G - Physics – 03 – B
Patent
G - Physics
03
B
G03B 21/62 (2006.01) G03B 21/60 (2006.01)
Patent
CA 2447771
The invention relates to a method for producing a non-solid projection screen (3), projection volume (8), or the like, the method comprising the steps of supplying and/or forming light scattering/reflecting scattering centres (4) to a substantially laminar transfer flow (2) to be transferred by said transfer flow (2). In accordance with the invention, the scattering centres (4) are supplied and/or formed to the transfer flow (2), to the central/inner parts thereof that remain laminar, away from the direct vicinity of the interfaces between the transfer flow (2) and the area surrounding thereof, in order to keep the projection screen in shape. In accordance with the invention, as the scattering centres (4) can be used light elastically or non-elastically scattering, solid liquid or gaseous substance.
La présente invention concerne un procédé permettant la production d'un écran de projection non solide (3), d'un volume de projection (8) ou analogue, le procédé comprenant les étapes de mise à disposition et/ou de formation de centres de diffusion (4) de réflexion/diffusion de lumière destinés à un flux de transfert sensiblement laminaire (2) pour qu'ils soient transférés ledit flux de transfert (2). Selon l'invention, les centres de diffusion (4) sont mis à la disposition du flux de transfert (2) et/ou formés pour celui-ci, vers les parties centrales/internes de celui-ci qui restent laminaires, en direction opposée des voisinages directs des interfaces entre le flux de transfert (2) et la zone qui l'entoure, afin de maintenir la forme de l'écran de projection. Selon l'invention, en tant que centres de diffusion (4) peuvent être utilisées des substances solides, liquides ou gazeuses de diffusion élastique ou non élastique de lumière.
Palovuori Karri
Rakkolainen Ismo
Palovuori Karri
Rakkolainen Ismo
Sim & Mcburney
LandOfFree
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