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]
Farlex Partner Medical Dictionary © Farlex 2012

spherometer

(sfē-rŏm′ĕt-ĕr) [″ + metron, measure]
A device to ascertain the curvature of a surface.
Medical Dictionary, © 2009 Farlex and Partners
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References in periodicals archive ?
I used a ball spherometer to monitor the curves, but any of the standard methods described in telescope-making books would also work.
To monitor the emerging lens curves, I also constructed a three-ball spherometer with a dial indicator capable of reading to the nearest 0.01 mm.
A micrometer and spherometer lay alongside a marked-up blueprint of a telescope.
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.