GB8326980D0 - Reducing end darkening in fluorescent lamps - Google Patents
Reducing end darkening in fluorescent lampsInfo
- Publication number
- GB8326980D0 GB8326980D0 GB838326980A GB8326980A GB8326980D0 GB 8326980 D0 GB8326980 D0 GB 8326980D0 GB 838326980 A GB838326980 A GB 838326980A GB 8326980 A GB8326980 A GB 8326980A GB 8326980 D0 GB8326980 D0 GB 8326980D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluorescent lamps
- reducing end
- darkening
- end darkening
- reducing
- 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
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838326980A GB8326980D0 (en) | 1983-10-08 | 1983-10-08 | Reducing end darkening in fluorescent lamps |
GB08423967A GB2147735B (en) | 1983-10-08 | 1984-09-21 | Fluorescent lamps |
DE19848427957 DE8427957U1 (en) | 1983-10-08 | 1984-09-22 | LOW PRESSURE DISCHARGE LAMP |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838326980A GB8326980D0 (en) | 1983-10-08 | 1983-10-08 | Reducing end darkening in fluorescent lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB8326980D0 true GB8326980D0 (en) | 1983-11-09 |
Family
ID=10549899
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB838326980A Pending GB8326980D0 (en) | 1983-10-08 | 1983-10-08 | Reducing end darkening in fluorescent lamps |
GB08423967A Expired GB2147735B (en) | 1983-10-08 | 1984-09-21 | Fluorescent lamps |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08423967A Expired GB2147735B (en) | 1983-10-08 | 1984-09-21 | Fluorescent lamps |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE8427957U1 (en) |
GB (2) | GB8326980D0 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1264192C (en) * | 2001-05-08 | 2006-07-12 | 皇家菲利浦电子有限公司 | Low-pressure mercury vapor discharge lamp |
US6614146B2 (en) * | 2001-09-24 | 2003-09-02 | Osram Sylvania Inc. | Electrode shield for fluorescent lamp having a pair of spaced apart shield plates |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL59720C (en) * | 1942-06-16 | |||
GB692693A (en) * | 1948-01-02 | 1953-06-10 | Philips Nv | Improvements in or relating to vapour discharge lamps |
US3121184A (en) * | 1960-12-30 | 1964-02-11 | Gen Electric | Discharge lamp with cathode shields |
US3525009A (en) * | 1968-02-05 | 1970-08-18 | Tokyo Shibaura Electric Co | Low pressure mercury vapour discharge lamp including an alloy type getter coating |
US4013914A (en) * | 1975-11-26 | 1977-03-22 | North American Philips Corporation | electrode protecting means for electric discharge lamps |
GB1589473A (en) * | 1977-07-11 | 1981-05-13 | Thorn Emi Ltd | Fluorescent lamps |
-
1983
- 1983-10-08 GB GB838326980A patent/GB8326980D0/en active Pending
-
1984
- 1984-09-21 GB GB08423967A patent/GB2147735B/en not_active Expired
- 1984-09-22 DE DE19848427957 patent/DE8427957U1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2147735B (en) | 1987-02-04 |
GB8423967D0 (en) | 1984-10-31 |
GB2147735A (en) | 1985-05-15 |
DE8427957U1 (en) | 1985-01-03 |
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