JPS54152369A - Incandescent electric bulb with infrared reflecting films - Google Patents
Incandescent electric bulb with infrared reflecting filmsInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-05-22 JP JP6007078A patent/JPS54152369A/en active Pending
Patent Citations (1)
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)
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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