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Nikon Autocoliimators 6B and 6D both employ 70mm aperture
lenses to produce clear reflected images. they also feature
extemely accurate double line reticle for improved detection
Both give readings of angular displacement to 0.5 second of
arc using an easy to read large diameter mocrometer drum.
model 6B os a bright viewfield type, while 6D is a dark viewfield
type . Model 6D os very effective when measuring with a small
plane
mirror or a low- reflective plane surface
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| Specifications |
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| Telescope magnification |
38x |
| Objective |
f=700mm;
effective aperture : 70mm |
| Measuring range |
30minutes of arc
(both vertical and horizontal axes) |
| Minimum reading |
0.5 second of arc |
| Readout system |
Adjustment in viewfield and reading on micrometer |
| Measuring accuracy |
0.5 second of arc within a range of 6 minutes of arc
1 second of arc within a range of 30 minutes of arc |
| Viewfield |
6B : bright 6D : dark |
| Light source |
6V 15W special buld |
| Power supply |
AC 100V 50/60Hz |
| Dimensions of main body |
Outer diameter of lens barrel support : 68mm Overall length : approx 490mm |
| Weight(including stand) |
Approx 30Kg |
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