Illumination – Light source and modifier – With ventilating – cooling or heat insulating means
Reexamination Certificate
2005-08-16
2005-08-16
O'Shea, Sandra (Department: 2875)
Illumination
Light source and modifier
With ventilating, cooling or heat insulating means
C362S261000, C362S269000, C362S264000, C315S112000
Reexamination Certificate
active
06929385
ABSTRACT:
An apparatus and method for increasing operational life and performance of an arc tube or lamp. The method includes operating the arc tube and applying steps to encourage isothermal conditions around the arc tube. In one embodiment of the method, the arc tube (12) is rotated (40/41) during operation. Another embodiment includes directing air (32/34/26) onto the operating arc tube (12). An exemplary embodiment relates to a substantially high wattage HID unjacketed double ended arc lamp (12) operated in a substantially horizontal position, but the invention is not limited to the same.
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Patent Abstract of Japan re JP1225002 (2 pages.
Boyle Timothy J.
Gordin Myron K.
Alavi Ali
McKee Voorhees & Sease, P.L.C.
Musco Corporation
O'Shea Sandra
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