You can buy through our e-commerce and install it yourself in a few minutes. If you already have purchased your beam splitter, you should watch Dr. Sunil. Beamsplitters separate incident light into two or more beams of the same wavelength. These exiting beams are differentiated by either their optical power (non-polarizing) or polarization states (polarizing). Installation of Slit Lamp Haag Streit Five Step with Beam Splitter EROSE, EROSE Installation of Slit Lamp Haag Streit Five Step with Beam Splitter, EROSE Ins. Whether housed in box-type, module-type, bare fiber, rack-mount, or tube-type configurations, each serves a specific purpose, from wall mounting to integration into patch panels or equipment racks.