Lighting device and method of generating output illumination
First Claim
1. A lighting device comprisingat least one light-emitting device,at least one optical element disposed in an optical path of the light-emitting device for generating output illumination having at least one directional characteristic, anda screen-like member for changing at least one physical property of light passing therethrough and an optical device for generating an intermediate image on the screen-like member, wherein the screen-like member and the optical device are located in the optical path between the light-emitting device and the optical element, wherein the optical element is configured for projecting said image.
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Accused Products
Abstract
The invention relates to a lighting device for generating output illumination having at least one directional characteristic. The lighting device includes at least one light-emitting device and at least one optical element disposed in an optical path of the light-emitting device. The lighting device also includes a screen-like member for changing at least one physical property of light passing therethrough and an optical device for generating an intermediate image on the screen-like member. The screen-like member and the optical device are located in the optical path between the light-emitting device and the optical element projecting the intermediate image.
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Citations
13 Claims
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1. A lighting device comprising
at least one light-emitting device, at least one optical element disposed in an optical path of the light-emitting device for generating output illumination having at least one directional characteristic, and a screen-like member for changing at least one physical property of light passing therethrough and an optical device for generating an intermediate image on the screen-like member, wherein the screen-like member and the optical device are located in the optical path between the light-emitting device and the optical element, wherein the optical element is configured for projecting said image.
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12. A method of generating output illumination having a plurality of directional characteristics, using at least one light-emitting device, an optical device, a screen-like member and at least one optical element for generating output illumination having a directional characteristic, the method comprising the steps of:
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generating at least one intermediate image on the screen-like member by using light emitted by the light-emitting device and the optical device, changing at least one physical property of the light by means of said member, and projecting said image by means of the optical element, wherein the screen-like member and the optical device are located in the optical path between the light-emitting device and the optical element. - View Dependent Claims (13)
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Specification