EP0344433A3 - High-pressure sodium discharge lamp - Google Patents

High-pressure sodium discharge lamp Download PDF

Info

Publication number
EP0344433A3
EP0344433A3 EP89106274A EP89106274A EP0344433A3 EP 0344433 A3 EP0344433 A3 EP 0344433A3 EP 89106274 A EP89106274 A EP 89106274A EP 89106274 A EP89106274 A EP 89106274A EP 0344433 A3 EP0344433 A3 EP 0344433A3
Authority
EP
European Patent Office
Prior art keywords
pressure sodium
discharge lamp
sodium discharge
sodium
discharge
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.)
Withdrawn
Application number
EP89106274A
Other languages
German (de)
French (fr)
Other versions
EP0344433A2 (en
Inventor
Axel Bund
Dieter Dr. Schmidt
Helmut Weske
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 EP0344433A2 publication Critical patent/EP0344433A2/en
Publication of EP0344433A3 publication Critical patent/EP0344433A3/en
Withdrawn legal-status Critical Current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
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp

Abstract

Als Wärmestaumittel weisen die Enden von Natriumhoch­ druckentladungsgefäßen eine potentialfreie metallische Beschichtung auf, die entweder im Vakuum aufgedampft oder als Paste aufgetragen wird. Als Metalle sind Nickel, Chrom oder Palladium geeignet. Die Dicke der Beschichtung ist größer als die Wellenlänge der vom Entladungsgefäß bei Betrieb der Lampe emittierten Strahlung und liegt im Bereich zwischen 5 µm und 100 µm. Zur Dampfdruckerhöhung und für farbverbesserte Natriumhochdruckentladungslampen. The ends of sodium are high as a heat accumulator pressure discharge vessels a potential-free metallic Coating on that either evaporated in vacuo or applied as a paste. When metals are Suitable for nickel, chrome or palladium. The thickness of the Coating is greater than the wavelength of the Discharge vessel emitted during operation of the lamp Radiation and is in the range between 5 µm and 100 µm. For increasing steam pressure and for color-improved ones High pressure sodium discharge lamps.

EP89106274A 1988-05-31 1989-04-10 High-pressure sodium discharge lamp Withdrawn EP0344433A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8807104U DE8807104U1 (en) 1988-05-31 1988-05-31
DE8807104U 1988-05-31

Publications (2)

Publication Number Publication Date
EP0344433A2 EP0344433A2 (en) 1989-12-06
EP0344433A3 true EP0344433A3 (en) 1990-03-28

Family

ID=6824574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106274A Withdrawn EP0344433A3 (en) 1988-05-31 1989-04-10 High-pressure sodium discharge lamp

Country Status (3)

Country Link
EP (1) EP0344433A3 (en)
JP (1) JPH0222560U (en)
DE (1) DE8807104U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315211A (en) * 1992-05-29 1994-05-24 Anthony's Manufacturing Company, Inc. Insulator for fluorescent lamp
EP0592040B1 (en) * 1992-10-08 1999-01-13 Koninklijke Philips Electronics N.V. High pressure discharge lamp
DE10233704A1 (en) * 2002-07-24 2004-02-12 Heraeus Noblelight Gmbh Discharge lamp e.g. for radiation device for medical or cosmetic treatment of skin, has tubular, transparent discharge vessel with opaque coating or cap on each end enclosing part of electrode protruding into vessel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974410A (en) * 1975-04-04 1976-08-10 General Electric Company Alumina ceramic lamp having enhanced heat conduction to the amalgam pool
US4001634A (en) * 1975-09-02 1977-01-04 General Electric Company Discharge lamp having thermal switch starter
FR2350691A1 (en) * 1976-05-04 1977-12-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HALOGENIDE DISCHARGE LAMP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974410A (en) * 1975-04-04 1976-08-10 General Electric Company Alumina ceramic lamp having enhanced heat conduction to the amalgam pool
US4001634A (en) * 1975-09-02 1977-01-04 General Electric Company Discharge lamp having thermal switch starter
FR2350691A1 (en) * 1976-05-04 1977-12-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HALOGENIDE DISCHARGE LAMP

Also Published As

Publication number Publication date
EP0344433A2 (en) 1989-12-06
DE8807104U1 (en) 1988-07-14
JPH0222560U (en) 1990-02-15

Similar Documents

Publication Publication Date Title
DE3323637C2 (en) Arrangement for operating an elongated electrodeless lamp
DE2843525C2 (en)
DE69016331D1 (en) Composition containing a free-flowing demineralized bone powder and its use in bone healing.
DE68912518D1 (en) Heat-resistant, wear-resistant and high-strength Al-Si alloy and its use for cylinder liners.
EP0344433A3 (en) High-pressure sodium discharge lamp
DE2546106A1 (en) Microwave food heating oven - has light radiator system with heat applied through ceramic glass and adjustable filters
DE3902144C2 (en)
EP0332081A3 (en) Oven for cooking foods with tungsten halogen lamps
PL317355A1 (en) Lacquer coating of low heat emission factor
EP0090948B1 (en) Apparatus for the treatment of dental prostheses
EP0098404B1 (en) Fastening element on mirrors for solar reflectors
Sokol Structure and corrosion of metals and alloys
EP2311069B1 (en) Quick-start for low-pressure mercury amalgam lamps
DE1956484B2 (en) Electric lamp and process for its manufacture
DE2526773B2 (en) REFLECTOR IN ANODISED ALUMINUM SHEET
DE8209544U1 (en) DEVICE FOR TREATING DENTAL MATERIALS
EP1513189A1 (en) Infrared reflector and infrared radiator comprising such reflector
DE10150755C1 (en) Lamp reflector, used in projector or other illumination equipment, consists of glass or vitreous ceramic (partly) coated on the outside with opaque layer and polymer
DE2910444C2 (en) Arrangement to improve the light output of thermal radiators
SU1305942A2 (en) A method of manufacturing filter elements
Kuznetsov Rapid Heating of Cold Deformed Sheets of the(Aluminium) Alloy D 16
SHE Cold expanding of holes improves fatigue-life of aluminium alloy components
Price Hot Isostatic Pressing--A New Heat Treatment Technology With Tremendous Potential
Yoshida et al. Present Status of Aluminum Alloys for Aircraft Structures and Their Fabricating Process
Polotskii et al. Action of Ultrasonics on Mechanical Properties and Structure of Ni-Cr and Ni-Mo Solid Solutions

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE FR GB IT

17P Request for examination filed

Effective date: 19900425

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

17Q First examination report despatched

Effective date: 19920803

18W Application withdrawn

Withdrawal date: 19920813