Multispectral sensor

Details Multispectral sensor Multispectral sensor

G - Physics

01

J

G01J 3/28 (2006.01) G01J 5/60 (2006.01)

Patent

CA 2079515

- 9 - ABSTRACT OF THE DISCLOSURE MULTISPECTRAL SENSOR The invention relates to a multispectral sensor with several filter and sensor elements for different spectral ranges of a radiation to be measure. The object of the invention is to so further develop a multispectral sensor of this type that it can be manufactured as a discreet component with small dimensions and has a high measuring accuracy, whilst obtaining a high output signal. This object is achieved in that the beam is broken down by a optical device into several partial beams and reflected onto filters. Behind the filters are located radiation-sensitive elements, which detect the spectral range corresponding to the transmission range of the in each case upstream filter. The remaining spectral range of the partial beam is reflected by the filter surface towards the other filters. Thus, each filter is supplied with the associated spectral ranges of all the partial beams.

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