1575549

Optical instrument light filter

1575549 Description

2.5637 inches diameter, 0.985 inches thickness, sight unit, optical fsc application data.

Properties of 1575549

Diameter:
2.5637 inches
Thickness:
0.985 inches
Density Variability:
Not variable
Surface Material:
Glass
White Light Transmission In Percent:
30.0 single filter and 18.0 pair of filters with parallel axes and 0.05 pair of filters with crossed axes
Surface Parallelism:
60.0 seconds
Fsc Application Data:
Sight unit, optical
NSN:
1240-00-819-4716
Description:
Filter,light,optical Instrument
Cage Code:
10001

Definition Optical Instrument Light Filter

An item having two plane-parallel surfaces and consisting of a polarizing material bonded between glass or plastic. This item transmits light in only one plane and is usually used in pairs to vary the light transmitted into or through an optical instrument. Excludes window, optical instrument.

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Last modified 04/28/2024