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1. (WO2014202228) METHOD FOR CALIBRATING A SENSOR DEVICE FOR REGULATING THE ALIGNMENT OF AN ILLUMINATION DEVICE AND ILLUMINATION SYSTEM

Pub. No.:    WO/2014/202228    International Application No.:    PCT/EP2014/001687
Publication Date: Thu Dec 25 00:59:59 CET 2014 International Filing Date: Sat Jun 21 01:59:59 CEST 2014
IPC: A61B 19/00
Applicants: DRÄGERWERK AG & CO. KGAA
Inventors: SCHLICHTING, Stefan
SCHLAEFER, Alexander
HARTMANN, Florian
Title: METHOD FOR CALIBRATING A SENSOR DEVICE FOR REGULATING THE ALIGNMENT OF AN ILLUMINATION DEVICE AND ILLUMINATION SYSTEM
Abstract:
The invention relates to a method for calibrating a sensor device (110) for regulating the alignment of an illumination device (120) for modifying the position of an illumination region generated by the illumination device (120) in an illumination direction (A), comprising the following steps: a) generating a light spot (10), emanating from the illumination device (120) in the illumination direction (A), on a calibration surface (310), b) defining a first calibration point (20a) on the calibration surface (310), c) identifying the position of the light spot (10) on the calibration surface (310) using the sensor device (110), d) determining the distance (D) between the calibration point (20a) and the identified position of the light spot (10), e) modifying the alignment of the illumination device (120), f) repeatedly performing steps c) to e) until a stop criterion is reached, g) defining the first calibration point (20a) and the identified position of the light spot (10) on the calibration surface (310) as a correspondence point for the relationship between the coordinate system of the sensor device (110) and the coordinate system of the illumination device (120), h) defining at least one further calibration point (20b, 20c), i) performing steps c) to g) for the at least one further calibration point (20b, 20c).