GB1012574A - Improvements in high-pressure mercury discharge lamps - Google Patents

Improvements in high-pressure mercury discharge lamps

Info

Publication number
GB1012574A
GB1012574A GB16723/63A GB1672363A GB1012574A GB 1012574 A GB1012574 A GB 1012574A GB 16723/63 A GB16723/63 A GB 16723/63A GB 1672363 A GB1672363 A GB 1672363A GB 1012574 A GB1012574 A GB 1012574A
Authority
GB
United Kingdom
Prior art keywords
mercury
metal
envelope
discharge vessel
iodide
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.)
Expired
Application number
GB16723/63A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1012574A publication Critical patent/GB1012574A/en
Expired 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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Discharge Lamp (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

1,012,574. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 29, 1963 [May 2, 1962], No. 16723/63. Heading H1D. A high-pressure mercury discharge lamp has a filling of mercury, rare gas, and a metal iodide, in a closed discharge vessel mounted within an envelope which transmits at least 50% of the desired radiation produced by the discharge and reflects at least 50% of the infra-red radiation, the power supplied to the discharge vessel during normal operation being so high that the resonance radiation of the metal of the metal iodide is emitted. The silica discharge vessel 1 having electrodes 2 and 3 is mounted within the evacuated glass envelope 6 having an internal layer 8 of tin oxide of resistance between 10 and 100 ohms per square, and a getter 7 to maintain the vacuum. The filling may include mercury, a rare gas, and the iodide of mercury, sodium, indium, thallium, gallium, nickel, or cobalt, and excess iodine may be present. The infra-red reflective coating may not cover the whole envelope, provided it reflects at least 50% of all the infrared impinging upon the whole envelope.
GB16723/63A 1962-05-02 1963-04-29 Improvements in high-pressure mercury discharge lamps Expired GB1012574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL277952 1962-05-02

Publications (1)

Publication Number Publication Date
GB1012574A true GB1012574A (en) 1965-12-08

Family

ID=19753795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16723/63A Expired GB1012574A (en) 1962-05-02 1963-04-29 Improvements in high-pressure mercury discharge lamps

Country Status (7)

Country Link
BE (1) BE631753A (en)
CH (1) CH427080A (en)
DE (2) DE1228717B (en)
ES (1) ES287551A1 (en)
GB (1) GB1012574A (en)
NL (1) NL277952A (en)
OA (1) OA00845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632985A1 (en) * 2004-09-07 2006-03-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH high-pressure discharge lampe

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331982A (en) * 1964-10-20 1967-07-18 Sylvania Electric Prod High pressure electric discharge device having a fill including vanadium
US4109175A (en) * 1976-03-19 1978-08-22 Matsushita Electronics Corporation High pressure sodium vapor discharge lamp
DE2926938A1 (en) 1979-07-04 1981-01-22 Rau Swf Autozubehoer SWITCHING ARRANGEMENT FOR DRIVING A MOVABLE ELEMENT, ESPECIALLY FOR DRIVING DISCS OR THE LIKE. IN MOTOR VEHICLES

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE134732C (en) *
CH165991A (en) * 1931-09-19 1933-12-15 Philips Nv Electric discharge tube for emitting light rays.
BE399274A (en) * 1932-11-15
DE902528C (en) * 1935-11-19 1954-01-25 Ulrich W Doering Electric high pressure discharge tube
DE684577C (en) * 1936-10-29 1939-12-01 Patra Patent Treuhand Single-socket electric metal vapor discharge lamp with surrounding thermal protection jacket
NL53253C (en) * 1938-03-11
DE967658C (en) * 1949-09-04 1957-12-05 Heraeus Gmbh W C Vapor discharge lamp
DE948897C (en) * 1951-10-20 1956-09-06 Dr Franz Skaupy Gas discharge fluorescent lamp
GB852783A (en) * 1958-06-03 1960-11-02 Gen Electric Co Ltd Improvements in or relating to high pressure mercury vapour electric discharge lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632985A1 (en) * 2004-09-07 2006-03-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH high-pressure discharge lampe
US7705540B2 (en) 2004-09-07 2010-04-27 Osram Gesellschaft Mit Beschraenkter Haftung High-pressure discharge lamp having electrically conductive transparent coating

Also Published As

Publication number Publication date
BE631753A (en)
DE1963512U (en) 1967-07-06
CH427080A (en) 1966-12-31
ES287551A1 (en) 1963-07-16
NL277952A (en)
DE1228717B (en) 1966-11-17
OA00845A (en) 1967-11-15

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