Illuminating device for large screen

Details Illuminating device for large screen Illuminating device for large screen

G - Physics

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G09G 3/00 (2006.01) G02F 1/1335 (2006.01) G09F 9/30 (2006.01) G09F 9/35 (2006.01) G09G 3/06 (2006.01)

Patent

CA 1173180

ABSTRACT OF THE DISCLOSURE Illuminating device for a large screen making it possible to uniformly illuminate said screen by means of a light arriving at a low angle of incidence .THETA., wherein it comprises n.p light sources and n.p optical focusing elements in matrix form wherein the matrix is formed of n lines and p columns and n.p is the product of n times p; as well as means for ensuring that the light beams from each source do not encounter the optical elements associated with the other sources.

365464

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