JPS5663763A - Metal vapor discharge lamp - Google Patents
Metal vapor discharge lampInfo
- Publication number
- JPS5663763A JPS5663763A JP14009179A JP14009179A JPS5663763A JP S5663763 A JPS5663763 A JP S5663763A JP 14009179 A JP14009179 A JP 14009179A JP 14009179 A JP14009179 A JP 14009179A JP S5663763 A JPS5663763 A JP S5663763A
- Authority
- JP
- Japan
- Prior art keywords
- luminous tube
- lamp
- tube
- vertical
- vapor discharge
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/34—Double-wall vessels or containers
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE:To prevent the luminescence efficiency of a metal vapor discharge lamp from lowering, by disposing a luminous tube rotatably within an outer tube in such a manner that the axis of the luminous tube may be kept always vertical even when the angle of the outer tube axis is changed. CONSTITUTION:The second supporting frame line 5b, which is secured on a luminous tube 1 by holding plates 8, is retained a rotary pin 13 on the first supporting frame line 5a that is fixed on an outer tube 11 of a metal halide lamp by a spring 7, stem lead 6b and stem 9, and a weight 14 is mounted on one of the holding plates 8 of the luminous tube so as to keep the luminous tube 1 vertical. Even when the lamp is lighted with an inclination of a certain angle theta, the luminous tube 1 therefore may rotate about the rotary pin 13 to maintain its vertical position and its luminescence efficiency is maintained at the same value as that available when the lamp per se is lighted in a vertical position without causing any temperature change at the coldest portion of the luminous tube 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14009179A JPS5663763A (en) | 1979-10-30 | 1979-10-30 | Metal vapor discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14009179A JPS5663763A (en) | 1979-10-30 | 1979-10-30 | Metal vapor discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5663763A true JPS5663763A (en) | 1981-05-30 |
Family
ID=15260737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14009179A Pending JPS5663763A (en) | 1979-10-30 | 1979-10-30 | Metal vapor discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5663763A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066736A2 (en) * | 1981-06-08 | 1982-12-15 | General Electric Company | Jacketed lamp having transverse arc tube |
-
1979
- 1979-10-30 JP JP14009179A patent/JPS5663763A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0066736A2 (en) * | 1981-06-08 | 1982-12-15 | General Electric Company | Jacketed lamp having transverse arc tube |
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