. English: Single Lens Microscope, called 'Wilson's screw-barrel microscope', after an English manufacturer who popularized it. Seven lenses (5 — 00) are shown at the bottom of the upper half. The smaller the lens, the more curved was the surface and thus the stronger was the magnification. For each lens, there was a special mount (b, q). Focussing was performed by turning the large screw against the spring. In the assembled state shown in the bottom half (with objects; strip with circles) the eye of the observer would be on the left side, an illumination on the right side. Deutsch: Einlinsige
. English: Single Lens Microscope, called 'Wilson's screw-barrel microscope', after an English manufacturer who popularized it. Seven lenses (5 — 00) are shown at the bottom of the upper half. The smaller the lens, the more curved was the surface and thus the stronger was the magnification. For each lens, there was a special mount (b, q). Focussing was performed by turning the large screw against the spring. In the assembled state shown in the bottom half (with objects; strip with circles) the eye of the observer would be on the left side, an illumination on the right side. Deutsch: Einlinsiges Mikroskop, genannt 'Wilson's screw-barrel microscope' (Wilsons Schraub-Rohr Mikroskop), nach einem englischen Hersteller. Sieben Linsen (5 — 00) sind am unteren Rand des oberen Bilds zu sehen. Je kleiner die Linse, desto stärker war ihre Krümmung und somit die Bildvergrößerung. Jede hatte eine eigene Fassung (b, q). Scharfstellen wurde durch drehen der großen Schraube gegen eine Metallfeder erreicht. Im zusammengesetzten Zustand im unteren Bild (mit Objekten; Streifen mit Scheibchen) wäre das Auge des Beobachters links, eine Beleuchtung rechts. 1762. Joseph G. Gall. 1269 Wilson's Screw Barrel Microscope 1761
Size: 1964px × 2546px
Photo credit: © The Picture Art Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., /, /., 1762., , joseph
