Technical Milestones

	1846 until 1869 1869 Abbe refractometer for determining the refractive index of solid and liquid substances 1866 The 1000th microscope leaves the workshop 1857 Carl Zeiss sells his first compound microscope 1846 Carl Zeiss sets up a workshop for precision mechanics and optics in Jena and starts to build simple microscopes in September 1847		Return to Overview Milestones 2005 until 2007 2000 until 2004 1995 until 1999 1990 until 1994 1985 until 1989 1980 until 1984 1970 until 1979 1960 until 1969 1950 until 1959 1930 until 1949 1910 until 1929 1890 until 1909 1870 until 1889 1846 until 1869 Business Unit Microscopy & Imaging
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