Uniform-brightness, high-gain display structures and methods

Details Uniform-brightness, high-gain display structures and methods Uniform-brightness, high-gain display structures and methods

1994-11-18

1996-07-30

Gray, David M.

Optical: systems and elements

Projection screen

Curved

359443, G03H 114

Patent

active

055417698

ABSTRACT:
A uniform-brightness, high-gain projection screen is especially suited for reflecting radiation from a projector to a viewer who is spaced from the projector along a projection axis. The screen is formed with a plurality of reflective faces that each form at least a portion of a ring that is transverse to the projector axis, have different spacings from the projector and are axially tilted to set the projector-face angle equal to the viewer-face angle. The faces are preferably defined by a plurality of tiles that are bonded to the interior of a projection dome such as a flight simulator dome.

REFERENCES:
patent: 4732441 (1988-03-01), Cheng
patent: 5151799 (1992-09-01), Ansley

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