| (19) |
 |
|
(11) |
EP 1 659 614 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
10.06.2009 Bulletin 2009/24 |
| (43) |
Date of publication A2: |
|
24.05.2006 Bulletin 2006/21 |
| (22) |
Date of filing: 16.08.2005 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE
SI SK TR |
|
Designated Extension States: |
|
AL BA HR MK YU |
| (30) |
Priority: |
17.08.2004 RU 2004125185
11.03.2005 US 77567
|
| (71) |
Applicant: GENERAL ELECTRIC COMPANY |
|
Schenectady, NY 12345 (US) |
|
| (72) |
Inventors: |
|
- Michael, Joseph Darryl
Schoharie,
New York 12157 (US)
- Timofeev, Nikolai Alexandrovich
St. Petersburg, 198096 (RU)
- Khodorkovshii, Mikhail Alexeevich
St. Petersburg, 195426 (RU)
|
| (74) |
Representative: Pedder, James Cuthbert et al |
|
London Patent Operation,
General Electric International, Inc.,
15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB) |
|
| |
|
| (54) |
Gas discharges having emission in the UV-A range and fluorescent lamps incorporating
same |
(57) A mercury-free EM radiation source comprises excited oxygen-, nitrogen-, or carbon-containing
radicals emitting radiation in the wavelength range from about 254 nm to about 410
nm. A light source comprises such an EM radiation source and at least a photoluminescent
material that is capable of being excited by the EM radiation emitted by the source,
and emitting EM radiation in the visible wavelength range.