Table 7. Fixation target optical and opto-mechanical tolerances.
Element |
Radius
(%) |
Diameter
(um) |
Material
(index, Abbe #) |
Irreg.
(waves) |
Decenter
(µm) |
Tilt
(arcmin) |
Wedge
TIR (µm) |
Thickness
(µm) |
Airspace
(µm) |
---|---|---|---|---|---|---|---|---|---|
1 | 0.25/0.0 | +0/-10 | 0.001, 0.8% | 1.5/1.5 | 25 | 10.3 | 20 | 100 | 70 |
2 | 1.5/1.0 | +0/-10 | 0.001, 0.8% | 1.0/1.0 | 25 | 4.1 | 10 | 100 | 50 |
3 | 1.0/0.23 | +0/-10 | 0.001, 0.8% | 1.0/1.0 | 25 | 6.9 | 25 | 100 | 70 |
4 | 3.7/0.0 | +0/-10 | 0.001, 0.8% | 1.0/1.0 | 25 | 8.6 | 20 | 100 | N/A |