Apparatus, fixture, packing, a method for machining of...

Details Apparatus, fixture, packing, a method for machining of... Apparatus, fixture, packing, a method for machining of...

2008-01-22

2008-01-22

Mai, Huy (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Methods

C351S110000, C408S11500B

Reexamination Certificate

active

07320516

ABSTRACT:
There is described an apparatus and a fixture used in determining position and for producing assembling holes in a spectacle lens for rimless spectacles. The assembling holes are intended for receiving a U-shaped bracket which is used in fastening bridge and side bar hinge. The apparatus and fixture includes interacting guide pins and guide holes. These guide holes/pins are unambiguously disposed. The guide holes will preferably be placed symmetrically in relation to a hole center line for the lens, when this is placed in the fixation opening of the fixture with the hole center line disposed opposite to markings at the fixation opening. The assembling holes are thus placed symmetrically in relation to the marking. By such a system it is possible to make rimless spectacles that appear very accurate, without special skilled qualifications on the part of the optician to make assembling holes in the lenses.

REFERENCES:
patent: 6170950 (2001-01-01), Yoshida
patent: 6244792 (2001-06-01), Watanabe
patent: 6378181 (2002-04-01), Cargnel
patent: 6561738 (2003-05-01), Fujita et al.
patent: 19733303 (1999-02-01), None
patent: 172260 (1998-02-01), None
patent: 1238731 (2002-09-01), None
patent: 2125450 (1984-03-01), None
patent: 2345871 (2000-07-01), None

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