Apparatus for modifying a light beam

Details Apparatus for modifying a light beam Apparatus for modifying a light beam

F - Mech Eng,Light,Heat,Weapons

21

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F21V 11/10 (2006.01) F21S 8/00 (2006.01) F21S 10/02 (2006.01) F21V 9/10 (2006.01) G02B 5/00 (2006.01) G02B 26/00 (2006.01) G03B 9/06 (2006.01) G03B 9/22 (2006.01)

Patent

CA 2227788

Apparatus for modifying a beam of light, comprising at least one set of blades moveable across the beam, wherein each set of blades is arranged into a first subset of blades and a second subset of blades, and wherein the respective subsets of blades are axially spaced from each other. The apparatus is particularly suitable in apparatus comprising a light source and means for directing and/or focusing the light, and may be embodied (a) in a colour changer for changing the colour of light in a light beam, (b) in a diaphragm for varying the aperture, and (c) in dimmer apparatus for dimming light beam.

Appareil de modification d'un faisceau lumineux comprenant au moins un ensemble de lames pouvant se déplacer dans le faisceau. Chaque ensemble de lames se présente sous forme d'un premier sous-ensemble de lames et d'un second sous-ensemble de lames, ces sous-ensembles respectifs de lames étant espacés axialement les uns des autres. L'appareil est particulièrement adapté à un appareil comprenant une source lumineuse et un dispositif servant à diriger et/ou focaliser la lumière, et peut être enfermé (a) dans un modificateur de couleur qui modifie la couleur de la lumière d'un faisceau lumineux, (b) dans un diaphragme faisant varier l'ouverture, et (c) dans un variateur de lumière destiné à réguler le faisceau lumineux.

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