Year/Period |
1910-1920 |
Maker |
ZEISS |
Country |
Germany |
Signature |
Carl Zeiss / Jena [in logo] / 7423 // F / 1.8 mm n.A. 0.9 / D 0.17 |
Category |
Accessories microscopy |
Subcategory |
Optical components |
Optical 2 |
Achromatic |
Size of the box (h x w x d) |
sleeve: h 5.2 × ø 2.6 cm |
Size of the instrument (h x w x d) |
h 3.7 × ø 1.5 cm |
Donated by |
J.W. van Eijk, Zoetermeer, the Netherlands |
Inventory number |
SM 378 |
In a brass sleeve with screw cap. The sleeve is signed with the Zeiss logo, and an ‘F’.
The ‘F’ lens was manufactured in two versions, one without a correction collar (this one) and one with a correction collar (see SM 36).
The lens contains a fluorspar (calcium fluoride) lens, which makes it possible to correct the chromatic aberration of the lens better than in a normal achromatic lens. The result is that the lens is very sensitive to variations in the thickness of the cover glass. If it is not exactly the indicated 0.17 mm, the spherical aberration increases.
Microtome knives
JUNG
1900-1960
Microscope lamp
ZEISS
1920-1935
Swinging microtome
UNKNOWN
1900-1930
Microscope lamp
REICHERT
1950-1970
info@stichtinghistorischemicroscopie.nl
Visseringlaan 25
2288 ER Rijswijk
The Netherlands
RSIN: 804217361
KVK: 41182753
IBAN: NL53INGB0007728414
The Historical Microscopy Foundation is independent and non-commercial. Your support is vital to enable the Foundation to fulfil its mission and to guarantee its continuity. We are very grateful for all financial contributions, as well as donations of progress objects for the collection.
Donate