Scientific Instrument, Spherometer

Historical information

A spherometer is an instrument for the precise measurement of the radius of curvature of a sphere or a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens.

Physical description

A fixed-frame tripod with adjustable central contact screw, equipped with micrometer scale. Brass construction with steel contact points. Designed for measuring curvature of lenses. Stored in a polished timber box.

Made specially for Silberberg and Co. Ltd. Melbourne

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