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Polarizing Filter


A polarizing filter is mounted in a dial that may be rotated using a small protruding brass handle. Markings indicating the orientation of the filter are inscribed along the outside perimeter of the dial’s housing. A brass handle, protruding from the base of this element, is set in a brass stand. Its height of this handle may be adjusted by means of a set screw on the stand. The base of the stand consists is circular and has been painted black.

Accession Number:

Alternative Name: Polaroid Analyser

Primary Materials: Brass, Glass

Markings: No discernible identification marks.

Dimensions (cm):

Height = 47 cm, width of base = 16 cm, diameter of lens = 11.5


This polarizing filter was used in classroom optical demonstration experiments requiring polarized light. The filter may be removed from its stand and mounted in an optical bench.


Very Good. The black paint coating the base of the stand is peeling.

Associated Instruments:

Manufacturer: Unknown

Date of Manufacture: Late 19th century


Acquired from the Department of Physics, University of Toronto.

Additional Information and References:

Historical Notes: