, or a billboard. The image can also be a semi-transparent image that is projected onto a medium to produce a larger image.
Claims13
A projection illumination system, comprising:
- a solid state light source unit emitting at least one light beam;
- and
- a reflecting mirror unit for raster scanning the light beam over an image, wherein:
- the image is an existing image on a medium selected from the group consisting of a wall, a screen, a sign, and a billboard;
- and
- said raster scanning comprises moving the light beam along horizontal and vertical directions at a sufficient refresh rate that allows a human viewer to see an entire image without flicker.
A projection illumination system, comprising:
- a solid state light source unit emitting at least one light beam;
- and
- a reflecting mirror unit for raster scanning the light beam over an image, wherein:
- the image is an existing image on a semi-transparent material so the image can be viewed on both sides;
- and
- said raster scanning comprises moving the light beam along horizontal and vertical directions at a sufficient refresh rate that allows a viewer to see an entire image without flicker.
A projection illumination system, comprising:
- a solid state light source unit emitting at least one light beam;
- and
- a reflecting mirror unit for raster scanning the light beam over an image, wherein:
- the image is an existing semi-transparent image;
- and
- said raster scanning comprises moving the light beam along horizontal and vertical directions to project the image onto a medium to create a larger image at a sufficient refresh rate that allows a viewer to see an entire image without flicker.
A projection illumination system, comprising:
- a first solid state light source unit emitting at least a first light beam;
- a first reflecting mirror unit for scanning the first light beam over an image to illuminate the image;
- a second solid state light source unit emitting at least a second light beam;
- a second reflecting mirror unit for scanning the second light beam over the image to illuminate the image;
- wherein:
- the first reflecting mirror unit illuminates a first portion of the image while the second reflecting mirror unit illuminates a second portion of the image;
- the image is an existing image on a medium selected from the group consisting of a wall, a screen, a sign, and a billboard;
- and
- the first and the second light beams are raster scanned at a sufficient refresh rate that allows a viewer to see an entire image without flicker.
Dependencies are inferred from the claim text.