Spherometer consists of a black-painted metal measuring disc and a ruler mounter on a tripod black-painted metal base. Measurements on ruler are metric, measurements on disc are imperial.
Accession Number: 2011.ph.518
Primary Materials: metal, painted metal
“W.G. PYE & Co. LTD ENGLAND CAMBRIDGE” is embossed on disc. “858 E” is written in black marker on top.
Dimensions (cm): 6.5x5x5
Use to determine the radius of curvature of concave and convex surfaces of mirrors and lenses.
Very good condition. Some minor flaking of paint and corrosion on painted base.
Manufacturer: W.G. Pye & Company Limited
Date of Manufacture: Early to Mid-Twentieth Century
University of Toronto Physics Department.
Additional Information and References: