Patent ID: 6927856

Claim:
A method for conducting an imaging, spectrally resolving spectroscopic measurement of a moving or flowing target, in which method the electromagnetic radiation obtained from said target is focused by means of imaging optics to produce an image on the screen of a two-dimensional matrix detector at least via a first and a second filter which transmit electromagnetic radiation in manners differing from each other, wherein said at least first and second filter form on the screen of the detector at least a first and a second filter area that together partly and only partly cover the light-sensitive area of the detector, and wherein the properties of at least one fixed part of the target are determined spectroscopically by comparing and/or combining spectrally resolved information corresponding to said fixed part of the target and said information is recorded sequentially in time when an image point which corresponds to said fixed part of the target and is focused on the screen of the detector without beamsplitting travels as a result of the movement of the target substantially via said at least first and second filter area, and wherein the area of the screen of the detector remaining outside said at least first and second filter area is used for at least one other imaging non-spectroscopic measurement and/or visualization of the target.