JPS5478877A - Incandescent lamp - Google Patents

Incandescent lamp

Info

Publication number
JPS5478877A
JPS5478877A JP14572977A JP14572977A JPS5478877A JP S5478877 A JPS5478877 A JP S5478877A JP 14572977 A JP14572977 A JP 14572977A JP 14572977 A JP14572977 A JP 14572977A JP S5478877 A JPS5478877 A JP S5478877A
Authority
JP
Japan
Prior art keywords
bulb
filament
infrared ray
permeate
tio
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
JP14572977A
Other languages
Japanese (ja)
Inventor
Makoto Oyamada
Atsushi Saida
Yosuke Hirao
Tadatoshi Azuma
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 JP14572977A priority Critical patent/JPS5478877A/en
Publication of JPS5478877A publication Critical patent/JPS5478877A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To raise the temperature of the wall of a light permeable bulb by means of a reflecting film which can reflect infrared ray into the bulb while allow a visible light to permeate when emitted from a filament, provided on the outer surface thereof.
CONSTITUTION: Argon, chloroform (CHCl)3 and hydrogen are sealed off in a quartz bulb 1. In this bulb 1, a filament 20 having an illuminating section 2 and a non-illuminating section 3 is so supported on supporters 4 as to be placed in the center thereof. In addition, the filament 20 is connected to an external leading-in wire 7 through a molybdenum foil at a pinch seal section 5. The outer surface of the bulb 1 is coated with a reflecting film 9 which reflects infrared ray and allow a visible light such as TiO2-Ag-TiO2 to permeate. When the lamp is on, infrared ray is reflected on the film 9 and returned to the inside thereof to heat the gas therein, whereby the temperature of the bulb is raised.
COPYRIGHT: (C)1979,JPO&Japio
JP14572977A 1977-12-06 1977-12-06 Incandescent lamp Pending JPS5478877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14572977A JPS5478877A (en) 1977-12-06 1977-12-06 Incandescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14572977A JPS5478877A (en) 1977-12-06 1977-12-06 Incandescent lamp

Publications (1)

Publication Number Publication Date
JPS5478877A true JPS5478877A (en) 1979-06-23

Family

ID=15391775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14572977A Pending JPS5478877A (en) 1977-12-06 1977-12-06 Incandescent lamp

Country Status (1)

Country Link
JP (1) JPS5478877A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118259A (en) * 1980-02-22 1981-09-17 Tokyo Shibaura Electric Co Halogen bulb for copying machine
JPS6123258U (en) * 1984-07-18 1986-02-12 東芝ライテック株式会社 halogen light bulb

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073468A (en) * 1973-10-23 1975-06-17
JPS50138678A (en) * 1974-04-16 1975-11-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5073468A (en) * 1973-10-23 1975-06-17
JPS50138678A (en) * 1974-04-16 1975-11-05

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56118259A (en) * 1980-02-22 1981-09-17 Tokyo Shibaura Electric Co Halogen bulb for copying machine
JPH0217909B2 (en) * 1980-02-22 1990-04-23 Toshiba Electric Equip
JPS6123258U (en) * 1984-07-18 1986-02-12 東芝ライテック株式会社 halogen light bulb
JPH0338940Y2 (en) * 1984-07-18 1991-08-16

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