EP1528841A3 - Lighting control - Google Patents
Lighting control Download PDFInfo
- Publication number
- EP1528841A3 EP1528841A3 EP04256681A EP04256681A EP1528841A3 EP 1528841 A3 EP1528841 A3 EP 1528841A3 EP 04256681 A EP04256681 A EP 04256681A EP 04256681 A EP04256681 A EP 04256681A EP 1528841 A3 EP1528841 A3 EP 1528841A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- input signal
- illumination level
- lighting control
- perceived illumination
- lighting system
- 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.)
- Withdrawn
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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
- H05B45/22—Controlling the colour of the light using optical feedback
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0325514 | 2003-10-31 | ||
GB0325514A GB2407654B (en) | 2003-10-31 | 2003-10-31 | Lighting control |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1528841A2 EP1528841A2 (en) | 2005-05-04 |
EP1528841A3 true EP1528841A3 (en) | 2005-07-06 |
Family
ID=29725770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04256681A Withdrawn EP1528841A3 (en) | 2003-10-31 | 2004-10-28 | Lighting control |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1528841A3 (en) |
GB (1) | GB2407654B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE497687T1 (en) | 2006-10-27 | 2011-02-15 | Airbus Operations Gmbh | LIGHT MONITORING SYSTEM AND METHOD FOR OPERATION OF SUCH SYSTEM |
GB2453375A (en) * | 2007-10-05 | 2009-04-08 | Cambridge Display Tech Ltd | Driving a display using an effective analogue drive signal generated from a modulated digital signal |
EP2081414A1 (en) * | 2008-01-09 | 2009-07-22 | Infineon Technologies Austria AG | Sigma delta LED driver |
ATE488118T1 (en) | 2009-03-12 | 2010-11-15 | Infineon Technologies Austria | SIGMA DELTA POWER SOURCE AND LED DRIVER |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471052A (en) * | 1993-10-25 | 1995-11-28 | Eaton Corporation | Color sensor system using a secondary light receiver |
WO2001024584A1 (en) * | 1999-09-29 | 2001-04-05 | Color Kinetics, Inc. | Systems and methods for calibrating light output by light-emitting diodes |
US6349023B1 (en) * | 2000-02-24 | 2002-02-19 | Robotic Vision Systems, Inc. | Power control system for illumination array |
US20020047624A1 (en) * | 2000-03-27 | 2002-04-25 | Stam Joseph S. | Lamp assembly incorporating optical feedback |
DE10146094A1 (en) * | 2001-09-19 | 2003-04-03 | Bosch Gmbh Robert | Illumination arrangement, e.g. for auto radio or navigation system, has control unit that determines control value for voltage supply depending on intensity class of light source or sources |
US20030076056A1 (en) * | 2001-10-22 | 2003-04-24 | Lumileds Usa | Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6803891B2 (en) * | 2000-01-27 | 2004-10-12 | Pioneer Corporation | Apparatus for driving light-emitting display |
ATE400984T1 (en) * | 2002-01-03 | 2008-07-15 | Dialog Semiconductor Gmbh | DIGITAL CONTROL FOR FLUORESCENT LAMPS |
-
2003
- 2003-10-31 GB GB0325514A patent/GB2407654B/en not_active Expired - Fee Related
-
2004
- 2004-10-28 EP EP04256681A patent/EP1528841A3/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471052A (en) * | 1993-10-25 | 1995-11-28 | Eaton Corporation | Color sensor system using a secondary light receiver |
WO2001024584A1 (en) * | 1999-09-29 | 2001-04-05 | Color Kinetics, Inc. | Systems and methods for calibrating light output by light-emitting diodes |
US6349023B1 (en) * | 2000-02-24 | 2002-02-19 | Robotic Vision Systems, Inc. | Power control system for illumination array |
US20020047624A1 (en) * | 2000-03-27 | 2002-04-25 | Stam Joseph S. | Lamp assembly incorporating optical feedback |
DE10146094A1 (en) * | 2001-09-19 | 2003-04-03 | Bosch Gmbh Robert | Illumination arrangement, e.g. for auto radio or navigation system, has control unit that determines control value for voltage supply depending on intensity class of light source or sources |
US20030076056A1 (en) * | 2001-10-22 | 2003-04-24 | Lumileds Usa | Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes |
Non-Patent Citations (1)
Title |
---|
SINGH S S ET AL: "A study of sigma-delta modulation control strategies for multi-level voltage source inverters", 7TH. INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND VARIABLE SPEED DRIVES. PEVD'98. LONDON, SEPT. 21 -23, 1998, IEE CONFERENCE PUBLICATION NO. 456, LONDON : IEE, UK, 21 September 1998 (1998-09-21), pages 347 - 352, XP006504927, ISBN: 0-85296-704-7 * |
Also Published As
Publication number | Publication date |
---|---|
GB0325514D0 (en) | 2003-12-03 |
GB2407654B (en) | 2007-08-08 |
EP1528841A2 (en) | 2005-05-04 |
GB2407654A (en) | 2005-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20041110 |
|
AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
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PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: AL HR LT LV MK |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20081209 |