Scanning beam image display

Details Scanning beam image display Scanning beam image display

H - Electricity

04

N

H04N 9/31 (2006.01) G02B 23/12 (2006.01) G02B 26/10 (2006.01) G02B 27/01 (2006.01) H01J 31/12 (2006.01) H01J 31/50 (2006.01) H04N 5/74 (2006.01)

Patent

CA 2387744

A display apparatus includes first and second IR or other light sources (80) that produce light at respective first and second non-visible wavelengths. The light is modulated according to a desired image. The modulated light (82) is then applied to a wavelength selective phosphor (96) that converts each component of the light to a respective visible wavelength. In one embodiment, the image source is a scanned light beam display (70) that scans an IR light beam onto a screen that carries the phosphor.

Ce dispositif d'affichage comprend une première et une seconde source lumineuse (80), infrarouges ou autres, lesquelles produisent de la lumière, respectivement à des longueurs d'ondes visibles et invisibles, la lumière étant modulée en fonction d'une image souhaitée. La lumière modulée (82) est ensuite appliquée à un luminophore (96) sensible aux longueurs d'ondes, lequel convertit chaque composant de la lumière en une longueur d'onde visible correspondante. Dans un mode de réalisation, la source d'images est un affichage à balayage lumineux (70), lequel balaye un faisceau lumineux infrarouge sur un écran qui supporte le luminophore.

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