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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 rests on three legs 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.

Condition: Very Good.

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: