EP0110249A3 - High pressure sodium lamp having improved coloring rendition - Google Patents

High pressure sodium lamp having improved coloring rendition Download PDF

Info

Publication number
EP0110249A3
EP0110249A3 EP83111493A EP83111493A EP0110249A3 EP 0110249 A3 EP0110249 A3 EP 0110249A3 EP 83111493 A EP83111493 A EP 83111493A EP 83111493 A EP83111493 A EP 83111493A EP 0110249 A3 EP0110249 A3 EP 0110249A3
Authority
EP
European Patent Office
Prior art keywords
rendition
high pressure
pressure sodium
sodium lamp
improved coloring
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
EP83111493A
Other versions
EP0110249A2 (en
EP0110249B1 (en
Inventor
Jack Mack Strok
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP0110249A2 publication Critical patent/EP0110249A2/en
Publication of EP0110249A3 publication Critical patent/EP0110249A3/en
Application granted granted Critical
Publication of EP0110249B1 publication Critical patent/EP0110249B1/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
    • H01J61/825—High-pressure sodium lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
EP83111493A 1982-11-26 1983-11-17 High pressure sodium lamp having improved coloring rendition Expired EP0110249B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44477882A 1982-11-26 1982-11-26
US444778 1999-11-22

Publications (3)

Publication Number Publication Date
EP0110249A2 EP0110249A2 (en) 1984-06-13
EP0110249A3 true EP0110249A3 (en) 1985-05-08
EP0110249B1 EP0110249B1 (en) 1988-10-19

Family

ID=23766320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83111493A Expired EP0110249B1 (en) 1982-11-26 1983-11-17 High pressure sodium lamp having improved coloring rendition

Country Status (4)

Country Link
EP (1) EP0110249B1 (en)
JP (1) JPS59112563A (en)
CA (1) CA1209193A (en)
DE (1) DE3378287D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8725912D0 (en) * 1987-11-05 1987-12-09 Emi Plc Thorn Discharge arc lamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071073A (en) * 1980-03-11 1981-09-16 Gen Electric Alumina ceramic

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248590A (en) * 1963-03-01 1966-04-26 Gen Electric High pressure sodium vapor lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071073A (en) * 1980-03-11 1981-09-16 Gen Electric Alumina ceramic

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEE PROCEEDINGS-A, vol. 128, no. 6, page 415; Sept. 1981, Old Woking Surrey, (GB) J.A.J.M. VAN VLIET et al.: "High-pressure sodium discharge lamps" *
JOURNAL OF THE ILLUMINATING ENGINEERING SOCIETY, vol. 11, no. 4, pages 231-240, July 1982, New York, (US) K. OTANI et al.: "A high pressure sodium lamp with improved color rendition" *

Also Published As

Publication number Publication date
EP0110249A2 (en) 1984-06-13
EP0110249B1 (en) 1988-10-19
JPS59112563A (en) 1984-06-29
CA1209193A (en) 1986-08-05
DE3378287D1 (en) 1988-11-24

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