JPS56138855A - High pressure discharge lamp - Google Patents
High pressure discharge lampInfo
- Publication number
- JPS56138855A JPS56138855A JP4154780A JP4154780A JPS56138855A JP S56138855 A JPS56138855 A JP S56138855A JP 4154780 A JP4154780 A JP 4154780A JP 4154780 A JP4154780 A JP 4154780A JP S56138855 A JPS56138855 A JP S56138855A
- Authority
- JP
- Japan
- Prior art keywords
- projection
- bulb
- phosphor
- phosphor material
- optical transmission
- 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
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
- H01J61/44—Devices characterised by the luminescent material
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE:To reduce the quantity of necessary phosphor material and its cost, by forming a projection which is protruding outward at the top of an outer bulb and applying the phosphor material whose optical transmission factor is 65-95% to the inner surface of this projection. CONSTITUTION:A bulb 1 has a metal cap 3 at its neck 2 and a projection 4 which is protruding outward at the top. A phosphor coating 6 is applied to the spindle- shaped section of the bulb 1. In this case, the phosphor coating 6 of the spindle- shaped section of the bulb is formed so as to have its optical transmission factor of about 60% and the phosphor coating 7 of the projection 4 permits its optical transmission factor to be restricted within the ranges of 65-95%. This restriction can reduce the quantity of the necessary phosphor material and improve the color of the lamp more than the lamp to which no phosphor material is applied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4154780A JPS56138855A (en) | 1980-03-31 | 1980-03-31 | High pressure discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4154780A JPS56138855A (en) | 1980-03-31 | 1980-03-31 | High pressure discharge lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56138855A true JPS56138855A (en) | 1981-10-29 |
Family
ID=12611443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4154780A Pending JPS56138855A (en) | 1980-03-31 | 1980-03-31 | High pressure discharge lamp |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56138855A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002352769A (en) * | 2001-05-23 | 2002-12-06 | Toshiba Lighting & Technology Corp | High-pressure discharge lamp and lighting device |
US9209437B2 (en) | 2008-07-03 | 2015-12-08 | Samsung Sdi Co., Ltd. | Secondary battery having electrolyte injection hole and method of fabricating the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833940A (en) * | 1971-08-31 | 1973-05-15 |
-
1980
- 1980-03-31 JP JP4154780A patent/JPS56138855A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833940A (en) * | 1971-08-31 | 1973-05-15 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002352769A (en) * | 2001-05-23 | 2002-12-06 | Toshiba Lighting & Technology Corp | High-pressure discharge lamp and lighting device |
US9209437B2 (en) | 2008-07-03 | 2015-12-08 | Samsung Sdi Co., Ltd. | Secondary battery having electrolyte injection hole and method of fabricating the same |
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