Global Patent Index - EP 0451997 A3

EP 0451997 A3 19920812 - METAL VAPOR DISCHARGE LAMP

Title (en)

METAL VAPOR DISCHARGE LAMP

Publication

EP 0451997 A3 19920812 (EN)

Application

EP 91302736 A 19910328

Priority

JP 8648790 A 19900331

Abstract (en)

[origin: EP0451997A2] A metal vapor discharge lamp including a hermetically sealed bent-shape bulb (16) made of translucent ceramic material, a pair of electrodes (20, 20) mounted in the bulb (16) through both ends of the bulb (16) end metal vapor filled in the bulb, wherein the bulb (16) has a wall load A W/cm<2> and an inner bulb diameter Di mm which satisfy the following two relations; <MATH> <MATH> <IMAGE>

IPC 1-7

H01J 61/82; H01J 61/30

IPC 8 full level

H01J 61/88 (2006.01); H01J 61/30 (2006.01); H01J 61/32 (2006.01); H01J 61/74 (2006.01); H01J 61/82 (2006.01)

CPC (source: EP)

H01J 61/30 (2013.01); H01J 61/74 (2013.01); H01J 61/825 (2013.01)

Citation (search report)

  • [XP] EP 0415398 A2 19910306 - TOSHIBA LIGHTING & TECHNOLOGY [JP]
  • [Y] PATENT ABSTRACTS OF JAPAN, vol. 7, no. 258 (E-211)[1403] 17 November 1983 & JP-A-58 145 054 (MITSUBISHI DENKI K.K.) 29 August 1983
  • [Y] PATENT ABSTRACTS OF JAPAN, vol. 7, no. 111 (E-175)[1256] 14 May 1983 & JP-A-58 032 350 (HITACHI SEISAKUSHO K.K.) 25 February 1983

Designated contracting state (EPC)

DE GB

DOCDB simple family (publication)

EP 0451997 A2 19911016; EP 0451997 A3 19920812; JP H03285254 A 19911216

DOCDB simple family (application)

EP 91302736 A 19910328; JP 8648790 A 19900331