Optical assembly for television front screen

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

Category

H - Electricity

Subcategory

04

Subsubcategory

N

IPC codes

H04N 5/72 (2006.01)

Type

Patent

Patent number

CA 2161100

Description

A television image processing device (10) for use in front of a television screen having a diagonal dimensions of S, which imaging processing device comprises four panels (12 to 15) connected together to form a hollow body (11) having a substantially rectangular open front side (16) of width W and height H and a substantially rectangular open rear side (17) of width W' and height H', the separation between the front and rear open sides (16 and 17) being D and the inner sides of the panels being reflective. The image processing device (10) further comprises a front lens (18) provided extending across the open front side (16) of the body (11), the rear side (17) of the body (11) remaining open, wherein the dimensions are related according to the following formulae: (I) W = [1 + (W'/H' -.beta.)] . W';(2) H = [1 + (W'/H' -.beta.)] . H'; (3) D = K . S; where: (i).beta. = (?5 - 1)/2; (ii) 0.1 < K < 0.2.

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