EP0441387A3 - Low pressure gas discharge lamp - Google Patents

Low pressure gas discharge lamp Download PDF

Info

Publication number: EP0441387A3
Authority: EP; European Patent Office
Prior art keywords: low pressure; discharge lamp; gas discharge; pressure gas; lamp
Prior art date: 1990-02-08
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP19910101715

Other languages

English (en)

Other versions

EP0441387A2 (de

Inventor

Kuniharu Kikuchi

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Toshiba Lighting and Technology Corp

Original Assignee

Toshiba Lighting and Technology Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1990-02-08

Filing date

1991-02-07

Publication date

1992-04-15

1991-02-07 Application filed by Toshiba Lighting and Technology Corp filed Critical Toshiba Lighting and Technology Corp

1991-08-14 Publication of EP0441387A2 publication Critical patent/EP0441387A2/de

1992-04-15 Publication of EP0441387A3 publication Critical patent/EP0441387A3/en

Status Withdrawn legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H01J61/366—Seals for leading-in conductors
- H01J61/368—Pinched seals or analogous seals
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/76—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only
- H01J61/78—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a filling of permanent gas or gases only with cold cathode; with cathode heated only by discharge, e.g. high-tension lamp for advertising

EP19910101715 1990-02-08 1991-02-07 Low pressure gas discharge lamp Withdrawn EP0441387A3 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2027073A JPH03233854A (ja)	1990-02-08	1990-02-08	冷陰極けい光ランプ
JP27073/90		1990-02-08

Publications (2)

Publication Number	Publication Date
EP0441387A2 EP0441387A2 (de)	1991-08-14
EP0441387A3 true EP0441387A3 (en)	1992-04-15

Family

ID=12210897

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19910101715 Withdrawn EP0441387A3 (en)	1990-02-08	1991-02-07	Low pressure gas discharge lamp

Country Status (3)

Country	Link
EP (1)	EP0441387A3 (de)
JP (1)	JPH03233854A (de)
KR (1)	KR940006312B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6037714A (en) *	1995-09-19	2000-03-14	Philips Electronics North America Corporation	Hollow electrodes for low pressure discharge lamps, particularly narrow diameter fluorescent and neon lamps and lamps containing the same
JP2004071276A (ja) *	2002-08-05	2004-03-04	Nec Lighting Ltd	冷陰極ランプおよび冷陰極ランプを用いた電子機器
JP7611560B2 (ja) *	2020-10-06	2025-01-10	フェニックス電機株式会社	ランプの封止方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2056665A (en) *	1934-08-18	1936-10-06	Gen Electric	Vapor electric discharge device
US2153009A (en) *	1935-09-10	1939-04-04	Gen Electric	Electric discharge lamp

1990
- 1990-02-08 JP JP2027073A patent/JPH03233854A/ja active Pending
1991
- 1991-02-07 EP EP19910101715 patent/EP0441387A3/en not_active Withdrawn
- 1991-02-07 KR KR1019910002189A patent/KR940006312B1/ko not_active Expired - Fee Related

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2056665A (en) *	1934-08-18	1936-10-06	Gen Electric	Vapor electric discharge device
US2153009A (en) *	1935-09-10	1939-04-04	Gen Electric	Electric discharge lamp

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
INFORMATION DISPLAY. vol. 5, no. 11, November 1989, NEW YORK US pages 8 - 13; W. B. MERCER ET AL.: 'Fluorescent backlights for LCDs' *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 78 (E-718)(3426) 22 February 1989 & JP-A-63 259 958 ( TOSHIBA CORP ) 27 October 1988 *

Also Published As

Publication number	Publication date
KR910016044A (ko)	1991-09-30
JPH03233854A (ja)	1991-10-17
KR940006312B1 (ko)	1994-07-14
EP0441387A2 (de)	1991-08-14

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Legal Events

Date	Code	Title	Description
1991-06-28	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-08-14	17P	Request for examination filed	Effective date: 19910304
1991-08-14	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE GB
1992-02-25	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-04-15	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE GB
1994-08-10	17Q	First examination report despatched	Effective date: 19940627
1995-03-21	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1995-05-10	18D	Application deemed to be withdrawn	Effective date: 19941108