Abstract: A laser block beam splitter system for microscopes comprising a main body housing, a laser safety filter, two optical trains, a pair of beam splitters, and three viewing stations. The beam splitters provide an image along both an axial beam path and a transverse beam path relative to the main body housing. The laser safety filter is disposed at the distal portion of both optical trains before the pair of beam splitters to protect the viewing stations from laser radiation. The three viewing stations of the laser block beam splitter system are thereby continually protected from laser radiation by the laser safety filter.