GB2021751B - Lamp of adjustable luminous flux - Google Patents
Lamp of adjustable luminous fluxInfo
- Publication number
- GB2021751B GB2021751B GB7918028A GB7918028A GB2021751B GB 2021751 B GB2021751 B GB 2021751B GB 7918028 A GB7918028 A GB 7918028A GB 7918028 A GB7918028 A GB 7918028A GB 2021751 B GB2021751 B GB 2021751B
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- luminous flux
- adjustable luminous
- adjustable
- flux
- 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
- 230000004907 flux Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/044—Controlling the light-intensity of the source continuously
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT03449/78A IT1106658B (en) | 1978-05-24 | 1978-05-24 | ADJUSTABLE LUMINOUS FLOW LAMP |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2021751A GB2021751A (en) | 1979-12-05 |
GB2021751B true GB2021751B (en) | 1982-06-16 |
Family
ID=11107573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7918028A Expired GB2021751B (en) | 1978-05-24 | 1979-05-23 | Lamp of adjustable luminous flux |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5525991A (en) |
DE (1) | DE2920062A1 (en) |
DK (1) | DK211779A (en) |
FI (1) | FI791601A (en) |
FR (1) | FR2426860A1 (en) |
GB (1) | GB2021751B (en) |
IT (1) | IT1106658B (en) |
NL (1) | NL7904077A (en) |
NO (1) | NO791715L (en) |
SE (1) | SE7904561L (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3243709C3 (en) * | 1982-11-25 | 1994-12-15 | Delma Elektro Med App | Operating light |
USRE33504E (en) * | 1983-10-13 | 1990-12-25 | Lutron Electronics Co., Inc. | Wall box dimer switch with plural remote control switches |
US4563592A (en) * | 1983-10-13 | 1986-01-07 | Lutron Electronics Co. Inc. | Wall box dimmer switch with plural remote control switches |
GB2163613B (en) * | 1984-08-21 | 1987-11-04 | Crabtree Electrical Ind Ltd | Power control device |
JPH0310735Y2 (en) * | 1985-05-20 | 1991-03-18 | ||
DK628788A (en) * | 1987-12-12 | 1989-06-13 | Insta Elektro Gmbh & Co Kg | BRIGHTNESS ADJUSTMENT CIRCUIT |
GB8827880D0 (en) * | 1988-11-29 | 1988-12-29 | Keller R | Electrically controlled lamp adaptor |
JPH071125Y2 (en) * | 1989-05-23 | 1995-01-18 | タカラベルモント株式会社 | Dental light |
GB2236025A (en) * | 1989-09-15 | 1991-03-20 | Desmond Bryan Leon Mills | Dimmer switches |
US5248919A (en) * | 1992-03-31 | 1993-09-28 | Lutron Electronics Co., Inc. | Lighting control device |
DE9319537U1 (en) * | 1993-12-18 | 1994-09-22 | VH Lichttechnische Spezialgeräte GmbH, 67433 Neustadt | Lighting device |
US6264342B1 (en) | 1999-07-27 | 2001-07-24 | Vh Lichttechnische Spezialgerate Gmbh | Illuminating device |
GEP20074031B (en) * | 2002-02-25 | 2007-02-12 | American Sterilizer Companiy | Ergonomic controls in a surgical lighting system |
GB2391120B (en) * | 2002-05-17 | 2005-12-21 | * Traypoint Ltd | Pull-cord operated dimmer switch assemblies |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2525006B2 (en) * | 1975-06-05 | 1978-02-09 | Ausscheidung in 25 59 564 Gebruder Merten GmbH & Co KG, 5270 Gummersbach | ELECTRONIC CIRCUIT ARRANGEMENT FOR AN INSTALLATION DEVICE |
-
1978
- 1978-05-24 IT IT03449/78A patent/IT1106658B/en active
-
1979
- 1979-05-18 DE DE19792920062 patent/DE2920062A1/en not_active Withdrawn
- 1979-05-21 FI FI791601A patent/FI791601A/en not_active Application Discontinuation
- 1979-05-22 FR FR7912964A patent/FR2426860A1/en active Granted
- 1979-05-23 SE SE7904561A patent/SE7904561L/en not_active Application Discontinuation
- 1979-05-23 GB GB7918028A patent/GB2021751B/en not_active Expired
- 1979-05-23 NO NO791715A patent/NO791715L/en unknown
- 1979-05-23 DK DK211779A patent/DK211779A/en unknown
- 1979-05-23 NL NL7904077A patent/NL7904077A/en not_active Application Discontinuation
- 1979-05-24 JP JP6334979A patent/JPS5525991A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
IT1106658B (en) | 1985-11-18 |
FI791601A (en) | 1979-11-25 |
DK211779A (en) | 1979-11-25 |
JPS5525991A (en) | 1980-02-25 |
GB2021751A (en) | 1979-12-05 |
NL7904077A (en) | 1979-11-27 |
DE2920062A1 (en) | 1979-11-29 |
IT7803449A0 (en) | 1978-05-24 |
NO791715L (en) | 1979-11-27 |
FR2426860A1 (en) | 1979-12-21 |
FR2426860B1 (en) | 1985-02-22 |
SE7904561L (en) | 1979-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19960523 |