A light absorber device

F - Mech Eng,Light,Heat,Weapons – 24 – J

Patent

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Details

F24J 2/04 (2006.01)

Patent

CA 2687138

The present invention relates to a light absorbing device (1 ) which comprises an transparent outer material layer (2), a space (5) through which air is circulated and heated by light radiation passing through the outer the material layer (2), a radiation absorbing material layer (4), and an element (6) which is adapted to divide the space (5) in at least a first subspace (9), which comprises a first opening (12), and a second subspace (10), which comprises a second opening (13). The air is adapted to flow along a path having an extension from the first opening (12) to the second opening (13). The path comprises flow resistance reducing means in at least one portion (9a, b, 10a, b) of the space (5) which is adapted to reduce the flow resistance for the gaseous medium when it is guided through said portion (9a, b, 10a, b) of the space (5).

La présente invention concerne un dispositif d'absorption de lumière (1) qui comprend une couche externe de matière transparente (2), un espace (5) par lequel l'air circule et est chauffé par un rayonnement lumineux traversant la couche externe de matière (2), une couche de matière absorbant les rayonnements (4) et un élément (6) qui est conçu pour diviser l'espace (5) en au moins un premier sous-espace (9), qui se compose d'une première ouverture (12), et un second sous-espace (10), qui possède une seconde ouverture (13). L'air est conçu pour s'écouler le long d'un passage possédant une extension allant de la première ouverture (12) à la seconde (13). Le passage comprend des moyens réduisant la résistance à l'écoulement dans une partie (9a, b, 10a, b) au moins de l'espace (5) qui sont conçus pour réduire la résistance à l'écoulement du milieu gazeux lorsqu'il est dirigé dans ladite partie (9a, b, 10a, b) de l'espace (5).

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