JPS5242676A - Discharge lamp of metal vapor - Google Patents

Discharge lamp of metal vapor

Info

Publication number
JPS5242676A
JPS5242676A JP11764475A JP11764475A JPS5242676A JP S5242676 A JPS5242676 A JP S5242676A JP 11764475 A JP11764475 A JP 11764475A JP 11764475 A JP11764475 A JP 11764475A JP S5242676 A JPS5242676 A JP S5242676A
Authority
JP
Japan
Prior art keywords
discharge lamp
metal vapor
boron
simple substance
atom per
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.)
Pending
Application number
JP11764475A
Other languages
Japanese (ja)
Inventor
Tadatoshi Azuma
Toshihiko Ishigami
Kazunori Yoshimoto
Mitsuharu Hagiwara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11764475A priority Critical patent/JPS5242676A/en
Priority to US05/629,216 priority patent/US4024425A/en
Priority to AU86382/75A priority patent/AU498993B2/en
Priority to CA239,507A priority patent/CA1037098A/en
Priority to GB46509/75A priority patent/GB1527899A/en
Priority to DE2550661A priority patent/DE2550661C3/en
Publication of JPS5242676A publication Critical patent/JPS5242676A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE: To provide a metal vapor discharge lamp, in which the quantity of boron in the form of simple substance or compound to be filled thereinto is more than 0.01 μg atom per 1 ml and the quantity of boron in the form of simple substance or halogen compound is less than 0.43 μg atom per 1 ml, so as to prevent the electrodes from corroding.
COPYRIGHT: (C)1977,JPO&Japio
JP11764475A 1974-11-11 1975-10-01 Discharge lamp of metal vapor Pending JPS5242676A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP11764475A JPS5242676A (en) 1975-10-01 1975-10-01 Discharge lamp of metal vapor
US05/629,216 US4024425A (en) 1974-11-11 1975-11-06 Metal halide lamps
AU86382/75A AU498993B2 (en) 1974-11-11 1975-11-07 Metal halide lamp
CA239,507A CA1037098A (en) 1974-11-11 1975-11-10 Metal halide lamps containing boron
GB46509/75A GB1527899A (en) 1974-11-11 1975-11-11 Metal halide lamps
DE2550661A DE2550661C3 (en) 1974-11-11 1975-11-11 Mercury vapor high pressure lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11764475A JPS5242676A (en) 1975-10-01 1975-10-01 Discharge lamp of metal vapor

Publications (1)

Publication Number Publication Date
JPS5242676A true JPS5242676A (en) 1977-04-02

Family

ID=14716780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11764475A Pending JPS5242676A (en) 1974-11-11 1975-10-01 Discharge lamp of metal vapor

Country Status (1)

Country Link
JP (1) JPS5242676A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442184A (en) * 1977-09-10 1979-04-03 Nippon Telegr & Teleph Corp <Ntt> Elastic surface wave spectrum analyzing circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442184A (en) * 1977-09-10 1979-04-03 Nippon Telegr & Teleph Corp <Ntt> Elastic surface wave spectrum analyzing circuit

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