Operating theater lamp for producing a brightly illuminated main light field and a less brightly illuminated outer light field
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 17, 2000
Grant Date -
N/A
app pub date -
Oct 28, 1997
filing date -
Oct 29, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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