H - Electricity
05
B
H05B 37/02 (2006.01) H05B 39/04 (2006.01)
Patent
CA 2047980
Abstract of the Disclosure Disclosed is a novel luminaire wherein a switching power supply circuitry is used to operate one or more incandes- cent lamps at a dc voltage exceeding their rating. The lumi- naire emits a flickerless light with a color temperature of about 2,900K or higher which is natural, closer to sunlight, superior in color rendering properties, gentle to the eyes, therefore very useful in illumination. The switching power supply circuitry exhibits a high power efficiency and capacity, and the output voltage is easily regulatable to a desired magnitude for lamp dimming.
Masaki Kazumi
Matsuda Osamu
Sugimori Hideo
Hayashibara Ken
Macrae & Co.
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