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US 6,443,596 B1Granted
Surgical light apparatus with improved cooling
AssigneeHill-Rom Services, Inc.
InventorsJohn M. Bulko, Gerald L. Yeaney, Michael A. Taft
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AssigneeHill-Rom Services, Inc.
InventorsJohn M. Bulko, Gerald L. Yeaney, Michael A. Taft
Estimating the term…
A surgical light apparatus is disclosed having a first light source generating visible light and heat energy radiation, an enclosure surrounding the first light source and including a lens substantially transparent to visible light and a reflector for reflecting light from the first light source through the lens, and a filter apparatus coupled to the enclosure and formed at least in part from a material that is substantially transparent to at least a portion of visible light radiation and that substantially blocks transmission of heat energy radiation The filter apparatus is configured to block transmission of heat energy radiation from the first light source to the reflector and to intercept substantially all radiation from the first light source that otherwise would pass to the reflector and through the lens. The filter apparatus includes a plurality of filter elements configured to define at least one gap between two adjacent filter elements allowing air flow therethrough.
An apparatus for cooling a surgical light fixture having a first light source and an enclosure surrounding the first light source, the enclosure including a reflector and a lens transparent to visible light, the reflector configured to reflect light from the first light source towards the lens, the apparatus comprising a plurality of filter elements coupled to the enclosure between the first light source and the reflector, the plurality of filter elements being formed at least in part from material that is substantially transparent to visible light radiation and that substantially blocks transmission of heat energy radiation, and the plurality of filter elements being configured to intersect substantially all radiation from the first light source that otherwise would pass to the reflector and through the lens, the plurality of filter elements being configured to define at least one gap between two adjacent filter elements.
A surgical light apparatus having a first light source, a second light source, and an enclosure surrounding the first and second light sources and including a reflector and a lens substantially transparent to visible light, the first and second light sources generating visible light and heat energy radiation, the apparatus comprising a filter apparatus formed at least in part from a material that is substantially transparent to at least a portion of visible light radiation and that substantially blocks transmission of heat energy radiation, the filter apparatus being coupled to the enclosure and configured to Chock transmission of heat energy radiation from the first and second light sources to the reflector substantially over a 360° field of view about Longitudinal axes through the first and second light sources, the longitudinal axis through the first light source being spaced apart from and parallel to the longitudinal axis through the second light source, the filter apparatus including an inner face facing the light sources and an outer face facing away from the light sources and a first side end longitudinally spaced from a second side end, and the filter apparatus being configured to define at least one gap located between the first and second ends, the gap providing a passage allowing air flow between the inner face to the outer face.
A surgical light apparatus having a first light source and an enclosure surrounding the first light source and including a reflector and a lens substantially transparent to visible light, the first light source generating visible light and heat energy radiation, the apparatus comprising a filter apparatus formed at least in part from a material that is substantially transparent to at least a portion of visible light radiation and that substantially blocks transmission of heat energy radiation, the filter apparatus being coupled to the enclosure and configured to block transmission of heat energy radiation from the first light source to the reflector substantially over a 360° field of view about a longitudinal axis through the first light source, the filter apparatus including an inner face facing the light source and an outer face facing away from the light source, a first end longitudinally spaced from a second end, and the filter apparatus being configured to define at least one gap, the gap providing a passage allowing air flow between the inner face to the outer face;
Dependencies are inferred from the claim text.