Ernst Leitz (Firm) · Wetzlar : Ernst Leitz · leaf 14
e 2 u 10° 20° 30° 40° 50° 60° 70° 80° 90° 100° 110° 120° 130° 140° Numerical apertures. Dry series n = 1.00 0.09 0.18 0 26 0.34 0.42 0.50 0.57 I0.64 0.71 0.77 0.82 0.87 0.91 0.94 Water-Immersion« = 1.33 0.12 0.24 0.35 0.46 0.56 0.66 0.76 0.85 0.94 1.02 1.09 1.15 1.20 1.25 HomogeneousOil-immersion… … The objectives designed for the Edinger apparatus of 64, 42and 24 mm focal distance and the 80 mm Projection objective havebeen found to be very useful for a number of purposes and havecome into great favor. In manufacturing these objectives we havemade use of the principles involved in the…
Microscopy
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