Patent ID: 7275840
Filing Date: 2007-10-02
Classification: F21V

Abstract:
1. A luminaire comprising: an elongate reflector extending along an axis and comprising a plurality of elongate surface features extending along one another and along said axis, each with a reflecting surface, said surface feature having a curvature in cross-section; an elongate concave counter-reflector extending along said axis such that the reflecting surfaces of the surface features and a light emission window of the counter-reflector, said window being in a plane T, mutually face one another; contact means positioned between the reflector and the counter-reflector for accommodating at least one electric lamp, wherein the curvature of a surface feature n is such that during operation of the electric lamp light coming from the light emission window and incident on each respective surface feature n is reflected as a beam having a beam angle Φ wherein the light reflected as a beam at an angle Φ