| 摘要 |
A surgical lighthead (36, 38) includes a light source (68) having a reference point (128) defined thereon and a reflector (72) including a concave reflector surface (96) which has a central axis (100). The concave reflector surface (96) is formed to include a plurality of facets (98) configured to reflect light emanating from the light source (68). The plurality of facets (98) includes a first set (110) of facets (98) for which each associated longitudinal boundary line (112) is angulary spaced by a first angle (122) from each of the next adjacent boundary lines (112) relative to the central axis (100). In addition, the plurality of facets (98) includes a second set (116) of facets (98) for which each associated longitudinal boundary line (118) is angulary spaced by a second angle (124) from each of the next adjacent boundary lines (118) relative to the central axis (100). |
