Global Patent Index - EP 1032010 A1

EP 1032010 A1 2000-08-30 - ANHYDROUS SILVER HALIDE LAMP

Title (en)

ANHYDROUS SILVER HALIDE LAMP

Title (de)

WASSERFREIE SILBERHALOGENIDLAMPE

Title (fr)

LAMPE A L'HALOGENURE D'ARGENT ANHYDRE

Publication

EP 1032010 A1 (EN)

Application

EP 99943295 A

Priority

  • JP 9904969 W
  • JP 26115598 A
  • JP 6473299 A
  • JP 21683099 A

Abstract (en)

A pair of electrodes 3 are provided in an arc tube 1. I/S is 20 (A/mm<2>) or less on a condition that an area of a cross section at a tip of the electrodes 3 is S (mm <2>) and an operating current between the electrodes 3 is I (A). According to this constitution, a long lamp life can be obtained without causing a rise in the lamp voltage and the blackening of the arc tube 1 by the evaporation of the electrodes while operation time becomes longer. <IMAGE>

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

H01J 1/20; H01J 29/04

IPC 8 full level (invention and additional information)

H01J 61/12 (2006.01); H01J 61/82 (2006.01)

CPC (invention and additional information)

H01J 61/12 (2013.01); H01J 61/827 (2013.01); H01J 61/34 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1032010 A1 20000830; EP 1032010 A4 20011128; CN 1277732 A 20001220; TW 429390 B 20010411; WO 0016360 A1 20000323

INPADOC legal status


2004-01-07 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030701

2002-03-13 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020124

2001-11-28 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20011015

2001-11-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT

2001-11-28 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 01J 61/073 A, 7H 01J 61/82 B, 7H 01J 61/12 B

2000-08-30 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000613

2000-08-30 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT