spherometer


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sphe·rom·e·ter

(sfē-rom'ĕ-tĕr),
An instrument to determine the curvature of a sphere or a spheric lens. See: Geneva lens measure.
[sphero- + G. metron, measure]

spherometer

(sfē-rŏm′ĕt-ĕr) [″ + metron, measure]
A device to ascertain the curvature of a surface.
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References in periodicals archive ?
Throughout the rough-grinding process, Ritchie used an 18-inch spherometer to constantly monitor the mirror's shape and focal length.
Sasian suggested that I use a spherometer to monitor progress during fine-grinding, but I found it more accurate to shine the glass with a wax pencil and use a flashlight to "search" for the center of curvature.
Tenders are invited for Supply of Set Of Spherometer Bells As Per Annexture No.