JPS553117A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS553117A
JPS553117A JP7504878A JP7504878A JPS553117A JP S553117 A JPS553117 A JP S553117A JP 7504878 A JP7504878 A JP 7504878A JP 7504878 A JP7504878 A JP 7504878A JP S553117 A JPS553117 A JP S553117A
Authority
JP
Japan
Prior art keywords
approx
nesa film
glass tube
nesa
fluorescent material
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
JP7504878A
Other languages
Japanese (ja)
Other versions
JPS5821381B2 (en
Inventor
Masaki Suo
Rikio Yamamoto
Makoto Toho
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.)
Panasonic Electric Works Co Ltd
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
Matsushita Electric Works 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 Matsushita Electronics Corp, Matsushita Electric Works Ltd filed Critical Matsushita Electronics Corp
Priority to JP53075048A priority Critical patent/JPS5821381B2/en
Publication of JPS553117A publication Critical patent/JPS553117A/en
Publication of JPS5821381B2 publication Critical patent/JPS5821381B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE: To prevent spot phenomenon from occurring at a fluorescent lamp without losing starting and luminous flux characteristics thereof by so providing the lamp coated with fluorescent material via a NESA film on the inside surface of a glass tube as to increase the resistance of the NESA film and the thickness of the fluorescent material along tubular axis.
CONSTITUTION: The resistance of a NESA film of and the thickness of the fluorescent material of a fluorescent lamp coated with a transparent conductive film (NESA film) on the inside surface of a glass tube are increased along the tubular axis. A solution of tin tetrachloride or the like is sprayed to form a NESA film on the inside surface of a glass tube having, for example, approx. 32mm of outer diameter and aprox. 1200mm of length as heated to approx. 560°C, and dried. This glass tube is vertically held in a manner that NESA spraying side is upside, fluorescent liquid is flown vertically from the top to coat and dry it to become approx. 0.2kΩ/cm in the vicinity of the tube end at low resistance side of the NESA film, approx. 0.5kΩ/cm at high resistance side, approx. 3mg/cm2 of coated fluorescent material amount at thinner side, and approx. 5mg/cm2 at thicker side.
COPYRIGHT: (C)1980,JPO&Japio
JP53075048A 1978-06-20 1978-06-20 fluorescent lamp Expired JPS5821381B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53075048A JPS5821381B2 (en) 1978-06-20 1978-06-20 fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53075048A JPS5821381B2 (en) 1978-06-20 1978-06-20 fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS553117A true JPS553117A (en) 1980-01-10
JPS5821381B2 JPS5821381B2 (en) 1983-04-28

Family

ID=13564920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53075048A Expired JPS5821381B2 (en) 1978-06-20 1978-06-20 fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5821381B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62259789A (en) * 1986-05-02 1987-11-12 神鋼電機株式会社 Industrial robot with extensible and rotatable arm

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249680A (en) * 1975-10-20 1977-04-20 Hitachi Ltd Discharge lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249680A (en) * 1975-10-20 1977-04-20 Hitachi Ltd Discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62259789A (en) * 1986-05-02 1987-11-12 神鋼電機株式会社 Industrial robot with extensible and rotatable arm

Also Published As

Publication number Publication date
JPS5821381B2 (en) 1983-04-28

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