GB1239120A - - Google Patents
Info
- Publication number
- GB1239120A GB1239120A GB1239120DA GB1239120A GB 1239120 A GB1239120 A GB 1239120A GB 1239120D A GB1239120D A GB 1239120DA GB 1239120 A GB1239120 A GB 1239120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluorine
- bulb
- chlorine
- gas
- cclf
- 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
- H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Discharge Lamp (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
1,239,120. Halogen lamp. TOKYO SHIBAURA ELECTRIC CO. Ltd. 24 Dec., 1969 [27 Dec., 1968], No. 62921/69. Heading H1F. A halogen lamp comprises a filament and a bulb containing the filament and nitrogen and/or an inert gas and a second gas containing chlorine and fluorine. The chlorine is present in the bulb at (0À05 to 1) Î 10<SP>-6</SP> gm. atoms/c.c. whilst the fluorine is present at (0À05 to 1À5) x 10<SP>-6</SP> gm. atoms/c.c. The second gas may be dichlorodifluoromethane (CF 2 Cl 2 ), 1,2-dichloro-1,1,2,2- tetrafluoroethane (C 2 Cl 2 F 4 ), chlorodifluoromethane (CClF 2 H), trichlorofluoromethane (CFCl 3 ), chlorotrifluoromethane (CClF 3 ), 1,1,2- trichloro - 1,2,2 - trffluoromethane (C 2 Cl 3 F 3 ) or 1-chloro-1-difluoroethane (C 2 H 3 F 2 Cl). Alternatively elemental chlorine, fluorine and carbon may be introduced into the bulb and caused to react therein. The fluorine and chlorine may be introduced by using SiF 4 or SiCl 4 . If chlorodifluoromethane is used then an additional fluorine-containing gas must be used to bring the hydrogen: fluorine ratio to the desired level otherwise excessive blackening of the bulb results. The inert gas may be Ar or Kr.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43095779A JPS4826632B1 (en) | 1968-12-27 | 1968-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1239120A true GB1239120A (en) | 1971-07-14 |
Family
ID=14146950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1239120D Expired GB1239120A (en) | 1968-12-27 | 1969-12-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3619701A (en) |
| JP (1) | JPS4826632B1 (en) |
| CH (1) | CH501997A (en) |
| DE (1) | DE1965229A1 (en) |
| FR (1) | FR2027239A1 (en) |
| GB (1) | GB1239120A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2009916C2 (en) * | 1970-03-03 | 1985-05-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Halogen light bulb |
| GB1276828A (en) * | 1970-10-15 | 1972-06-07 | Thorn Electrical Ind Ltd | Manufacture of tungsten halogen lamps |
| US3707643A (en) * | 1971-06-30 | 1972-12-26 | Westinghouse Electric Corp | Halogen regenerative-cycle incandescent lamp |
| NL7207324A (en) * | 1972-05-31 | 1973-12-04 | ||
| DE2231520A1 (en) * | 1972-06-28 | 1974-01-17 | Philips Nv | METHOD FOR MANUFACTURING AN ELECTRIC LIGHT BULB WITH EXTENDED LIFE AND / OR INCREASED LIGHT YIELD |
| JPS51121779A (en) * | 1975-04-18 | 1976-10-25 | Hitachi Ltd | Method of producing gas insulation electric device |
| US4005324A (en) * | 1976-03-17 | 1977-01-25 | General Motors Corporation | Tungsten-fluorine lamp with native retained oxygen therein and method of manufacture |
| HU207906B (en) * | 1989-04-14 | 1993-06-28 | Tungsram Reszvenytarsasag | Method for making halogen- favourably fluor-filled incandescent lamp |
| EP1774569A2 (en) * | 2004-07-22 | 2007-04-18 | Philips Intellectual Property & Standards GmbH | Halogen lamp |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1925857A (en) * | 1930-01-22 | 1933-09-05 | Gen Electric | Electric incandescent lamp |
| NL262249A (en) * | 1960-03-11 | |||
| NL135014C (en) * | 1966-09-20 | |||
| NL6614205A (en) * | 1966-10-08 | 1968-04-09 | ||
| US3453476A (en) * | 1967-06-06 | 1969-07-01 | Gen Electric | Halogen regenerative cycle incandescent lamp |
-
1968
- 1968-12-27 JP JP43095779A patent/JPS4826632B1/ja active Pending
-
1969
- 1969-12-23 US US887610A patent/US3619701A/en not_active Expired - Lifetime
- 1969-12-24 GB GB1239120D patent/GB1239120A/en not_active Expired
- 1969-12-26 FR FR6945117A patent/FR2027239A1/fr not_active Withdrawn
- 1969-12-29 CH CH1933469A patent/CH501997A/en not_active IP Right Cessation
- 1969-12-29 DE DE19691965229 patent/DE1965229A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CH501997A (en) | 1971-01-15 |
| FR2027239A1 (en) | 1970-09-25 |
| US3619701A (en) | 1971-11-09 |
| DE1965229A1 (en) | 1970-08-13 |
| JPS4826632B1 (en) | 1973-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 746 | Register noted 'licences of right' (sect. 46/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |