12278913

Interference light filter

12278913 Description

Goes on XM1 tank end item identification, plastic, cellulose acetate nitrate material, plastic cellulose acetate nitrate iii material.

Properties of 12278913

End Application:
Goes on xm1 tank
Surface Material:
Glass
Surface Parallelism:
5.0 minutes
Material:
Plastic, cellulose acetate butyrate
Material:
Plastic cellulose acetate butyrate
NSN:
1240-01-079-2895
Description:
Filter,light,interference
Cage Code:

Definition Interference Light Filter

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.

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Last modified 05/04/2024