METAL VAPOR DISCHARGE LAMP
PURPOSE:To improve the luminous flux maintenance factor and lengthen the life by adding silver to the inside of a light emission tube wherein iron, tin and halogen in addition to mercury and rare gas are sealed and specifying the sealed amount of iron, tin, silver and halogen. CONSTITUTION:Iron, tin...
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| Main Authors | , , |
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| Format | Patent |
| Language | English |
| Published |
12.03.1990
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| Subjects | |
| Online Access | Get full text |
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| Abstract | PURPOSE:To improve the luminous flux maintenance factor and lengthen the life by adding silver to the inside of a light emission tube wherein iron, tin and halogen in addition to mercury and rare gas are sealed and specifying the sealed amount of iron, tin, silver and halogen. CONSTITUTION:Iron, tin, silver and iodine as halogen in addition to a specific amount of mercury and rare gas are sealed in a light emission tube 1. And the respective amounts of these iron, tin, silver and iodine are {[Fe]+[Sn]}/[J]<0.5 assuming that each of the sealing amounts is expressed by the unit of gramme atominity and they are represented by [Fe], [Sn], [Ag], and [J], respectively; and also the sealing amounts are set such that {2[Fe]+2[Sn]+[Ag]/[J]>1 is satisfied. Thereby, it is possible to prevent over- liberation of iron and improve the luminous flux maintenance factor and lengthen the life. |
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| AbstractList | PURPOSE:To improve the luminous flux maintenance factor and lengthen the life by adding silver to the inside of a light emission tube wherein iron, tin and halogen in addition to mercury and rare gas are sealed and specifying the sealed amount of iron, tin, silver and halogen. CONSTITUTION:Iron, tin, silver and iodine as halogen in addition to a specific amount of mercury and rare gas are sealed in a light emission tube 1. And the respective amounts of these iron, tin, silver and iodine are {[Fe]+[Sn]}/[J]<0.5 assuming that each of the sealing amounts is expressed by the unit of gramme atominity and they are represented by [Fe], [Sn], [Ag], and [J], respectively; and also the sealing amounts are set such that {2[Fe]+2[Sn]+[Ag]/[J]>1 is satisfied. Thereby, it is possible to prevent over- liberation of iron and improve the luminous flux maintenance factor and lengthen the life. |
| Author | KOGYO YOICHIRO YONEZAWA AKIHIRO SASAKI HIROMOTO |
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| Notes | Application Number: JP19880223006 |
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| PublicationDate | 19900312 |
| PublicationDateYYYYMMDD | 1990-03-12 |
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| PublicationDecade | 1990 |
| PublicationYear | 1990 |
| RelatedCompanies | TOSHIBA LIGHTING & TECHNOL CORP |
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| Snippet | PURPOSE:To improve the luminous flux maintenance factor and lengthen the life by adding silver to the inside of a light emission tube wherein iron, tin and... |
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| SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY |
| Title | METAL VAPOR DISCHARGE LAMP |
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