Table 3 Calculated performance parameters of a telemicroscope in dependence on the extension tube length (focal length: \(f=50\) mm; f-number: \(N=2.8\); sensor size: 7.04 mm × 5.28 mm; pixel size: 4.4 μm × 4.4 μm; circle of confusion: \(c_{\mathrm{max}}=0.0059\) mm)
l [mm] | \(s_{2}\) [mm] | \(s_{1}\) [mm] | M | \(w_{1}\) [mm] | \(h_{1}\) [mm] | \(s_{\mathrm{h}}\) [m] | \(s_{\mathrm{n}}\) [mm] | \(s_{\mathrm{f}}\) [mm] | \(s_{\mathrm{f}}-s_{\mathrm{n}}\) [mm] | \(w_{1}^{\mathrm{pix}}=h_{1}^{\mathrm{pix}}\) [μm] | lat. res. [μm] |
|---|---|---|---|---|---|---|---|---|---|---|---|
1.0 | 51.0 | 2550.0 | 0.02 | 352.00 | 264.00 | 152.24 | 2507.99 | 2593.44 | 85.45 | 220.00 | 440.0 |
2.0 | 52.0 | 1300.0 | 0.04 | 176.00 | 132.00 | 152.24 | 1288.99 | 1311.20 | 22.20 | 110.00 | 220.0 |
5.0 | 55.0 | 550.0 | 0.10 | 70.40 | 52.80 | 152.24 | 548.02 | 551.99 | 3.97 | 44.00 | 88.0 |
10.0 | 60.0 | 300.0 | 0.20 | 35.20 | 26.40 | 152.24 | 299.41 | 300.59 | 1.18 | 22.00 | 44.0 |
25.0 | 75.0 | 150.0 | 0.50 | 14.08 | 10.56 | 152.24 | 149.85 | 150.15 | 0.30 | 8.80 | 17.6 |
50.0 | 100.0 | 100.0 | 1.00 | 7.04 | 5.28 | 152.24 | 99.93 | 100.07 | 0.13 | 4.40 | 8.8 |
75.0 | 125.0 | 83.3 | 1.50 | 4.69 | 3.52 | 152.24 | 83.29 | 83.38 | 0.09 | 2.93 | 5.9 |
100.0 | 150.0 | 75.0 | 2.00 | 3.52 | 2.64 | 152.24 | 74.96 | 75.04 | 0.07 | 2.20 | 4.4 |
150.0 | 200.0 | 66.7 | 3.00 | 2.35 | 1.76 | 152.24 | 66.64 | 66.70 | 0.06 | 1.47 | 2.9 |
200.0 | 250.0 | 62.5 | 4.00 | 1.76 | 1.32 | 152.24 | 62.47 | 62.53 | 0.05 | 1.10 | 2.2 |