Lighting unit

Illumination – Light source and modifier – With ventilating – cooling or heat insulating means

Reexamination Certificate

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Details

C353S052000, C353S057000, C315S309000, C315S118000

Reexamination Certificate

active

07654696

ABSTRACT:
A lighting unit is described which has a discharge lamp (1), in particular a high pressure or high intensity discharge (HID) lamp or an ultra high performance (UHP) lamp, a lamp driver (2) and a cooling device (3). To reduce mechanical stresses caused by temperature variations in the lamp (1), one or more operating parameters of the lamp (1) are detected. In addition, a control unit is provided for controlling the lamp driver (2) and/or the cooling device (3) at least during switching on and/or off of the lighting unit in such a way that there is no excursion from a predetermined range of the at least one operating parameter. By selecting the parameter range suitably, the service life of the lamp may be extended considerably or the power of the lamp may be increased while the service life remains the same.

REFERENCES:
patent: 2177704 (1939-10-01), Francis
patent: 2196022 (1940-04-01), Moyer
patent: 3470415 (1969-09-01), Michalski
patent: 4283658 (1981-08-01), Parker
patent: 4533853 (1985-08-01), Hammond
patent: 4672271 (1987-06-01), Gear et al.
patent: 4887122 (1989-12-01), Morikawa
patent: 5583396 (1996-12-01), Hideaki et al.
patent: 5705897 (1998-01-01), Hanazaki et al.
patent: 5909085 (1999-06-01), Nelson
patent: 5962990 (1999-10-01), Kern
patent: 6016031 (2000-01-01), Lapatovich et al.
patent: 6398366 (2002-06-01), Hara et al.
patent: 6443575 (2002-09-01), Miyamoto et al.
patent: 6588907 (2003-07-01), Billington et al.
patent: 6621239 (2003-09-01), Belliveau
patent: 6635999 (2003-10-01), Belliveau
patent: 6709111 (2004-03-01), Hirao et al.
patent: 6788009 (2004-09-01), Fujii et al.
patent: 2002/0118160 (2002-08-01), Nakamura et al.
patent: 10028657 (2001-12-01), None
patent: 1 017 257 (2000-05-01), None

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