Multspectral 5-Band Camera
In addition to our hyperspectral cameras, we have added a 5-band multispectral camera which costs much less. The filter bands are discrete narrow bands with no overlap which is typical for an RGB color sensor. The bands are:
The filter also has a stepped thickness design where the thickness of the IR filters are thinner than the visible filters in order to compensate for the typical lens IR focal shift.
By taking a series of pictures with sufficient overlap, software can extract these bands are form new images of each band or can create a 5-layer datacube for further analysis.
We can install this filter on a sensor with the Color Filter Array (CFA) or for higher performance, we can remove the CFA to create a monochrome sensor and then install the multispectral filter on top. With a monochrome converted sensor, you have all the pixels under each filter stripe seeing the particular freqnency.