Two stage optical magnification and image correction system
AssigneeInteractive Imaging Systems, Inc.
InventorsPaul Travers, Paul Churnetski, Lee Martin
Life of this patent
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Abstract
A display having a two-stage optical process is disclosed. This two-stage system enables a relatively compact and inexpensive display. A display screen projects an image that passes through a first lens or lens system. The collimated light is then diffused by one of several methods so as to increase the ultimate viewer's eyebox. The diffused image then undergoes a magnification process involving total internal reflection within a second lens. The light exiting the second lens is magnified to the level desired at a low cost and a small size.
Claims24
A two-stage display system, comprising:
- (a) a display;
- (b) a first stage aspect ratio correcting optical system, optically connected to the display;
- (c) a second stage optical system optically connected to the first system, where the second system includes a lens;
- and
- (d) the second system lens is a lens in which at least a portion of the incoming light is totally internally reflected.
A two-stage display system, comprising:
- (a) a display;
- (b) a first magnification optical system optically connected to the display to magnify the display image;
- (c) a second magnification optical system optically connected to the first magnification optical system, where the second system includes a lens having a projection screen along one wall;
- and
- in which lens at least a portion of the incoming light is totally internally reflected by the lens.
A two-stage display system, comprising:
- (a) a display;
- (b) a first magnification optical system optically connected to the display to magnify the display image;
- (c) a prism optically connected to the first optical system;
- and
- (d) a second magnification optical system optically connected to the prism, where the second system includes a lens in which at least a portion of the incoming light is totally internally reflected (TIR).
A two-stage display system, comprising:
- (a) a display;
- (b) a first magnification optical system optically connected to the display to magnify the display image;
- (c) a second magnification optical system, including a lens having a projection screen along one wall, optically connected to the first magnification optical system.
A two-stage display system, comprising:
- (a) a display;
- (b) a first magnification optical system optically connected to the display to magnify the display image;
- (c) a prism optically connected to the first optical system where one side of the prism is coated in a projection diffusing substance;
- and
- (d) a second magnification optical system optically connected to the prism, where the second system includes a lens.
A two-stage display system, comprising:
- (a) a display;
- (b) a first optical system optically connected to the display;
- (c) a second optical system, including a lens having a projection screen along one wall in which at least a portion of the incoming light is totally internally reflected by the lens, optically connected to the first optical system.
A two-stage display system, comprising:
- (a) a display;
- (b) a first optical system optically connected to the display;
- (c) a prism optically connected to the first optical systems;
- and
- (d) a second optical system including a lens, in which at least a portion of the incoming light is totally internally reflected by the lens, optically connected to the prism.
Dependencies are inferred from the claim text.