Objects
Lensco-Meter
OPTOMETRIC INSTRUMENTS
keratometer (part)
Lensco Precision Instrument Co.
North America: USA, Connecticut, Branford
c.1961
metal
overall (case): 30 mm x 120 mm x 95 mm
2012.17
OPTOMETRIC INSTRUMENTS
keratometer (part)
Lensco Precision Instrument Co.
North America: USA, Connecticut, Branford
c.1961
metal
overall (case): 30 mm x 120 mm x 95 mm
Two-part measuring arm with knurled thumb-screw and four precision steel ball bearings for attaching to an ophthalmometer/keratometer, in original compartmentalised plastic case with transparent hinged lid. Together with a single sheet instruction leaflet for its use to check the accuracy of an ophthalmometer, to measure inside curve of a contact lens, outside curve of a contact lens or to inspect a contact lens with a slit lamp. Also a set of conversion scales derived from Bausch & Lomb for converting dioptric values to their equivalent radii of curvature.
2012.17
Gift of Mrs Jill Evershed Martin, 2011