FR2595897B1 - LIGHTING CONTROL SYSTEM FOR ALLOWING ADJUSTMENT OF THE AMBIENT LIGHT LEVEL AROUND VIDEO DISPLAYS, AND ATTENUATOR FOR IMPLEMENTING IT - Google Patents
LIGHTING CONTROL SYSTEM FOR ALLOWING ADJUSTMENT OF THE AMBIENT LIGHT LEVEL AROUND VIDEO DISPLAYS, AND ATTENUATOR FOR IMPLEMENTING ITInfo
- Publication number
- FR2595897B1 FR2595897B1 FR8700326A FR8700326A FR2595897B1 FR 2595897 B1 FR2595897 B1 FR 2595897B1 FR 8700326 A FR8700326 A FR 8700326A FR 8700326 A FR8700326 A FR 8700326A FR 2595897 B1 FR2595897 B1 FR 2595897B1
- Authority
- FR
- France
- Prior art keywords
- attenuator
- implementing
- control system
- ambient light
- lighting control
- 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
- 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
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
- H05B41/38—Controlling the intensity of light
- H05B41/39—Controlling the intensity of light continuously
- H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
- H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
- H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83930586A | 1986-03-13 | 1986-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2595897A1 FR2595897A1 (en) | 1987-09-18 |
FR2595897B1 true FR2595897B1 (en) | 1988-08-12 |
Family
ID=25279380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8700326A Expired FR2595897B1 (en) | 1986-03-13 | 1987-01-14 | LIGHTING CONTROL SYSTEM FOR ALLOWING ADJUSTMENT OF THE AMBIENT LIGHT LEVEL AROUND VIDEO DISPLAYS, AND ATTENUATOR FOR IMPLEMENTING IT |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS62219494A (en) |
KR (1) | KR870009610A (en) |
DE (1) | DE3708024A1 (en) |
FR (1) | FR2595897B1 (en) |
GB (1) | GB2187902A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3738563A1 (en) * | 1987-11-13 | 1989-05-24 | Frankl & Kirchner | Workplace light fixture |
US5498931A (en) * | 1990-03-10 | 1996-03-12 | Tlg Plc | Method for automatic switching and control of lighting |
GB9005454D0 (en) * | 1990-03-10 | 1990-05-09 | Emi Plc Thorn | Lamp fitting |
FR2676842B1 (en) * | 1991-05-22 | 1993-09-17 | Somfy | INSTALLATION OF AUTOMATIC CONTROL OF THE ILLUMINATION LEVEL OF A PREMISES. |
DE9319537U1 (en) * | 1993-12-18 | 1994-09-22 | VH Lichttechnische Spezialgeräte GmbH, 67433 Neustadt | Lighting device |
US5734339A (en) * | 1996-09-20 | 1998-03-31 | Ogle; Terry B. | Crosswalk warning light system |
DE29724657U1 (en) | 1997-03-04 | 2002-09-05 | TridonicAtco GmbH & Co. KG, Dornbirn | Electronic ballast |
US6264342B1 (en) | 1999-07-27 | 2001-07-24 | Vh Lichttechnische Spezialgerate Gmbh | Illuminating device |
GB0211898D0 (en) * | 2002-05-23 | 2002-07-03 | Koninkl Philips Electronics Nv | Controlling ambient light |
SE525845C2 (en) * | 2003-01-20 | 2005-05-10 | Ao Medical Products Sweden Ab | Device and method for controlling a place lighting |
DE102006043908B4 (en) * | 2006-09-19 | 2015-03-05 | Siemens Aktiengesellschaft | Device and system for constant light control |
EP2591641A2 (en) | 2010-07-06 | 2013-05-15 | Koninklijke Philips Electronics N.V. | Method and apparatus for illuminating |
KR20130059920A (en) * | 2011-11-29 | 2013-06-07 | 한국에너지기술연구원 | Dimming system, dimming method and device in the system |
DE102016218625A1 (en) | 2016-09-27 | 2017-09-07 | Siemens Schweiz Ag | Method and arrangement for brightness control, in particular constant light control |
CN107278001A (en) * | 2017-07-21 | 2017-10-20 | 中国地质大学(武汉) | A kind of intelligent interaction environment lamp control system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032851B (en) * | 1957-02-22 | 1958-06-26 | Siemens Ag | Control unit for lighting and regulating fluorescent lamps connected in parallel |
US3265932A (en) * | 1963-03-21 | 1966-08-09 | Asea Ab | Automatic control equipment for a stage lighting system |
GB1092509A (en) * | 1965-10-23 | 1967-11-29 | Gen Electric | Improvements in master-slave load control circuits |
US3515863A (en) * | 1967-10-11 | 1970-06-02 | Us Army | Dome light assembly |
US3724931A (en) * | 1971-04-28 | 1973-04-03 | H Nevyas | Lighting system control for ophthalmic examinations |
GB1440319A (en) * | 1972-12-20 | 1976-06-23 | Electronic Components Ltd | Dimmer controls for lamps |
US3868546A (en) * | 1973-03-26 | 1975-02-25 | Hunt Electronics Company | Light dimming system for controlling brightness and rate of change of brightness of lights |
IT1037999B (en) * | 1974-05-13 | 1979-11-20 | Bayerische Motoren Werke Ag | LIGHTING SYSTEM FOR MOTOR VEHICLES |
US3965388A (en) * | 1974-12-13 | 1976-06-22 | Arthur D. Little, Inc. | Digital light responsive switching circuit |
IT1071219B (en) * | 1976-06-30 | 1985-04-02 | Borletti Spa | DEVICE FOR THE ADJUSTMENT OF THE POWER SUPPLY TO UNBACKED BULBS OF MOTOR VEHICLES |
JPS5448976A (en) * | 1977-09-24 | 1979-04-17 | Matsushita Electric Works Ltd | Duct in stalling type dimming controller |
US4229664A (en) * | 1979-03-15 | 1980-10-21 | Blake Frederick H | Photo electric methods and apparatus for regulating electrical power consumption in stores |
US4273999A (en) * | 1980-01-18 | 1981-06-16 | The United States Of America As Represented By The Secretary Of The Navy | Equi-visibility lighting control system |
US4368406A (en) * | 1980-12-29 | 1983-01-11 | Ford Motor Company | Lamp dimmer control with integral ambient sensor |
US4516055A (en) * | 1983-05-27 | 1985-05-07 | Rockwell International Corporation | Electronic display dimming circuit |
US4575660A (en) * | 1983-08-25 | 1986-03-11 | Lutron Electronics Co., Inc. | Lighting scene control panel and control circuit |
-
1986
- 1986-12-18 GB GB08630328A patent/GB2187902A/en not_active Withdrawn
- 1986-12-23 KR KR860011134A patent/KR870009610A/en not_active Application Discontinuation
-
1987
- 1987-01-14 FR FR8700326A patent/FR2595897B1/en not_active Expired
- 1987-03-02 JP JP62045403A patent/JPS62219494A/en active Pending
- 1987-03-12 DE DE19873708024 patent/DE3708024A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
KR870009610A (en) | 1987-10-27 |
FR2595897A1 (en) | 1987-09-18 |
GB8630328D0 (en) | 1987-01-28 |
DE3708024A1 (en) | 1987-09-17 |
GB2187902A (en) | 1987-09-16 |
JPS62219494A (en) | 1987-09-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2595897B1 (en) | LIGHTING CONTROL SYSTEM FOR ALLOWING ADJUSTMENT OF THE AMBIENT LIGHT LEVEL AROUND VIDEO DISPLAYS, AND ATTENUATOR FOR IMPLEMENTING IT | |
EP0454354A3 (en) | Photographic optical system controlling apparatus | |
HK25888A (en) | Apparatus for uniform illumination employing light diffuser | |
DE69316850D1 (en) | Automatic contrast adjustment device | |
EP0555872A3 (en) | Optical apparatus for emitting light and automatic adjustment apparatus therefor | |
EP0448363A3 (en) | Automatic light modulating camera | |
FI935145A0 (en) | Panorama Camera System | |
DE69117465D1 (en) | Movable video camera for surveillance | |
EP0586047A3 (en) | Automatic focusing of cameras. | |
AU511360B2 (en) | Television camera light intensity control adjustable diaphragm and video amplification | |
GB2269294B (en) | A device for the control of the shutter of a CCD camera supplied with light from a light source | |
DE69328700D1 (en) | Method for automatic focusing for video cameras taking into account the flickering lighting | |
EP0335623A3 (en) | Video camera systems with white balance adjustment | |
FI824199A0 (en) | CONTROL FOR FRAME RELEASE AND EQUIPMENT WITH EN AUTOMATIC VIDEO SIGNAL | |
FR2689415B3 (en) | WINCH FOR THEATER SCENE HARROWS. | |
FR2490363B1 (en) | METHOD FOR CONTROLLING A TUNNEL LIGHTING INSTALLATION AND EQUIPMENT FOR IMPLEMENTING SAID METHOD | |
FR2642853B1 (en) | LIGHT INTERCEPTOR MOUNT FOR LENS | |
FR2625010B1 (en) | HIGH POWER ILLUMINATOR FOR CAMERA | |
GB9103337D0 (en) | Device for controlling automatic focusing lens device | |
EP0463723A3 (en) | High contrast light shutter system | |
IL91393A0 (en) | Video camera with automatic intensity control | |
DK4493A (en) | Means for accelerating wound healing | |
AT386686B (en) | DEVICE FOR CONTROLLING THE LIGHT SOURCE ADJUSTMENT IN LIGHTING MICROSCOPES | |
KR920005520U (en) | Video camera light automatic control | |
FR2623302B1 (en) | LENS FOR TELEVISION CAMERA |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |