G - Physics – 03 – B
Patent
G - Physics
03
B
88/93
G03B 21/60 (2006.01) G03B 21/62 (2006.01)
Patent
CA 1270678
PHN.11.606 21.10.86 ABSTRACT: Transmission projection screen and method of manufacturing same. The invention relates to a transmission projection screen having a high light output and a satisfactory contrast, for example, for use in a projection television system, and a method of manufacturing such a screen. The projection screen comprises a transparent substrate having a front surface which is provided with parallel ribs. Light-absorbing particles 7 whose size is 20 to 75 % of the width of the grooves measured halfway between the top and bottom of the grooves, are disposed at the bottom of the grooves 4 between the ribs 2. The particles are fixed by means of an adhesive layer 6. Figure 2c.
526827
Lamberts Joseph J.m.
Schmitz Johannes H.a.
Van Der Hoorn Gustaaf H.a.
Van Der Staak Caspert G.i.
Fetherstonhaugh & Co.
Lamberts Joseph J.m.
N.v. Philips Gloeilampenfabrieken
Schmitz Johannes H.a.
Van Der Hoorn Gustaaf H.a.
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