Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Subjective type
Patent
1980-08-20
1983-04-26
Corbin, John K.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Subjective type
351227, A61B 304
Patent
active
043811434
ABSTRACT:
A lens holder having a pair of spring connected clamping members with apertures therein mountable over a lens socket of spectacle frames. The clamping members have an extent which is sufficient to completely span lens sockets and extend a distance beyond. Transverse lateral rulings on at least one of the clamping members permit gauging an aperture in a clamping member relative to a socket in a spectacle frame. In this manner, geometrical characteristics of a test lens may be measured and recorded for the purpose of making permanent lenses for a selected spectacle frame. In addition to transverse lateral rulings on a clamping member, angular rulings about an aperture in a clamping member may also be applied for determining angular orientations of a test lens.
REFERENCES:
patent: 1661967 (1928-03-01), Savoie
patent: 1949449 (1934-03-01), Broomfield
patent: 2006645 (1935-07-01), Masters
patent: 2384233 (1945-09-01), Bishop
patent: 2467343 (1949-04-01), Street
patent: 2842029 (1958-07-01), Roth
patent: 3446548 (1969-05-01), Rummel et al.
"Jannelli Clip", Signet Optical Corporation, Signet Optical Corporation Publication.
"Rodenstock Interpupillary Gauge", Rodenstock Gauge Brochure.
"Bi-Fo-Rite . . . ", Bi-Fo-Rite Brochure.
Halbert Trial Clip, Keeler, Jun. 1972.
Bovernick Rodney B.
Corbin John K.
Schneck Thomas
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