VORRICHTUNG UND VERFAHREN ZUR LICHTANALYSE

VORRICHTUNG UND VERFAHREN ZUR LICHTANALYSE

Color determination device has light sources for illuminating a tooth surface and a recording unit (18) for recording the reflected light which first passes through a polarization filter (30). At least two light sources (12, 16) are used to illuminate the tooth surface (14) at different times from d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: POKORNY, WALTER, KERSCHBAUMER, HARALD, PYE, GRAHAM, ROHNER, GOTTFRIED
Format: Patent
Sprache:ger
Schlagworte:
COLORIMETRY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHYSICS
RADIATION PYROMETRY
TESTING
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Beschreibung
Zusammenfassung:Color determination device has light sources for illuminating a tooth surface and a recording unit (18) for recording the reflected light which first passes through a polarization filter (30). At least two light sources (12, 16) are used to illuminate the tooth surface (14) at different times from different angles with a polarization filter (26) placed in front of one of the light sources when it is switched on. The polarization direction of the two filters is approximately at right angles to each other.