Special Features:

6.295 in. Max lg, 5.353 in. Max w, 0.240 in. Max thk; front surface anti-reflective coating per cage 47904 specification 6329434, bearing surface electro-magnetic coated

Properties:

A light transmitting item consisting of a transparent, flat glass body having two plane-parallel surfaces, either with only nonabsorbing dielectric coatings or absorbing and nonabsorbing coatings of a thickness nearly equivalent to the wavelength of the transmitted light. Interference begins at the thin bordering surfaces of the coatings, the penetrating light waves being superimposed on the reflected light waves. The item can be installed in various optical insturments, to serve as an eye protecting device.