Patent ID: 6176597
Filing Date: 2001-01-23
Classification: A61B,F21V,F21W,Y10S

Abstract:
A surgical lighthead comprisinga light source having a reference point defined thereon, anda reflector including a concave reflector surface having a central axis, the concave reflector surface being formed to include a plurality of facets configured to reflect light emanating from the light source, each facet extending between an associated pair of longitudinal boundary lines and an associated pair of latitudinal boundary lines, the latitudinal boundary lines defining a first plurality of planes, the central axis being perpendicular to each of the first plurality of planes, the longitudinal boundary lines defining a second plurality of planes, the central axis lying on each of the second plurality of planes, the plurality of facets including a first set of facets for which each associated longitudinal boundary line is angularly spaced by a first angle from each of the next adjacent longitudinal boundary lines relative to the central axis, the first set of facets defining at least two annular courses of facets, and the plurality of facets including a second set of facets for which each associated longitudinal boundary line is angularly spaced by a second angle from each of the next adjacent longitudinal boundary lines relative to the central axis.