Apparatus for measuring the radii of contact lenses
AssigneeOptische Werke G. Rodenstock
InventorKarl-Heinz Wilms
Life of this patent
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Abstract
An apparatus for measuring the radii of contact lenses includes a holding arrangement for mounting a contact lens to be measured, and a mirror arrangement for directing a measuring beam emitted from an optical radius-measuring device to the contact lens to be measured. The optical radius-measuring device has an optical axis which is located at different height positions during measurement of the contact lens and the mirror arrangement is movable so that the optical axis of the radius-measuring device passes through the area of the center of curvature of the contact lens surface to be measured.
Claims9
Apparatus for measuring the radii of contact lenses comprising means for mounting a contact lens to be measured, and mirror means for directing a measuring beam emitted from an optical radius-measuring means to the contact lens to be measured, the optical radius-measuring means having an optical axis which is located at different height positions during measurement of the contact lens, the mirror means being movable so that the optical axis of the radius-measuring means passes through the area of the center of curvature of the contact lens surface to be measured.
Dependencies are inferred from the claim text.