MX2020003837A - An improved method of preparing a lens blank for an operation of surfacing thereof. - Google Patents

An improved method of preparing a lens blank for an operation of surfacing thereof.

Info

Publication number
MX2020003837A
MX2020003837A MX2020003837A MX2020003837A MX2020003837A MX 2020003837 A MX2020003837 A MX 2020003837A MX 2020003837 A MX2020003837 A MX 2020003837A MX 2020003837 A MX2020003837 A MX 2020003837A MX 2020003837 A MX2020003837 A MX 2020003837A
Authority
MX
Mexico
Prior art keywords
lens
diameter
cutout
temporary
aspherical
Prior art date
Application number
MX2020003837A
Other languages
Spanish (es)
Inventor
Xavier Bultez
Sébastien Piraube
Fred Adolofo
Alain Mathieu
Jerome Moine
Original Assignee
Essilor Int
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Essilor Int filed Critical Essilor Int
Publication of MX2020003837A publication Critical patent/MX2020003837A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/005—Blocking means, chucks or the like; Alignment devices
    • B24B13/0055—Positioning of lenses; Marking of lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Lenses (AREA)

Abstract

Un método para preparar un primordio de lente para una operación adicional de tecnología de superficie digital para transformar el primordio de lente en una lente con superficie asférica para una transformación posterior en una lente que tenga una forma de lente, incluyendo la operación de tecnología de superficie digital un procesamiento del primordio de lente para que la lente con superficie asférica presente un diámetro de recorte, siendo el método puesto en práctica utilizando un módulo de procesamiento y que comprende; - basado en datos de entrada (ID) que definen la forma de la lente, definiendo un diámetro de recorte temporal (Dtemp) para que dicho diámetro de recorte temporal satisfaga un conjunto de restricciones que incluyen al menos; - una primera restricción por la cual el diámetro de recorte temporal (Dtemp) es lo suficientemente grande como para que la lente con superficie asférica que tiene dicho diámetro de recorte temporal sea adecuada para procesarse en dicha lente; - una segunda restricción por la cual el diámetro de recorte temporal es lo suficientemente grande como para que la lente con superficie asférica tenga dicho diámetro de recorte temporal para incluir una pluralidad de puntos de referencia definidos en el primordio de lente y que juntos identifiquen un centro óptico de la lente; - elegir el diámetro de recorte como una función del diámetro de recorte temporal (Dtemp), estando dicha elección del diámetro de recorte configurada de modo que, cuando una configuración de recorte escalonado está destinada a aplicarse a la operación de tecnología de superficie digital, dicho diámetro de recorte se elija entre al menos un valor discreto predeterminado (Vali).A method of preparing a lens blank for further digital surface technology operation to transform the lens blank into an aspherical surfaced lens for further transformation into a lens having a lens shape, including surface technology operation digital a processing of the lens blank so that the lens with an aspherical surface has a cutout diameter, the method being implemented using a processing module and comprising; - based on input data (ID) defining the shape of the lens, defining a temporary clipping diameter (Dtemp) so that said temporary clipping diameter satisfies a set of constraints including at least; - a first constraint whereby the temporary cutout diameter (Dtemp) is large enough that the aspherical surfaced lens having said temporary cutout diameter is suitable for processing into said lens; - a second constraint whereby the temporal cutout diameter is large enough for the aspherical-surfaced lens to have said temporal cutout diameter to include a plurality of reference points defined on the lens blank and together identify a center optical lens; - choosing the cutout diameter as a function of the temporary cutout diameter (Dtemp), said choice of cutout diameter being configured such that, when a stepped cutout configuration is intended to be applied to digital surface technology operation, said trim diameter is chosen from at least one predetermined discrete value (Vali).

MX2020003837A 2017-10-13 2018-10-08 An improved method of preparing a lens blank for an operation of surfacing thereof. MX2020003837A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17306387.6A EP3470171B1 (en) 2017-10-13 2017-10-13 An improved method of preparing a lens blank for an operation of surfacing thereof
PCT/EP2018/077270 WO2019072742A1 (en) 2017-10-13 2018-10-08 An improved method of preparing a lens blank for an operation of surfacing thereof

Publications (1)

Publication Number Publication Date
MX2020003837A true MX2020003837A (en) 2020-08-06

Family

ID=60153245

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2020003837A MX2020003837A (en) 2017-10-13 2018-10-08 An improved method of preparing a lens blank for an operation of surfacing thereof.

Country Status (6)

Country Link
US (1) US20200276684A1 (en)
EP (1) EP3470171B1 (en)
CN (1) CN111201111B (en)
MX (1) MX2020003837A (en)
PH (1) PH12020550199A1 (en)
WO (1) WO2019072742A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485771A (en) * 1991-09-27 1996-01-23 Coburn Optical Industries, Inc. Apparatus for generating ophthalmic products from blanks and a method of operating same
WO2006003939A1 (en) * 2004-06-30 2006-01-12 Hoya Corporation Method of manufacturing spectacle lens
CA2599088C (en) * 2005-02-14 2015-11-17 Essilor International(Compagnie Generale D'optique) Process for the manufacture of spectacle lenses
FR2900853B1 (en) * 2006-05-10 2009-01-23 Essilor Int METHOD AND DEVICE FOR QUENCHING A SLIDING LENS BY CUTTING THE LENS
JP2009125877A (en) * 2007-11-26 2009-06-11 Hoya Corp Lens holder and curved-surface polishing method for lens
CN103930822B (en) * 2011-11-16 2016-08-17 埃西勒国际通用光学公司 For the method determining semi-finished lens blank
FR2997330B1 (en) * 2012-10-30 2015-04-03 Essilor Int PROCESS FOR THE MANUFACTURE OF OPHTHALMIC LENSES
LU92190B1 (en) * 2013-05-06 2014-11-07 Satisloh Gmbh Multi part blocking piece

Also Published As

Publication number Publication date
WO2019072742A1 (en) 2019-04-18
CN111201111B (en) 2023-01-06
EP3470171A1 (en) 2019-04-17
PH12020550199A1 (en) 2021-03-01
EP3470171B1 (en) 2021-01-20
CN111201111A (en) 2020-05-26
US20200276684A1 (en) 2020-09-03

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