49
line
50
If /2 for the monochromatic light source
of foldout-11 is 11.6 micro inches, the air gap
of
wedge (flatness error) is ________ micro inches.
contact
(CONTINUED ON PAGE 46)
56
evenly
57
Look at foldout-12. The points of contact
spaced
(contact points) are those __________ where the
slope
mating surface of the optical flat make _______
constant
with the surface of the piece whose flatness is
surface
measured.
flat
(CONTINUED ON PAGE 46)
63
64
The interference bands at A and D in fold-
out-13 appear to be the same in number and spac-
No Response Required
ing. With this condition, you cannot tell whet-
her the surface measured is _______ or _______ .
(CONTINUED ON PAGE 46)
71
contact
72
When you compare E in foldout-13 with D,
you see that a slight pressure on the center of
center
the flat has caused the number of _____________
_______ to __________ .
edge/s
(sides)
(CONTINUED ON PAGE 46).
79
difference
80
From foldout-14 you can
see that W is the
heights
____________ of the standard
block and L is the
number
___________ from the leading
___________ of one
block to the leading edge of
the other block.
bands
(CONTINUED ON PAGE 46)
60
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