EP0520248A3 - Electric lamp - Google Patents

Electric lamp Download PDF

Info

Publication number
EP0520248A3
EP0520248A3 EP19920109848 EP92109848A EP0520248A3 EP 0520248 A3 EP0520248 A3 EP 0520248A3 EP 19920109848 EP19920109848 EP 19920109848 EP 92109848 A EP92109848 A EP 92109848A EP 0520248 A3 EP0520248 A3 EP 0520248A3
Authority
EP
European Patent Office
Prior art keywords
electric lamp
lamp
electric
Prior art date
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.)
Granted
Application number
EP19920109848
Other languages
German (de)
Other versions
EP0520248A2 (en
EP0520248B1 (en
Inventor
Werner Dr. Weiss
Manfred Deisenhofer
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0520248A2 publication Critical patent/EP0520248A2/en
Publication of EP0520248A3 publication Critical patent/EP0520248A3/en
Application granted granted Critical
Publication of EP0520248B1 publication Critical patent/EP0520248B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
EP92109848A 1991-06-24 1992-06-11 Electric lamp Expired - Lifetime EP0520248B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4120797 1991-06-24
DE4120797A DE4120797A1 (en) 1991-06-24 1991-06-24 ELECTRIC LAMP

Publications (3)

Publication Number Publication Date
EP0520248A2 EP0520248A2 (en) 1992-12-30
EP0520248A3 true EP0520248A3 (en) 1993-02-10
EP0520248B1 EP0520248B1 (en) 1995-03-22

Family

ID=6434613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109848A Expired - Lifetime EP0520248B1 (en) 1991-06-24 1992-06-11 Electric lamp

Country Status (5)

Country Link
US (1) US5336969A (en)
EP (1) EP0520248B1 (en)
JP (1) JPH05190142A (en)
CA (1) CA2064330A1 (en)
DE (2) DE4120797A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5552671A (en) * 1995-02-14 1996-09-03 General Electric Company UV Radiation-absorbing coatings and their use in lamps
US5614151A (en) * 1995-06-07 1997-03-25 R Squared Holding, Inc. Electrodeless sterilizer using ultraviolet and/or ozone
JP3415533B2 (en) * 2000-01-12 2003-06-09 エヌイーシーマイクロ波管株式会社 High pressure discharge lamp
JP3437149B2 (en) * 2000-06-30 2003-08-18 松下電器産業株式会社 Fluorescent lamp and fluorescent lamp device
DE10358676A1 (en) * 2003-12-12 2005-07-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Light bulb with activating effect
US20070152597A1 (en) * 2004-03-02 2007-07-05 Koninklijke Philips Electronics, N.V. Process for manufacturing a high-intensity discharge lamp
JP4897618B2 (en) * 2007-08-28 2012-03-14 ハリソン東芝ライティング株式会社 UV light source
DE102010042557A1 (en) * 2009-10-21 2011-04-28 Osram Gesellschaft mit beschränkter Haftung halogen bulb

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531677A (en) * 1966-12-14 1970-09-29 Sylvania Electric Prod Quartz glass envelope with radiation-absorbing glaze

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974052A (en) * 1960-07-11 1961-03-07 Owens Illinois Glass Co Ultraviolet light absorbing glass
US3148300A (en) * 1961-08-04 1964-09-08 Gen Electric Lamp having envelope of glass opaque to ultraviolet radiation
JPH0719567B2 (en) * 1987-02-27 1995-03-06 ウシオ電機株式会社 Quartz for arc tubes
US5214345A (en) * 1989-03-28 1993-05-25 Sumitomo Cement Company, Ltd. Ultraviolet ray-shielding agent and tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531677A (en) * 1966-12-14 1970-09-29 Sylvania Electric Prod Quartz glass envelope with radiation-absorbing glaze

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 13, Nr. 2 (E-700), 6. Januar 1989; & JP-A-63 213 253 (USHIO INC.) 06-09-1988 *

Also Published As

Publication number Publication date
JPH05190142A (en) 1993-07-30
CA2064330A1 (en) 1992-12-25
US5336969A (en) 1994-08-09
EP0520248A2 (en) 1992-12-30
DE59201710D1 (en) 1995-04-27
EP0520248B1 (en) 1995-03-22
DE4120797A1 (en) 1993-01-07

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