JPS54152369A - Incandescent electric bulb with infrared reflecting films - Google Patents

Incandescent electric bulb with infrared reflecting films

Info

Publication number
JPS54152369A
JPS54152369A JP6007078A JP6007078A JPS54152369A JP S54152369 A JPS54152369 A JP S54152369A JP 6007078 A JP6007078 A JP 6007078A JP 6007078 A JP6007078 A JP 6007078A JP S54152369 A JPS54152369 A JP S54152369A
Authority
JP
Japan
Prior art keywords
luminous body
longitudinal direction
infrared reflecting
tube bulb
electric bulb
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
JP6007078A
Other languages
Japanese (ja)
Inventor
Ikuo Iwai
Hisao Yoshiike
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.)
Iwasaki Denki KK
Original Assignee
Iwasaki Denki KK
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 Iwasaki Denki KK filed Critical Iwasaki Denki KK
Priority to JP6007078A priority Critical patent/JPS54152369A/en
Publication of JPS54152369A publication Critical patent/JPS54152369A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the feedback ratio of infrared rays and improve the lamp efficiency by making the sectional shape of a tube bulb circular in the direction perpendicular to the longitudinal direction of a luminous body and elliptic in the longitudinal direction.
CONSTITUTION: Almost straight luminous body 12 such as tungsten filament is contained and supported in tube bulb 11 with reflecting film on its inner surface which transmits visible rays and reflects infrared rays. The sectional shape of tube bulb 11 is a circle with luminous body 12 as its center in the direction Y-Y' perpendicular to the longitudinal direction X-X' of luminous body 12 and is an elliptic shape with both ends F and F' of the effective luminous length as its focus in the longitudinal direction X-X' of luminous body 12.
COPYRIGHT: (C)1979,JPO&Japio
JP6007078A 1978-05-22 1978-05-22 Incandescent electric bulb with infrared reflecting films Pending JPS54152369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6007078A JPS54152369A (en) 1978-05-22 1978-05-22 Incandescent electric bulb with infrared reflecting films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6007078A JPS54152369A (en) 1978-05-22 1978-05-22 Incandescent electric bulb with infrared reflecting films

Publications (1)

Publication Number Publication Date
JPS54152369A true JPS54152369A (en) 1979-11-30

Family

ID=13131446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6007078A Pending JPS54152369A (en) 1978-05-22 1978-05-22 Incandescent electric bulb with infrared reflecting films

Country Status (1)

Country Link
JP (1) JPS54152369A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176628A (en) * 1981-04-22 1982-10-30 Terasaki Denki Sangyo Kk Stationary overcurrent tripping unit for circuit breaker
JPS6074340A (en) * 1983-08-01 1985-04-26 ゼネラル・エレクトリツク・カンパニイ Incandescent lamp
JPH03283350A (en) * 1990-03-30 1991-12-13 Toshiba Lighting & Technol Corp Incandescent lamp

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146482A (en) * 1977-03-25 1978-12-20 Duro Test Corp Incandescent light source having transmission heat mirror

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146482A (en) * 1977-03-25 1978-12-20 Duro Test Corp Incandescent light source having transmission heat mirror

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176628A (en) * 1981-04-22 1982-10-30 Terasaki Denki Sangyo Kk Stationary overcurrent tripping unit for circuit breaker
JPS6074340A (en) * 1983-08-01 1985-04-26 ゼネラル・エレクトリツク・カンパニイ Incandescent lamp
JPH03283350A (en) * 1990-03-30 1991-12-13 Toshiba Lighting & Technol Corp Incandescent lamp

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