Integrated front projection system with shaped imager and associated method
First Claim
1. A front image projection device, comprising:
- projection components operable to project an input image onto a projection screen to produce a screen image;
illumination components coupled to the projection components; and
image generating components operable to generate the input image, the image generating components comprising a shaped imager component physically configured to pre-distort the input image to compensate at least in part for distortion in the displayed screen image, the physical configuration being determined at least in part from a ray trace.
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Accused Products
Abstract
A front image projection device and corresponding method are disclosed that utilize a shaped imager component to pre-distort an input image and thereby compensate for the distortion expected in a screen image. The front projection device includes projection components, image generating components, and illumination components. The shaped image component may compensate at least in part for distortion introduced due to the components of the projection system. The physical configuration for the shaped imager may be determined through a modeled or actual ray trace through the projection system, and the resulting physical configuration may be a geometric shape having a curved top, a curved bottom and curved sides.
8 Citations
28 Claims
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1. A front image projection device, comprising:
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projection components operable to project an input image onto a projection screen to produce a screen image;
illumination components coupled to the projection components; and
image generating components operable to generate the input image, the image generating components comprising a shaped imager component physically configured to pre-distort the input image to compensate at least in part for distortion in the displayed screen image, the physical configuration being determined at least in part from a ray trace. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An integrated front image projection system, comprising:
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a front projection screen;
a movable arm coupled to the front projection screen, the arm having a storage position and a projection position;
a front projection head coupled to the arm distal the front projection screen;
projection components housed within the front projection head, the projection components operable to project an input image onto a projection screen thereby displaying a screen image;
illumination components coupled to the projection components; and
image generating components operable to generate the input image, the image generating components comprising a shaped imager component physically configured to pre-distort the input image to compensate at least in part for distortion in the displayed screen image, the physical configuration comprising a geometric shape having a curved top, a curved bottom and curved sides. - View Dependent Claims (12, 13, 14, 16, 17, 18, 19, 20, 21)
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15. A method for projecting a corrected screen image with a front projection device, comprising:
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providing a front projection device configured to project an input image onto a projection screen thereby displaying a screen image; and
compensating for distortion in the screen image caused by components of the front projection device at least in part by utilizing a shaped imager component physically configured to pre-distort an input image, the physical configuration comprising a geometric shape having a curved top, a curved bottom and curved sides.
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- 22. An imager for a projection system comprising a shaped imager component physically configured with a curved top, a curved bottom and curved sides to pre-distort an input image to compensate at least in part for expected distortion in a projected image.
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26. A method for determining a physical configuration for a shaped imager to provide distortion correction in a projected image, comprising:
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determining optical projection parameters for the projection system including projection angle and throw ratio;
conducting a ray trace of the projection system to determine distortion in a projected image; and
utilizing the ray trace to physically configure a shaped imager to correct at least in part for the distortion of the projected image.
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Specification