Global Patent Index - EP 1016331 A1

EP 1016331 A1 2000-07-05 - IGNITOR FREE DISCHARGE TUBE LIGHTING APPARATUS

Title (en)

IGNITOR FREE DISCHARGE TUBE LIGHTING APPARATUS

Title (de)

BELEICHTUINGSGERÄT OHNE ZÜNDANORDNUNG FÜR ENTLADUNGSLAMPEN

Title (fr)

APPAREIL D'ECLAIRAGE DU TYPE TUBE A DECHARGE SANS DISPOSITIF D'ALLUMAGE

Publication

EP 1016331 A1 (EN)

Application

EP 98932680 A

Priority

  • SE 9801246 W
  • SE 9702565 A

Abstract (en)

[origin: WO9902019A1] An apparatus for providing an ignition, without the use of a conventional so called "ignitor", of a discharge lamp or a discharge tube (1) of the type which comprises two spaced contact poles (5, 6) and which, for being ignited, requires that a light arc is built up between said contact poles (5, 6), in which apparatus the discharge tube (1) is connected in series in an electric circuit comprising a choke coil (3), the discharge lamp (1) and a capacitor (9), and in which the apparatus, parallely over the contact poles (5, 6) of the discharge tube (1), has a circuit which, in series, comprises a resistance (10) and a diode (11). The resistance connected parallely over the discharge tube (1) has a very high resistance, for instance between (1) and 20 k OMEGA . The diode (11) can be of about 1 mA. A resistance (12) can be connected parallely over the capacitor (9).

IPC 1-7 (main, further and additional classification)

H05B 41/23

IPC 8 full level (invention and additional information)

H05B 41/231 (2006.01); H05B 41/232 (2006.01)

CPC (invention and additional information)

H05B 41/232 (2013.01); H05B 41/231 (2013.01)

Citation (search report)

See references of WO 9902019A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT

EPO simple patent family

WO 9902019 A1 19990114; AU 8250398 A 19990125; EP 1016331 A1 20000705; SE 9702565 D0 19970702; SE 9702565 L 19990103

INPADOC legal status


2003-07-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021231

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991231

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT