Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate
2005-04-19
2008-09-16
Philogene, Haissa (Department: 2821)
Electric lamp and discharge devices: systems
Current and/or voltage regulation
C315S360000, C315S224000, C315SDIG002, C315SDIG002, C315S2090SC, C315S289000, C315S312000
Reexamination Certificate
active
07425802
ABSTRACT:
There is provided a high-intensity discharge lamp lighting apparatus to be loaded with a plurality of types of high-intensity discharge lamps and connected with any one of the lamps to be lighted, and the apparatus comprises a power conversion circuit for converting power supplied from a DC power source to supply the power to a high-intensity discharge lamp and a lighting control circuit for controlling the supply power of the power conversion circuit, wherein the type of the connected high-pressure discharge lamp is determined based upon a change rate of an electric characteristic of the high-intensity discharge lamp during a specific period, and the connected high-intensity discharge lamp is lighted with a desired electric characteristic selected based upon the determination result, thereby enabling discrimination of types of rated power of the plurality of types of lamps by the same detection method and the same control method irrespective of states in starting of the lamps, and by enabling the discrimination before stable lighting of the lamp, it is possible to start the discharge lamp with little stress applied to the discharge lamp.
REFERENCES:
patent: 6066921 (2000-05-01), Nakamura et al.
patent: 6914395 (2005-07-01), Yamauchi et al.
patent: 6958581 (2005-10-01), Okawa et al.
patent: 7141937 (2006-11-01), Kumagai et al.
patent: 2004/0113567 (2004-06-01), Yamauchi et al.
patent: 2006/0049777 (2006-03-01), Kumagai et al.
patent: 2007/0063659 (2007-03-01), YAamashita et al.
patent: 2003-229289 (2003-08-01), None
patent: 2003-338392 (2003-11-01), None
English Language Abstract of JP 2003-338392.
English Language Abstract of JP 2003-229289.
Komatsu Naoki
Kumagai Jun
Maehara Minoru
Nagata Satoru
Greenblum & Bernstein P.L.C.
Matsushita Electric & Works Ltd.
Philogene Haissa
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