Reflection barrier for panoramic display
First Claim
Patent Images
1. A panoramic display system, comprising:
- a) a curved projection screen, having a center of curvature and a bottom;
b) a panoramic projector, configured to project an image onto the projection screen from a projection point located substantially above the projection screen; and
c) a substantially conically shaped barrier, having a base disposed toward the bottom of the projection screen, and an apex region disposed toward the projection point, configured to block reflections from a region of the screen to at least one other region of the screen.
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Abstract
A panoramic display system includes a curved projection screen, a panoramic projector, and a substantially conically shaped barrier. The projector is configured to project an image onto the projection screen from a projection point located substantially above the projection screen. The conical barrier has a base disposed toward the bottom of the projection screen, and an apex region disposed toward the projection point. The barrier blocks scattered light from reflecting from portions of the curved screen to other portions thereof.
47 Citations
24 Claims
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1. A panoramic display system, comprising:
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a) a curved projection screen, having a center of curvature and a bottom; b) a panoramic projector, configured to project an image onto the projection screen from a projection point located substantially above the projection screen; and c) a substantially conically shaped barrier, having a base disposed toward the bottom of the projection screen, and an apex region disposed toward the projection point, configured to block reflections from a region of the screen to at least one other region of the screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A reflection barrier for a panoramic projection system, the system including a curved projection screen, having a center of curvature and a bottom, and a panoramic projector, configured to project an image onto the projection screen from a projection point located substantially above the projection screen, the barrier comprising:
a) a substantially conically shaped barrier, having a base disposed toward the bottom of the projection screen, and an apex region disposed toward the projection point, configured to block reflections from a region of the screen to at least one other region of the screen. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A panoramic display system, comprising:
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a) a curved projection screen, having a bottom and a center of curvature; b) a projection point, located substantially above the projection screen; c) a panoramic projector, configured to project an image onto the projection screen, the projector including; i) a linear array projector configured to project a vertical line of pixels at a refresh rate; and ii) a rotating scanning mirror, disposed substantially at the projection point, configured to rotate about a vertical axis at one half the refresh rate of the linear array projector, and to reflect the vertical line of pixels onto the screen; and d) a substantially conically shaped barrier, having a base disposed toward the bottom of the projection screen, an apex region disposed toward the projection point, and a vertical axis that is substantially collinear with the center of curvature of the screen, the barrier being configured to substantially block reflections from a region of the screen to at least one other region of the screen.
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Specification