Patent ID: 8366277

Claim:
A projector comprising: a projector housing comprising a light exit opening, a lamp which via a lamp base is arranged on the projector housing, and a reflector which reflects light beams emitted by the lamp toward the light exit opening, wherein the reflector and the lamp are displaceable with respect to each other, and a distribution of the exiting light is adjustable by displacing the reflector and the lamp with respect to each other, wherein the reflector is provided with facets that form a reflective surface for reflecting the light beams emitted by the lamp, the facets having a surface shaping such that the light beams generate a light field with a desired light distribution and whose light beam width is adjustable by displacing the reflector and the lamp relative to each other, wherein each facet forming the reflector has a concave shape in one spatial direction and a convex shape in another spatial direction such that the light beams reflected by the reflector in each position of the reflector with respect to the lamp exit from the projector as divergent light beams, wherein the reflector comprises multiple concentrical rings wherein at least some of said multiple concentrical rings are formed by multiple rows of facets, wherein said at least some of said multiple concentrical rings have a concave shape formed by the multiple rows of facets when viewed in cross-section along a plane along the reflector axis, wherein a height of the rings, when viewed in a direction along the reflector axis, increases in a direction toward the light exit opening, wherein a ring proximate an inner end of the reflector distant from the light exit opening has a smaller height than a ring closer to the light exit opening, and wherein a number of rows of facets per ring increases when viewed in a direction from the light exit opening toward the inner end of the reflector.