Vorrichtung und Verfahren zur Bestimmung einer Brechzahl eines Messobjekts

WO 2009112288 A1 UPAB: 20090928 NOVELTY - The system (30) has a holding device (39) holding a measuring object (31) between an integrated sensor element (35) and a light source (32), so that a layered structure (37) is arranged between the measuring object and an optoelectronic sensor (36) e.g. photodiode, and an output signal from the optoelectronic sensor to a light (33) with the pre-defined wavelength changes depending on a refractive index of the object. An index determining device (40) i.e. evaluation unit, determines the refractive index of the object based on the output signal of the optoelectronic sensor. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for determining a refractive index of a measuring object. USE - Refractometer system for determining a refractive index of a measuring object i.e. optical medium, for chemical and biological applications. ADVANTAGE - The system enables determination of the refractive index of the measuring object in a simple manner at low cost, and allows real time determination of dynamic refractive index variations of the object. The system avoids the need of additional optical components, so that the system can be integrated completely in a single chip