JPS647402A - Fluorescent lamp device - Google Patents

Fluorescent lamp device

Info

Publication number
JPS647402A
JPS647402A JP16300587A JP16300587A JPS647402A JP S647402 A JPS647402 A JP S647402A JP 16300587 A JP16300587 A JP 16300587A JP 16300587 A JP16300587 A JP 16300587A JP S647402 A JPS647402 A JP S647402A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
cover
lamp
member
diameter
fluorescent
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
JP16300587A
Inventor
Toshiya Tanaka
Yukio Yoshikawa
Akihiro Ueda
Mitsutoshi Kimura
Kazuhisa Ogishi
Katsuhide Misono
Tomiya Sasaki
Original Assignee
Toshiba Corp
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

Links

Abstract

PURPOSE: To prevent the thermal damage of a lighting circuit component stored in a cover by making the diameter of a member fitted to the opening section of the cover larger than the diameter of the cover. CONSTITUTION: The diameter of a member fitted to the other end opening section of a cover 1, e.g. the diameter of a member 6 supporting a fluorescent lamp 15 or a covering member 18 of the fluorescent lamp 15, is made larger than the diameter of the cover 1. The high-temperature ascending air current generated by the heat emitted from the lamp 15 or the heat emitted from the surface of the covering member 18 of the lamp 15 rises on the periphery apart from the surface of the cover 1. The heat radiation from the surface of the cover 1 is not impeded, the ratio that the ascending air current heats the cover 1 is reduced, and a lighting circuit component can thermally be protected.
JP16300587A 1987-06-30 1987-06-30 Fluorescent lamp device Pending JPS647402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16300587A JPS647402A (en) 1987-06-30 1987-06-30 Fluorescent lamp device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16300587A JPS647402A (en) 1987-06-30 1987-06-30 Fluorescent lamp device

Publications (1)

Publication Number Publication Date
JPS647402A true true JPS647402A (en) 1989-01-11

Family

ID=15765385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16300587A Pending JPS647402A (en) 1987-06-30 1987-06-30 Fluorescent lamp device

Country Status (1)

Country Link
JP (1) JPS647402A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009093926A (en) * 2007-10-09 2009-04-30 Nichia Corp Led lamp
JP2010086973A (en) * 2005-04-08 2010-04-15 Toshiba Lighting & Technology Corp Self-ballasted lamp
US9772098B2 (en) 2005-04-08 2017-09-26 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62243203A (en) * 1986-04-14 1987-10-23 Mitsubishi Electric Corp Discharge lamp apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62243203A (en) * 1986-04-14 1987-10-23 Mitsubishi Electric Corp Discharge lamp apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010086973A (en) * 2005-04-08 2010-04-15 Toshiba Lighting & Technology Corp Self-ballasted lamp
JP2010086972A (en) * 2005-04-08 2010-04-15 Toshiba Lighting & Technology Corp Self-ballasted lamp
US9772098B2 (en) 2005-04-08 2017-09-26 Toshiba Lighting & Technology Corporation Lamp having outer shell to radiate heat of light source
JP2009093926A (en) * 2007-10-09 2009-04-30 Nichia Corp Led lamp

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