Tube Lenses

OptoSigma Tube Lenses are designed to be used with our infinity corrected objectives to focus the image of YAG (fundamental to 3rd or 4th harmonic) and Fiber lasers.  Input light should enter the threaded end of the Tube Lens to minimize chromatic and spherical aberrations.  OptoSigma's Tube Lenses are an excellent accompaniment to our OUCI Modular Microscope.