Table 1.
Characteristics of the main ghosts, formed by the backreflection from detector and another optical surface.
| Surface | Symbol | zXP, mm | zg, mm | fg, mm | f/# | Rdet, % | R, % |
|---|---|---|---|---|---|---|---|
| Detector glass, front | G1 | −1273.72 | −12.19 | 731.88 | 14.64 | 15.0 | 0.3 |
| Detector glass, rear | G2 | −1267.14 | −5.60 | 731.88 | 14.64 | 15.0 | 0.3 |
| Filter glass, front | F1 | −1335.83 | −74.30 | 731.88 | 14.64 | 15.0 | 0.23 |
| Filter glass, rear | F2 | −1331.22 | −69.69 | 731.88 | 14.64 | 15.0 | 0.23 |
| Relay objective, L5 lens front | O3/L5-1 | −41.71 | −30.46 | −385.98a | 7.72 | 15.0 | 0.23 |
| Relay objective, L5 lens rear | O3/L5-2 | −92.22 | −82.23 | 249.06 | 4.98 | 15.0 | 0.23 |
| Relay objective, L4 lens rear | O3/L4-2 | −132.01 | −114.02 | −282.36a | 5.65 | 15.0 | 0.23 |
Notes. zXP – exit pupil position, zg – effective focus position, fg – effective focal length, f/# – working f/#, Rdet – reflectance of the detector, R – reflectance of the second surface. z = 0 position corresponds to the detector plane, z – negative direction is towards the entrance aperture. Positive focal length corresponds to the situation where a ghost image is formed on the same side along with parent beam with respect to the center of the optical axis.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.