GB646716A - Improvements in tubular electric discharge lamps - Google Patents
Improvements in tubular electric discharge lampsInfo
- Publication number
- GB646716A GB646716A GB22086/47A GB2208647A GB646716A GB 646716 A GB646716 A GB 646716A GB 22086/47 A GB22086/47 A GB 22086/47A GB 2208647 A GB2208647 A GB 2208647A GB 646716 A GB646716 A GB 646716A
- Authority
- GB
- United Kingdom
- Prior art keywords
- translucent
- envelope
- cap
- lead
- light
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
- H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
- H01J5/62—Connection of wires protruding from the vessel to connectors carried by the separate part
Landscapes
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
646,716. Lamp-caps. SYLVANIA ELECTRIC PRODUCTS, Inc. Jan. 14, 1948, No. 22086/47. Convention date, Aug. 21, 1945. [Class 38 (i)] A tubular discharge lamp has the translucent end of its envelope through which the lead-in wires project surrounded by a translucent base from which the contact pins project, preferably the parts of the lead-in wires outside the envelope being covered with light-reflecting material. The cap of a lamp 1 having opposed translucent ends 4 comprises a translucent plastic body 2 recessed at 8 for the ends 4 and provided with lead-in wires 10 covered with light-reflecting material. The interior 9 of the cap is etched to diffuse the light; alternatively (Fig. 3, not shown), the interior is ribbed or grooved. A projection 15 on one end 4 permits the envelope to move about the axis of the cap which is provided with shoulders to limit the rotation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US611747A US2413662A (en) | 1945-08-21 | 1945-08-21 | Lamp base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB646716A true GB646716A (en) | 1950-11-29 |
Family
ID=24450265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22086/47A Expired GB646716A (en) | 1945-08-21 | 1948-01-14 | Improvements in tubular electric discharge lamps |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2413662A (en) |
| GB (1) | GB646716A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2480301A (en) * | 1946-02-01 | 1949-08-30 | Clayton M Moretz | Electric light fixture |
| DE1005187B (en) * | 1952-10-14 | 1957-03-28 | August Matthies | Luminaire with a bulb socket for tubular fluorescent lamps |
| DE1014231B (en) * | 1953-12-31 | 1957-08-22 | Aeg | Arrangement for fluorescent lamps |
| DE1027793B (en) * | 1956-06-02 | 1958-04-10 | Berliner Gluehlampen Werk Veb | Socket for fluorescent lamps |
| DE1069292B (en) * | 1956-06-28 | |||
| US3274420A (en) * | 1961-09-27 | 1966-09-20 | Tokyo Shibaura Electric Co | Annular fluorescent lamps |
| DE29600594U1 (en) * | 1996-01-15 | 1997-05-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München | Low-pressure discharge lamp with base and associated socket |
| US6960000B2 (en) * | 2003-07-03 | 2005-11-01 | Nuvolux, Inc. | Dartboard illumination method and apparatus |
-
1945
- 1945-08-21 US US611747A patent/US2413662A/en not_active Expired - Lifetime
-
1948
- 1948-01-14 GB GB22086/47A patent/GB646716A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2413662A (en) | 1946-12-31 |
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