Video projector and optical light valve therefor
AssigneeCAE Inc.
InventorsBrian Welch, Michael Miller
Life of this patent
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Abstract
A video projector apparatus including a linear array of individually addressable reflective active elements, an optical system including a light source and providing a linear light pattern focused on said linear array and from which is created an image of the linear array, an optical scanning system for receiving the image of the linear array including a scanning member that successively scans the array to provide a two-dimensional image, and a projection system receiving the two-dimensional image and including a screen upon which the two-dimensional image is displayed.
Claims18
A video electro mechanical device, comprising:
- a substrate;
- a bridge element formed on the substrate and having a structural member upon which is formed a reflective layer;
- said bridge element further comprising end walls supporting said structural member;
- and
- a pair of electrodes mounted on said substrate and said bridge element for causing deflection in said bridge element said deflection including curving of said structural member and bending of at least one of said end walls.
A video projector apparatus, comprising:
- a linear array of individually addressable reflective active elements having a variable deflection, each one of said active elements comprising a video electro mechanical device, comprising:
- a substrate;
- a bridge element formed on the substrate and having a structural member upon which is formed a reflective layer;
- said bridge element further comprising end walls supporting said structural member;
- and
- a pair of electrodes mounted on said substrate and said bridge element for causing deflection in said bridge element said deflection including curving of said structural member and bending of at least one of said end walls;
- an optical system including a light source and providing a linear light pattern focused on said linear array and from which is created an image of the linear array with pixel intensities being a function of said deflection;
- an optical scanning system for receiving the image of the linear array including a scanning member that successively scans said array to provide a two-dimensional image;
- and
- a projection system receiving said two-dimensional image and including a screen upon which the o-dimensional image is displayed.
Dependencies are inferred from the claim text.