US 12,138,744 B2
Methods and systems for producing ophthalmic lenses background
Sébastien Piraube, Dallas, TX (US); Bruce Taylor, Dallas, TX (US); Brad Gelb, Dallas, TX (US); Mark Kaluza, Dallas, TX (US); Peter Hones, Dallas, TX (US); and Fred Adolfo, Dallas, TX (US)
Assigned to Essilor International, Charenton-le-pont (FR)
Appl. No. 16/760,152
Filed by Essilor International, Charenton-le-pont (FR)
PCT Filed Nov. 7, 2018, PCT No. PCT/EP2018/080514
§ 371(c)(1), (2) Date Apr. 29, 2020,
PCT Pub. No. WO2019/092045, PCT Pub. Date May 16, 2019.
Claims priority of application No. 17306548 (EP), filed on Nov. 8, 2017.
Prior Publication US 2020/0338685 A1, Oct. 29, 2020
Int. Cl. B24B 9/14 (2006.01); B24B 13/00 (2006.01); B24B 13/06 (2006.01); G02C 7/06 (2006.01); G05B 19/042 (2006.01)
CPC B24B 9/148 (2013.01) [B24B 13/0012 (2013.01); B24B 13/06 (2013.01); G05B 19/042 (2013.01); G02C 7/061 (2013.01); G05B 2219/2627 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a system for use in producing an ophthalmic lens, the method comprising:
identifying, by at least one processor, a plurality of zones within a spatial representation of a lens blank, the zones being identified relative to an ophthalmic lens to be produced from the lens blank,
the lens including:
a front face,
a back face, and
an edge that connects the front face and the back face,
and the zones including, for each of at least one of the front face and the back face of the lens:
an interior zone bounded by an interior portion of the face,
a peripheral zone bounded by a periphery of the face that surrounds the interior portion of the face, and
a waste zone that is bounded by neither the front face nor the back face of the lens,
wherein, for each of the plurality of zones, identifying the plurality of zones comprises at least one of:
identifying at least one supported zone that overlies a blocking material that supports the lens blank during production of the lens, and
identifying at least one optically-useful zone of the lens, and
identifying at least one zone that overlies and underlies a component of the lens, and
identifying at least one optically-sensitive zone; and
selecting, by the at least one processor, for each of the zones, parameters for producing the lens, the parameters including:
an implement for removing material from the lens blank, and;
a rotational speed of the implement relative to the lens blank, and/or
a translational speed of the implement relative to the lens blank, and/or
a depth of cut of the implement into the lens blank,
wherein the parameters for at least one first one of the zones differ from the parameters of at least one different second one of the zones; and
producing the lens by removing material from the lens blank according to the parameters of each of the plurality of zones.