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Umgebungslichtsensor.

Info

Publication number
DE69918185D1
DE69918185D1 DE1999618185 DE69918185A DE69918185D1 DE 69918185 D1 DE69918185 D1 DE 69918185D1 DE 1999618185 DE1999618185 DE 1999618185 DE 69918185 A DE69918185 A DE 69918185A DE 69918185 D1 DE69918185 D1 DE 69918185D1
Authority
DE
Grant status
Grant
Patent type
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 - Fee Related
Application number
DE1999618185
Other languages
English (en)
Other versions
DE69918185T2 (de )
Inventor
W Hill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Control Devices Inc
Original Assignee
Control Devices Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4204Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/02Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1415Dimming circuits
    • B60Q1/1423Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00Photometry, e.g. photographic exposure meter
    • G01J1/42Photometry, e.g. photographic exposure meter using electric radiation detectors
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B37/00Circuit arrangements for electric light sources in general
    • H05B37/02Controlling
    • H05B37/0209Controlling the instant of the ignition or of the extinction
    • H05B37/0218Controlling the instant of the ignition or of the extinction by the ambient light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30Indexing codes relating to the vehicle environment
    • B60Q2300/31Atmospheric conditions
    • B60Q2300/312Adverse weather
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30Indexing codes relating to the vehicle environment
    • B60Q2300/31Atmospheric conditions
    • B60Q2300/314Ambient light
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30Indexing codes relating to the vehicle environment
    • B60Q2300/33Driving situation
    • B60Q2300/332Driving situation on city roads
    • B60Q2300/3321Detection of streetlights
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30Indexing codes relating to the vehicle environment
    • B60Q2300/33Driving situation
    • B60Q2300/337Tunnels or bridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40Indexing codes relating to other road users or special conditions
    • B60Q2300/42Indexing codes relating to other road users or special conditions oncoming vehicle
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BINDEXING SCHEME RELATING TO CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. INCLUDING HOUSING AND APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies
    • Y02B20/40Control techniques providing energy savings
    • Y02B20/46Control techniques providing energy savings based on detection of the illumination level
DE1999618185 1998-10-12 1999-10-12 Umgebungslichtsensor. Expired - Fee Related DE69918185D1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10385098 true 1998-10-12 1998-10-12
PCT/US1999/023746 WO2000022881A3 (en) 1998-10-12 1999-10-12 Ambient light sensor

Publications (1)

Publication Number Publication Date
DE69918185D1 true DE69918185D1 (de) 2004-07-22

Family

ID=22297345

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1999618185 Active DE69918185T2 (de) 1998-10-12 1999-10-12 Umgebungslichtsensor.
DE1999618185 Expired - Fee Related DE69918185D1 (de) 1998-10-12 1999-10-12 Umgebungslichtsensor.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1999618185 Active DE69918185T2 (de) 1998-10-12 1999-10-12 Umgebungslichtsensor.

Country Status (5)

Country Link
US (1) US6396040B1 (de)
DE (2) DE69918185T2 (de)
EP (1) EP1196306B1 (de)
ES (1) ES2222040T3 (de)
WO (1) WO2000022881A3 (de)

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Also Published As

Publication number Publication date Type
DE69918185T2 (de) 2005-06-30 grant
WO2000022881A2 (en) 2000-04-20 application
US6396040B1 (en) 2002-05-28 grant
WO2000022881A3 (en) 2002-02-14 application
ES2222040T3 (es) 2005-01-16 grant
EP1196306B1 (de) 2004-06-16 grant
EP1196306A2 (de) 2002-04-17 application
EP1196306A4 (de) 2002-04-17 application

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