JPS553116A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS553116A
JPS553116A JP7504778A JP7504778A JPS553116A JP S553116 A JPS553116 A JP S553116A JP 7504778 A JP7504778 A JP 7504778A JP 7504778 A JP7504778 A JP 7504778A JP S553116 A JPS553116 A JP S553116A
Authority
JP
Japan
Prior art keywords
lamp
fluorescent material
approx
glass tube
inside surface
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
JP7504778A
Other languages
Japanese (ja)
Inventor
Masaki Suo
Rikio Yamamoto
Makoto Toho
Noboru Hashimoto
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 JP7504778A priority Critical patent/JPS553116A/en
Publication of JPS553116A publication Critical patent/JPS553116A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To eliminate occurence of brown black color spot at a fluoresecent lamp even after lighting for long time by satisfying special conditions of the mean grain radius of fluorescent material and coated amount thereof of the lamp coated with fluorescent material via a transparent conductive film on the inside surface of a glass tube.
CONSTITUTION: A fluorescent lamp coated with fluorescent material via a transparent conductive film (NESA film) on the inside surface of a glass tube is so provided as to satisfy x≥5, y≤2x-7, y≤0.2x+2.9 (within shaded area in a graph) where x represents the mean grain radius (μ) of the fluoresent material and y represents the coated amount (mg/cm2) per unit area. 40W rapid start type fluorescent lamp is manufactured by forming a NESA film of tin oxide of approx. 30KΩ in resistance on the inside surface of a glass tube having, for example, approx. 32mm of outer diameter and approx. 1200mm of length, coating white color fluorescent material containing 7μ of mean grain radius and filling rare gas and mercury in the lamp.
COPYRIGHT: (C)1980,JPO&Japio
JP7504778A 1978-06-20 1978-06-20 Fluorescent lamp Pending JPS553116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7504778A JPS553116A (en) 1978-06-20 1978-06-20 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7504778A JPS553116A (en) 1978-06-20 1978-06-20 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS553116A true JPS553116A (en) 1980-01-10

Family

ID=13564890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7504778A Pending JPS553116A (en) 1978-06-20 1978-06-20 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS553116A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867915A2 (en) * 1997-03-25 1998-09-30 Nec Corporation Noble gas discharge lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0867915A2 (en) * 1997-03-25 1998-09-30 Nec Corporation Noble gas discharge lamp
EP0867915A3 (en) * 1997-03-25 1999-02-03 Nec Corporation Noble gas discharge lamp

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