Patent ID: 11927477
Assignee: TECHNOTEAM HOLDING GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A method for photometrical charting of a light source clamped within a positioning device, the positioning device comprising a plurality of machine coordinate systems which move against each other according to a kinematic chain, and the light source having an object coordinate system by means of a luminance density measurement camera arranged stationary relative to a world coordinate system, the method comprising:
moving a light source between a first actual measurement position and at least one further actual measurement position along the kinematic chain of the positioning device within the world coordinate system,
recording a luminance density measurement image describing the spatial distribution of a photometric characteristic within a measurement surface by means of the luminance density measurement camera in each actual measurement position with the light source turned on,
recording the position and/or orientation of the object coordinate system relative to the world coordinate system in each actual measurement position in direct reference to the world coordinate system without reference to the kinematic chain of the positioning device,
wherein at least one capturing plane is arranged stationary in the world coordinate system, that the position of the object coordinate system in the world coordinate system is determined, and the respective orientation of the object coordinate system is determined for each position from a charting of a modulated illumination emitted with a known direction relative to the object coordinate system and captured on the at least one capturing plane, and
generating the modulated illumination by means of a diffractive-optical element as a projection matrix comprising at least one projection structure projected along a pilot beam onto a capturing plane in each position from the charting of a modulated illumination.