Segment height measuring device

Details Segment height measuring device Segment height measuring device

1986-03-26

1987-03-31

Stearns, Richard R.

Geometrical instruments

Gauge

Spectacle

351204, A61B 310

Patent

active

046531920

ABSTRACT:
There is disclosed herein an improved apparatus for use in accurately determining the proper position for the line of demarcation between the bifocal correction lens and other corrective lens segments to be provided in eyeglass lenses. The measuring apparatus includes an elongated indicia carrying member having provided thereon adjustable clamping members specifically designed to enable the elongated member to be attached to a wide variety of eyeglass frames for purposes of obtaining a measurement of the proper height for location of the segment line. The elongated member also includes a sliding gauge which may be moved therealong and cooperates with the indicia to provide an accurate, easily determined measurement for the position of the segment line.

REFERENCES:
patent: 1675407 (1928-07-01), Dvorine
patent: 1981438 (1934-11-01), Smith
patent: 1981439 (1934-11-01), Smith
patent: 2491312 (1949-12-01), Henry et al.
patent: 2632257 (1953-03-01), Belgard
patent: 2884702 (1959-05-01), Engelmann
patent: 3740857 (1973-06-01), Nerad
patent: 3987554 (1976-10-01), Pastore
patent: 4167067 (1979-09-01), Guiset
patent: 4252419 (1981-02-01), Padula, II et al.
patent: 4368958 (1983-01-01), Buget
patent: 4494837 (1985-01-01), Bommarito
patent: 4531297 (1985-07-01), Stoerr

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