In addition to microscopes, the Foundation’s collection also includes other historical optical equipment such as binoculars, refractometers, magnifying glasses, spectroscopes, and polarimeters. A special part of the collection is focused on Nedoptifa/Bleeker; a Dutch company that produced such devices including microscopes during the 20th century. We have chosen to categorise optical equipment as a separate group.
The descriptions of the various devices are regularly added to as more information about them becomes available.
No results have been found.
Hemoglobin meter
REICHERT
1870-1880
Butter refractometer after Wolney
ZEISS
ca. 1891
Polarimeter tubes
1900-1950
Trial lens kit
ONBEKEND/UNKNOWN
ca. 1900
Achromatic stand magnifier
LEITZ
1925-1950
Polarimeter after Laurent
WINKEL
1928-1940
Spectroscope
ZEISS
1930-1940
Achromatic magnifier 8×
BLEEKER
1940-1955
Cytometer
BLEEKER
1940-1960
Folding hand magnifier
BLEEKER
1940-2017
Achromatic magnifier 12× and 10×
BLEEKER
1940-1947
Achromatic magnifier 12×
BLEEKER
1940-1950
Spectroscope
BLEEKER
1946-1950
Universal refractometer after Abbe
BLEEKER
1950-1955
Refractometer/saccharimeter
BLEEKER
1950-1960
Achromatic magnifier 10×
BLEEKER
1950-1960
Universal refractometer after Abbe
BLEEKER
1950-1960
Porro prism binocular 6×24
BLEEKER
ca. 1950
Porro prism binocular 6×30
BLEEKER
ca. 1950
Porro prism binocular 6×24
BLEEKER
ca. 1950
Refractometer or Saccharimeter opened
BLEEKER
1950-1960
Universal refractometer after Abbe
BLEEKER
1950-1960
Viewer cathetometer
BLEEKER
1950-1960
Porro prism binocular 6×30
BLEEKER
ca. 1950
Universal refractometer after Abbe
BLEEKER
1950-1960
Refractometers/saccharimeters
BLEEKER
1945-1965
Monochromator with adjustable filter
ZEISS
1950-1965
Porro prism binocular 7×50
BLEEKER
ca. 1953
Thread counter
BLEEKER
1955-1965
Thread counter
BLEEKER
1955-1965
Spectroscope
BLEEKER
ca. 1960