CA2220371A1 - Apparatus and method for generating ultimate surfaces on ophthalmic lenses - Google Patents

Apparatus and method for generating ultimate surfaces on ophthalmic lenses

Info

Publication number
CA2220371A1
CA2220371A1 CA 2220371 CA2220371A CA2220371A1 CA 2220371 A1 CA2220371 A1 CA 2220371A1 CA 2220371 CA2220371 CA 2220371 CA 2220371 A CA2220371 A CA 2220371A CA 2220371 A1 CA2220371 A1 CA 2220371A1
Authority
CA
Canada
Prior art keywords
movable support
lens
affixed
actuator
rotary table
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2220371
Other languages
French (fr)
Other versions
CA2220371C (en
Inventor
Marc Y. Savoie
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Micro Optics Design Corp
Original Assignee
Micro Optics Design Corporation
Marc Y. Savoie
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 Micro Optics Design Corporation, Marc Y. Savoie filed Critical Micro Optics Design Corporation
Priority to CA 2220371 priority Critical patent/CA2220371C/en
Publication of CA2220371A1 publication Critical patent/CA2220371A1/en
Application granted granted Critical
Publication of CA2220371C publication Critical patent/CA2220371C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • 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
    • B24B13/06—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor grinding of lenses, the tool or work being controlled by information-carrying means, e.g. patterns, punched tapes, magnetic tapes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The apparatus comprises a base having orthogonal horizontal longitudinal axis, horizontal transversal axis and vertical axis, and a tool spindle having a motor and a lens surfacing tool mounted on a rotatable arbour of the motor. The apparatus also comprises a lens holder having a chuck for retaining an ophthalmic lens with a perimeter thereof defining a plane being substantially perpendicular to the longitudinal axis. A first linear slide is affixed to the base and has a first movable support and a first actuator for moving the first movable support along the longitudinal axis.
A second linear slide is also affixed to the base and has a second movable support supporting the lens holder and a second actuator for moving the second movable support and the lens holder along the transversal axis. A
rotary table is affixed to the first movable support and supports the tool spindle. The rotary table has a third actuator for rotating the rotary table about the vertical axis. A computer is provided for simultaneously controlling displacements of the first, second and third actuators, whereby the first, second and third actuators are operable in a compound mode for enhancing the precision of the movements of the lens surfacing tool in a direction normal to the ophthalmic lens.
CA 2220371 1997-07-09 1997-11-06 Apparatus and method for generating ultimate surfaces on ophthalmic lenses Expired - Fee Related CA2220371C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2220371 CA2220371C (en) 1997-07-09 1997-11-06 Apparatus and method for generating ultimate surfaces on ophthalmic lenses

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,210,127 1997-07-09
CA2210127 1997-07-09
CA 2220371 CA2220371C (en) 1997-07-09 1997-11-06 Apparatus and method for generating ultimate surfaces on ophthalmic lenses

Publications (2)

Publication Number Publication Date
CA2220371A1 true CA2220371A1 (en) 1999-01-09
CA2220371C CA2220371C (en) 2001-02-20

Family

ID=25679478

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2220371 Expired - Fee Related CA2220371C (en) 1997-07-09 1997-11-06 Apparatus and method for generating ultimate surfaces on ophthalmic lenses

Country Status (1)

Country Link
CA (1) CA2220371C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102729117A (en) * 2012-06-19 2012-10-17 南京中科天文仪器有限公司 Numerical control aspherical lens polisher
CN103419099A (en) * 2013-08-09 2013-12-04 昆山允可精密工业技术有限公司 Five-shaft cutter grinding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102729117A (en) * 2012-06-19 2012-10-17 南京中科天文仪器有限公司 Numerical control aspherical lens polisher
CN102729117B (en) * 2012-06-19 2015-03-25 南京中科天文仪器有限公司 Numerical control aspherical lens polisher
CN103419099A (en) * 2013-08-09 2013-12-04 昆山允可精密工业技术有限公司 Five-shaft cutter grinding machine

Also Published As

Publication number Publication date
CA2220371C (en) 2001-02-20

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Legal Events

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