Optical assembly for television front screen

Details Optical assembly for television front screen Optical assembly for television front screen

H - Electricity

04

N

H04N 5/72 (2006.01) H01J 29/89 (2006.01)

Patent

CA 2122062

ABSTRACT OF THE DISCLOSURE An optical assembly device for use in front of a television screen having a diagonal dimension of S, which optical assembly comprises four panels connected together to form a hollow body having a substantially rectangular open front side of width W and height H and a substantially rectangular open rear side of width W' and height H', the separation between the front and rear open sides being D and the inner sides of the panels being reflective. The optical assembly further comprises front and rear lenses provided extending across the open front and rear sides, respectively, of the body, the front side of the rear lens being reflective, wherein the dimensions are related according to the following formulae: 1) W = [1 + (W'/H' - .beta.)] ? W'; 2) H = [1 + (W'/H' - .beta.)] ? H'; 3) D = K ? S; where: (i) .beta. = ( Image - 1)/2; (ii) 0.1 < K < 0.2.

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