NL7604723A - High pressure sodium vapour discharge - has filling of sodium and mercury so rated that they evaporate completely in operation - Google Patents

High pressure sodium vapour discharge - has filling of sodium and mercury so rated that they evaporate completely in operation

Info

Publication number
NL7604723A
NL7604723A NL7604723A NL7604723A NL7604723A NL 7604723 A NL7604723 A NL 7604723A NL 7604723 A NL7604723 A NL 7604723A NL 7604723 A NL7604723 A NL 7604723A NL 7604723 A NL7604723 A NL 7604723A
Authority
NL
Netherlands
Prior art keywords
sodium
mercury
high pressure
rated
filling
Prior art date
Application number
NL7604723A
Other languages
Dutch (nl)
Other versions
NL166579C (en
Original Assignee
Japan Storage Battery Co 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 Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to NL7604723A priority Critical patent/NL166579C/en
Publication of NL7604723A publication Critical patent/NL7604723A/en
Application granted granted Critical
Publication of NL166579C publication Critical patent/NL166579C/en

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
    • H01J61/12—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
    • H01J61/22—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

The high pressure sodium vapour discharge lamp has a refractory, transparent, tubular discharge tube, filled with sodium, mercury and a discharge starting gas. The sodium quantity is between 0. 007 to 0.054 mg and that of mercury 0.054 to 0.6 mg both per cn.cm of the discharge tube volume. The quantitative rating of sodium and mercury ensures complete vaporisation of both element during operation of the lamp. Preferred quantities are 0.007 to 0.018 mg for Na, and 0.1 to 0.6 for Hg. The end sections of the discharge tube (1) are typically surrounded by heat insulating sleeves (5) of refractory, insulating, sealing material. The latter is surrounded by fastening metal band (6).
NL7604723A 1976-05-04 1976-05-04 HIGH-PRESSURE DISCHARGE LAMP CONTAINING SODIUM AND MERCURY AND METHOD FOR THE MANUFACTURE THEREOF. NL166579C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7604723A NL166579C (en) 1976-05-04 1976-05-04 HIGH-PRESSURE DISCHARGE LAMP CONTAINING SODIUM AND MERCURY AND METHOD FOR THE MANUFACTURE THEREOF.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7604723A NL166579C (en) 1976-05-04 1976-05-04 HIGH-PRESSURE DISCHARGE LAMP CONTAINING SODIUM AND MERCURY AND METHOD FOR THE MANUFACTURE THEREOF.

Publications (2)

Publication Number Publication Date
NL7604723A true NL7604723A (en) 1977-11-08
NL166579C NL166579C (en) 1981-08-17

Family

ID=19826122

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7604723A NL166579C (en) 1976-05-04 1976-05-04 HIGH-PRESSURE DISCHARGE LAMP CONTAINING SODIUM AND MERCURY AND METHOD FOR THE MANUFACTURE THEREOF.

Country Status (1)

Country Link
NL (1) NL166579C (en)

Also Published As

Publication number Publication date
NL166579C (en) 1981-08-17

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Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maximum lifetime of a patent

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