Daylight projection screen and method and apparatus for...

Details Daylight projection screen and method and apparatus for... Daylight projection screen and method and apparatus for...

G - Physics

03

B

117/100, 88/93,

G03B 21/60 (2006.01) B32B 3/24 (2006.01) B32B 3/26 (2006.01)

Patent

CA 1059352

ABSTRACT OF THE DISCLOSURE A layer of material which absorbs incident focussed laser light and undergoes a resultant heating is arranged in the focal plane of a lens matrix. Laser light is projected onto such layer through the lens matrix itself. The laser light is focussed by the lens elements of the lens matrix onto the layer effecting a highly localized heating of small well-defined portions of the layer. At those small well-defined portions, the material of the layer. as a result of the highly localized heating, removes itself to form the apertures of a lens-aperture matrix which is thereafter used in co- operation with the lens matrix as a rear projection or daylight pro- jection screen.

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