Brightness sensor for use at windscreen of motor vehicle i.e. passenger car, during driving in e.g. tunnel, has direction and global sensors respectively detecting global and anisotropic light intensities in solid angles

Brightness sensor for use at windscreen of motor vehicle i.e. passenger car, during driving in e.g. tunnel, has direction and global sensors respectively detecting global and anisotropic light intensities in solid angles

The sensor (100) has a rain sensor, and a direction sensor (110) detecting anisotropic light intensity in a fixed solid angle (115). A global sensor (120) detects global light intensity in another fixed solid angle (125), where one of the solid angles (125) is larger than the other solid angle (115)...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HODAPP, BRUNO, PACK, ANDREAS
Format: Patent
Sprache:eng ; ger
Schlagworte:
ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PERFORMING OPERATIONS
PHYSICS
RADIATION PYROMETRY
TESTING
TRANSPORTING
VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:The sensor (100) has a rain sensor, and a direction sensor (110) detecting anisotropic light intensity in a fixed solid angle (115). A global sensor (120) detects global light intensity in another fixed solid angle (125), where one of the solid angles (125) is larger than the other solid angle (115). An evaluation circuit (130) i.e. microcontroller, evaluates signals of the direction sensor and/or the global sensor. The evaluation circuit adjusts a parameter i.e. reinforcement value, for evaluating the signal of the direction sensor depending on the signal of the global sensor. Ein Helligkeitssensor zum Erkennen einer dritten Beleuchtungsstärke umfasst einen Richtungssensor zum Erkennen einer ersten Beleuchtungsstärke in einem festgelegten ersten Raumwinkel und einen Globalsensor zum Erkennen einer zweiten Beleuchtungsstärke in einem festgelegten zweiten Raumwinkel.