GB1222790A - Tungsten halogen lamps - Google Patents
Tungsten halogen lampsInfo
- Publication number
- GB1222790A GB1222790A GB5620669A GB5620669A GB1222790A GB 1222790 A GB1222790 A GB 1222790A GB 5620669 A GB5620669 A GB 5620669A GB 5620669 A GB5620669 A GB 5620669A GB 1222790 A GB1222790 A GB 1222790A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten halogen
- halogen lamps
- hif
- heading
- nov
- 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
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,222,790. Electric incandescent lamps. THORN LIGHTING Ltd. 17 Nov., 1969, No. 56206/69. Heading HIF. A tungsten halogen lamp comprises a tubular sealed envelope having a portion 15 of increased diameter and a planar filament 20 located within the said portion;
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5620669A GB1222790A (en) | 1969-11-17 | 1969-11-17 | Tungsten halogen lamps |
DE19707042352 DE7042352U (en) | 1969-11-17 | 1970-11-16 | TUNGSTEN HALOGEN LAMP |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5620669A GB1222790A (en) | 1969-11-17 | 1969-11-17 | Tungsten halogen lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1222790A true GB1222790A (en) | 1971-02-17 |
Family
ID=10476032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5620669A Expired GB1222790A (en) | 1969-11-17 | 1969-11-17 | Tungsten halogen lamps |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE7042352U (en) |
GB (1) | GB1222790A (en) |
-
1969
- 1969-11-17 GB GB5620669A patent/GB1222790A/en not_active Expired
-
1970
- 1970-11-16 DE DE19707042352 patent/DE7042352U/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE7042352U (en) | 1971-02-18 |
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