Illumination – Light source and modifier – Including reflector
Patent
1991-12-17
1993-04-06
Lazarus, Ira S.
Illumination
Light source and modifier
Including reflector
362 33, 362293, 362804, F21V 1300
Patent
active
051997851
ABSTRACT:
An operating theatre lamp, for lighting a site of an operation from above, comprises at least one light source, followed by a reflector arrangement (3) which concentrates the light beams issuing from the light source on the site of the operation and by at least one infrared filter (41) which absorbs and/or reflects the predominant portion of the thermal radiation, and which preferably also filters out ultraviolet radiation components. The lamp further comprises at least one closure plate (5) which covers over the reflector arrangement (3) from below and is preferably made of a structured glass which irregularly refracts the light, the radiation of the light source (2) being in particular directed in a predetermined solid angle outwardly towards the reflector arrangement (3), the latter deflecting the light beams (20) downwardly onto the closure plate (5) and towards the site of the operation (7). A transparent foil (6a, 6b) is provided on one or on both sides of the closure plate (5) and preferably extends over the entire surface of the closure plate ( 5), and at least one foil, preferably the foil which is located above the closure plate (5), is realized as a filter which shifts the color location of the light issuing from the IR filter (41) in the direction of white light.
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Delma elektro-und medizinische Geraetebau Gesellschaft mbH
Lazarus Ira S.
Quach Y.
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