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Model
10722A
Instruction Manual
GENERAL INFORMATION
10722A PLANE MIRROR CONVERTER
The Hewlett-Packard
10722A
Plane Mirror Converter (Figure
1)
is a n accessory for the HP
10702A
Linear Interferometer. With the
10722A
Plane Mirror Converter, and an additional HP
10703A
Retro-
reflector, the HP
1070%
Linear Interferometer can be converted to a
10706A
Plane Mirror Interferom-
eter. This configuration allows the
5501A
Laser Measurement System to make measurements of axial
displacement of a plane mirror. The stringent angular alignment requirements imposed by roof
prisms or single-beam arrangements is eliminated.
Figure
1 .
Model
10722A
Plane Mirror Converter
SPECIFICATIONS
Specifications for the HP
10722A
Plane Mirror Converter and Plane Mirror Reflector are as follows:
Plane Mirror Converter
Dimensions:
See Figure
2.
Weight: .077
pounds
(35
grams)
Performance:
As for the Model
5501A
Laser Transducer System and
10702A
Linear Interferometer
Plane Mirror Reflector (not supplied)
Flatnessf:
Must not deviate by more thanA/8 (3 microinches) over any 0.8 inch
(20
millimeter) dimension.
Surface Finish:
Metal
0.1
-
0.3
microinch arithmetic average.
Optical 80
-
40 (Mil-0-13830)
Maximum Angular Misalignment:
Depends on distance between interferometer and plane mirror.
Typical values are:
k25
arc-minutes for
10
inches
(254
millimeters)
k15
arc-minutes for
20
inches
(508
millimeters)
*5
arc-minutes for
50
inches
(1270
millimeters)
*In X-Y stage applications, mirror flatness affects the overall accuracy of the system.
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1
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