Wide angle scanner for panoramic display
First Claim
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1. A wide angle display system comprising:
- a single linear array projector, configured to project an image along an optical axis;
a curved display surface having a center of curvature;
a scanning mirror disposed along the optical axis and configured to continuously rotate about a rotational axis, wherein the rotational axis is parallel to and collinear with the center of curvature of the curved display; and
the scanning mirror comprising n scanning surfaces configured to reflect the image onto the display surface within a scan field, wherein the scan field comprises a width determined by how far the scanning mirror is allowed to rotate before the projected image from the projector encounters an edge of the scanning surface.
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Abstract
A wide angle display system includes a linear array projector, a curved display surface, and an n-sides scanning mirror. The projector is configured to project an image along an optical axis to the scanning mirror. The scanning mirror continuously rotates about a rotational axis at a speed 1/n the refresh rate, so as to reflect and scan the image onto the display surface.
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Citations
12 Claims
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1. A wide angle display system comprising:
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a single linear array projector, configured to project an image along an optical axis; a curved display surface having a center of curvature; a scanning mirror disposed along the optical axis and configured to continuously rotate about a rotational axis, wherein the rotational axis is parallel to and collinear with the center of curvature of the curved display; and the scanning mirror comprising n scanning surfaces configured to reflect the image onto the display surface within a scan field, wherein the scan field comprises a width determined by how far the scanning mirror is allowed to rotate before the projected image from the projector encounters an edge of the scanning surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for projecting a panoramic image comprising:
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continuously rotating a scanning mirror having n scanning surfaces about a rotational axis that is substantially parallel to and collinear with a center of curvature of a curved display screen; projecting an image onto the scanning surfaces of the scanning mirror using a grating light valve projector, the image comprising lines of pixels substantially parallel to the rotational axis, so as to reflect the image onto the curved display screen; and rotating the scanning mirror at a speed 1/n the refresh rate to cause the image to be scanned within a scan field on the display screen.
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Specification