Patent ID: 6952010

Claim:
An optical system comprising: a first detector, capable of detecting radiation in a first wavelength band; a group of detectors, said group comprising two or more detectors, each of which is capable of detecting radiation in a second wavelength band; a dichroic beamsplitter cube, dividing an incoming beam of electromagnetic radiation into a transmitted beam comprising said first wavelength band and a reflected beam comprising said second wavelength band; and an objective lens receiving said incoming beam of electromagnetic radiation, directing it through said dichroic beamsplitter cube, and focusing said transmitted beam of radiation onto said first detector and said reflected beam onto one of said two or more detectors in said group of detectors; wherein said dichroic beamsplitter cube is rotated about an appropriate axis, the focus of said transmitted beam does not move and the focus of said reflected beam is switched from said one of said one or more detectors in said group of detectors to another detector in said group.