3
round
4
In addition to a _______ body with _______
_____________ , optical flat requirements include
flat
the use of materials which are ______________
(clear).
10
lowest
11
From the table in foldout-8 you can reason
that _______ _______ ______ is preferred in op-
linear
tical flat construction because like the other
materials it is ___________ and has the _________
expansion
coefficient of ___________ ____________ of all
the materials listed.
18
diameter
19
We have described the optical flat as a
round disc which is usually made of ___________
thickness
_______ _______, because the material is _______
and had the _________ temperature coefficient of
_________ ________ of all materials considered.
24
mating
25
The prefix mono means one, and the word
surface
chromatic is directly associated with color.
monochromatic
You can reason that a monochromatic light is a
light
light of____________.
32
33
As you study foldout-9, you must realize
bands
that the value 11.6 micro ( ) inches is true
half
only for ________-_______ wavelength of the color
_________________ .
39
number
40
The conditions at A in foldout-10 are such
that _____ interference _____ are produced be-
spacing
cause the gage block and optical flat _________
__________ are _____ and parallel.
width (thickness)
51
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