Illumination – Light source and modifier – Including reflector
Patent
1997-10-28
2000-10-17
Tso, Laura K.
Illumination
Light source and modifier
Including reflector
362346, 362804, F21N131205
Patent
active
061320676
ABSTRACT:
The invention relates to an operating theater lamp comprising a housing having a light outlet opening at the bottom with a light source being arranged centrally in the housing and deflecting light all around it to a concave reflector, preferably a ring-like concave reflector arranged in the housing, which reflects the incident light rays to the light outlet opening and concentrates them as uniformly as possible onto a main light field arranged at a distance from the light outlet opening. The invention hereby provides that the concave reflector, and/or at least one auxiliary concave reflector arranged in its vicinity and in particular concentric to it, is or are so designed and/or arranged that a part of the light rays transmitted from the light source is reflected into an outer light field extending around the main light field and preferably adjoining the latter, in such a way that a brightly illuminated main light field and a stepped-down, less brightly illuminated outer light field is present.
REFERENCES:
patent: 1286535 (1918-12-01), Cochran
patent: 2126650 (1938-08-01), Matera
patent: 4280167 (1981-07-01), Ellett
patent: 4447865 (1984-05-01), Van Horn et al.
patent: 4517632 (1985-05-01), Roos
patent: 4617619 (1986-10-01), Gehly
patent: 4651257 (1987-03-01), Gehly
patent: 5001616 (1991-03-01), Gehly
patent: 5067064 (1991-11-01), Gehly
patent: 5178452 (1993-01-01), Scholz
patent: 5331530 (1994-07-01), Scholz
patent: 5373430 (1994-12-01), McDermott
patent: 5582478 (1996-12-01), Thomas et al.
patent: 5791768 (1998-08-01), Splane, Jr.
Gebrueder Berchtold GMB & Co.
Tso Laura K.
LandOfFree
Operating theater lamp for producing a brightly illuminated main does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Operating theater lamp for producing a brightly illuminated main, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operating theater lamp for producing a brightly illuminated main will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-461776