公开(公告)号：US20240344975A1

公开(公告)日：2024-10-17

申请号：US18751514

申请日：2024-06-24

Applicant: Instrument Systems GmbH

Inventor： Elisabeth BOTHSCHAFTER ,  Ferdinand DEGER ,  Markus ESTERMANN ,  Reto HÄRING ,  Christoph KAPPEL ,  Jürgen NEUMEIER ,  Roland SCHANZ ,  Christof THALHAMMER

IPC: G01N21/31 ,  G01N21/25 ,  G06T7/90

CPC classification number: G01N21/31 ,  G01N21/251 ,  G06T7/90 ,  G01N2201/06 ,  G01N2201/0634 ,  G06T2207/10024 ,  G06T2207/20021

Abstract: The disclosure relates to an imaging system which is designed for two-dimensional, spatially resolved measurement of radiometric and/or photometric measured variables, for example the color coordinates of light emitted by a test object. An image sensor is provided for receiving a first part of the light and for generating a two-dimensional digital image of the light emission of the test object. A measuring unit receives a second part of the light and detects radiometric and/or photometric measured variables for different measuring spots or measuring angles. A computing unit transforms the image values of at least a few image points of the generated image, the transformation taking into account the measured variables detected for the measuring spots or measuring angles. The disclosure provides a system which is improved in relation to the prior art. For example, determining the color coordinates when measuring displays with spatially inhomogeneous spectral emission is more precise than in the prior art. The disclosure comprises an imaging spectrometer which is able to determine the measured variables separately for each measuring spot or measuring angle. Alternatively, two or more measuring units can be provided, a measuring unit being associated with each measuring spot or measuring angle. The disclosure also relates to a method for two-dimensional, spatially resolved measurement of radiometric and/or photometric measured variables, for example the color coordinates of light, which uses such an imaging system.