Chapman and Cutler LLP
Apparatus for measuring shape of lens-frames
An apparatus for measuring a shape of lens frames capable of measuring precisely the shape of lens frames by changing a rotational speed or rotational direction of a measuring element (feeler) 216 in accordance with the shape of lens frames. The measuring element 216 contacts with V-shaped grooves (grooves for lens frames) 51 provided in lens frames LF and RF of an eyeglass frame MF. An arithmetic control circuit 270 controls variably the rotational speed or rotational direction of the measuring element 216. 
Kabushiki Kaisha Topcon
G
G02C
inventional
Yoshimasa Yasuo
Ogawa Suzuki