H - Electricity – 04 – N
Patent
H - Electricity
04
N
375/49, 350/74
H04N 9/31 (2006.01) G03B 21/62 (2006.01) G09G 5/00 (2006.01) H04N 5/74 (2006.01)
Patent
CA 2000318
ABSTRACT OF THE DISCLOSURE A scanned 2- or 3-D modulated light pattern originating from a light source and represented by a matrix of pixels is projected onto a defined surface or into a defined region distant from the light source. A plurality of means for modulating light one operated between at least a first mode and a second mode. This operation is synchronised with the scanning of the matrix of pixels so that: a) respective modulating means is in the first mode when its associated plurality of pixels are being scanned; and b) a respective plurality of pixels are not being scanned when its associated modulating means is in the second mode. When a modulating means is in the first mode, it allows light to be distributed from the defined surface or the defined region. When a modulating means is in the second mode, it allows the effect produced by any light incident on the defined surface or in the defined region to be reduced.
Ridout & Maybee Llp
Shanks Ian A.
Thorn Emi Plc
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