Matl-optical glass; 1.860 in. H; 1.088 in. W; 1.450 in. Lg
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.
Classification: Military equipments not identified by kind
NSN
NSN 5999-00-914-7633
NSN 5835-01-143-9143
NSN 6105-00-604-9647
NSN 5998-01-609-8507
NSN 5985-00-771-0460
NSN 5975-01-215-1205
NSN 4140-01-563-5618
NSN 5935-01-661-1222
NSN 5975-00-909-5174
NSN 5945-01-323-6496
NSN 5996-01-345-1134