

In 1853 Bausch and Lomb, both Immigrants from Germany, started by making These are very nice examples of the Bausch & Lomb StereoZoom 4 microscope pods that started it all. Black lower portion and white upper portion (sometimes metal later instruments, of plastic) mean these were of the later production range. The StereoZoom 4 was introduced in the mid-1950s and remained in production for over 50 years with very little change!2 As shown in the Bausch & Lomb catalog: Microscopes, Microtomes. The instrument (1.044) with.This was by far the most popular of the StereoZoom series, with a zoom range of 0.7x to 3x. Magnification can be further varied by exchanging the oculars (B&L has eyepiece pairs from 10x to 33x designed for use with the stereo pod), or by threading an auxiliary objective adapter onto the front of the pod. The later are available in various magnifications ranging from 0.3x to 2x, but they alter the working distance of the pod.
...

Bausch And Lomb Microscope Catalog Serial Number Letters And
General Catalog of Laboratory Supplies and EquipmentCatalogMuseum Home © R. Quekett Microscopical Club, Oxford (1996),For a list of serial number letters and their years of use.5 The Abbe 56 is illustrated in: MacAlaster BicknellCo. Notes on Modern MicroscopeManufacturers. The AbbeRefractometer The Pulfrich Refractometer The Immersion Refractometer.)2 As shown in the Bausch & Lomb catalog: Microscopes,Microtomes, Colorimeters, Optical Measuring Instruments and Accessories.Bausch & Lomb Optical Company, New York (1926) pg 171.3 A patent application for this instrument was filed in 1935 and issued (2,080,841) in 1937.3 See Bracegirdle, Brian. This exhibitAbbe refractometer manual and a set of B&L1 Entwurf zu einer Chronik der Abteilung Mess(An Outline of the History of the Measurement Division) isThe following entry: 1919 Die amerikanische Firma Bausch &Lomb Rochester (USA) und die Firma Adam Hilger in London bauenNach den ihr durch den Krigesausgang übereigneten PatetenZeiss-Geräte mit den Zeiss' schen Originalbezeicnumgen, z.B.:Refractometer nach Abbe Refraktometer nach Pulfrich Eintauchrefraktometer.(As a result of patents that were transferred because of the outcomeOf the war, the American firm Bausch & Lomb Rochester (USA)And the firm of Adam Hilger in London were able to produce instrumentsUsing original Zeiss e.g. A detailed history, The Evolution of the AbbeRefractometer, traces the development of this valuableIs in its original light hardwood case (15 1/8"h x 81/2"d x 7 1/4"w) and has its original glassTest block (n D = 1.5137 0.798" x 0.466"X 0.146", with one side and one end polished).
