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Compound achromatic microscope, stand K

Maker

BLEEKER

Country

The Netherlands

Signature

NEDOPTIFA / K / ZEIST-HOLLAND / No 31639

Category

Microscopes

Optical 1

Compound

Optical 2

Achromatic

Size of the box (h x b x d)

16.5 × 24.2 × 14.3 cm

Size of the microscope (h x b x d)

22 × 12 × 13.5 cm

Inventory number

SM 48

Description

In a maple box with two eyepieces and two objective lenses.
This microscope type ‘K’ was made by the firm of dr. C.E. Bleeker in Zeist, the Netherlands. Instruments by Bleeker were also sold under the name of Nedoptifa, which stands for ‘Nederlandse Optische Fabriek’ (Dutch Optical Factory).
It is a small inclinable stand of black enamelled injection molded aluminium. The diameter of the objective thread is smaller than the usual RMS thread and the eyepieces are smaller(19 mm) than the usual 23.4 mm. The tube length is 12 cm. According to a 1962 catalog this microscope did cost 225 Dutch guilders.
The design of this microscope is based upon the Zeiss E stands of around 1935. The molded horseshoe foot has two flanges between which the limb can be inclined over an angle of 90 degrees. There is a simple square stage with two spring clips. Below the stage a flat and concave mirror in a bracket, the mirror can be moved out of the optical axis by a swinging bar. There is no condenser or a stop. Adjustment is by means of rack and pinion.