JPS5450165A - Low-pressure vapor discharge lamp - Google Patents
Low-pressure vapor discharge lampInfo
- Publication number
- JPS5450165A JPS5450165A JP11562377A JP11562377A JPS5450165A JP S5450165 A JPS5450165 A JP S5450165A JP 11562377 A JP11562377 A JP 11562377A JP 11562377 A JP11562377 A JP 11562377A JP S5450165 A JPS5450165 A JP S5450165A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- lamp
- glass bulb
- instance
- inner tube
- 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.)
- Granted
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE: To provide a discharge lamp, in which a blade is attached to the inner glass bulb having therein a cathode at its bottom, and anodes are disposed on both sides of said blade, whereby brightness of the lamp can be made virtually uniform over the entire surface of the same.
CONSTITUTION: Inner glass bulb 2 (for instance, 17cm long and having an inner diameter of 3cm) is disposed coaxially in outer glass bulb 1 (for instance, 20cm long and having a maximum tube diameter of 8cm), and a blade 3 (for instance, 1 cm wide and 1mm thick) of glass, substantially in the form of an inverted U-shape, is attached to the inner tube 2. Fluorescent material 4 is applied on the surfaces of the inner tube 2, outer glass bulb 1 and blade 3. Cathode filament 6 is supported by stem 5 in the inner tube 2, and rod-like anodes 7, 7' are supported by the flare portion of stem 5 such that they are located on both sides of the blade 3. Although plasma developed in the lamp when it is lighted is not uniform, discharge current is sabilized since discharge passages are fixed, and thus brightness of the lamp can be rendered unform over the entire surface of the same
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11562377A JPS5450165A (en) | 1977-09-28 | 1977-09-28 | Low-pressure vapor discharge lamp |
DE7878300262T DE2862125D1 (en) | 1977-08-10 | 1978-08-07 | Low pressure metal vapour discharge lamp |
EP78300262A EP0000842B1 (en) | 1977-08-10 | 1978-08-07 | Low pressure metal vapour discharge lamp |
EP81102980A EP0037589B1 (en) | 1977-08-10 | 1978-08-07 | Low pressure metal vapour discharge lamp |
DE8181102980T DE2862474D1 (en) | 1977-08-10 | 1978-08-07 | Low pressure metal vapour discharge lamp |
US06/158,264 US4335331A (en) | 1977-08-10 | 1980-06-10 | Low pressure metal vapor discharge lamp |
US06/383,944 US4438373A (en) | 1977-08-10 | 1982-06-01 | Low pressure metal vapor discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11562377A JPS5450165A (en) | 1977-09-28 | 1977-09-28 | Low-pressure vapor discharge lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5450165A true JPS5450165A (en) | 1979-04-19 |
JPS6112335B2 JPS6112335B2 (en) | 1986-04-08 |
Family
ID=14667227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11562377A Granted JPS5450165A (en) | 1977-08-10 | 1977-09-28 | Low-pressure vapor discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5450165A (en) |
-
1977
- 1977-09-28 JP JP11562377A patent/JPS5450165A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6112335B2 (en) | 1986-04-08 |
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