FR1296592A - Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process - Google Patents

Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process

Info

Publication number
FR1296592A
FR1296592A FR856405A FR856405A FR1296592A FR 1296592 A FR1296592 A FR 1296592A FR 856405 A FR856405 A FR 856405A FR 856405 A FR856405 A FR 856405A FR 1296592 A FR1296592 A FR 1296592A
Authority
FR
France
Prior art keywords
lenses
machining
implementing
obtaining
toric surface
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.)
Expired
Application number
FR856405A
Other languages
French (fr)
Inventor
Pierre Rocher
Claude Thomas
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.)
LENTILLES OPHTALMIQUES RATIONN
Original Assignee
LENTILLES OPHTALMIQUES RATIONN
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 LENTILLES OPHTALMIQUES RATIONN filed Critical LENTILLES OPHTALMIQUES RATIONN
Priority to FR856405A priority Critical patent/FR1296592A/en
Priority to GB700962A priority patent/GB963407A/en
Application granted granted Critical
Publication of FR1296592A publication Critical patent/FR1296592A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B24B13/0025—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor for contact lenses
    • 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
    • B24B13/0043—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor the workpieces being deformed during the grinding operation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00932—Combined cutting and grinding thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/02—Artificial eyes from organic plastic material
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • B29C43/361—Moulds for making articles of definite length, i.e. discrete articles with pressing members independently movable of the parts for opening or closing the mould, e.g. movable pistons
    • B29C2043/3615—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices
    • B29C2043/3618—Forming elements, e.g. mandrels or rams or stampers or pistons or plungers or punching devices plurality of counteracting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
FR856405A 1961-03-22 1961-03-22 Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process Expired FR1296592A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR856405A FR1296592A (en) 1961-03-22 1961-03-22 Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process
GB700962A GB963407A (en) 1961-03-22 1962-02-22 Improvements in or relating to processes and apparatus for the production of toric surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR856405A FR1296592A (en) 1961-03-22 1961-03-22 Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process

Publications (1)

Publication Number Publication Date
FR1296592A true FR1296592A (en) 1962-06-22

Family

ID=8751393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856405A Expired FR1296592A (en) 1961-03-22 1961-03-22 Process for obtaining a toric surface, in particular for the machining of scleral contact lenses and corneal lenses, and device for implementing this process

Country Status (2)

Country Link
FR (1) FR1296592A (en)
GB (1) GB963407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114721165A (en) * 2022-04-20 2022-07-08 江苏鸿晨集团有限公司 Honeycomb lens for vision prevention and control of teenagers and manufacturing equipment thereof

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837125A (en) * 1973-09-04 1974-09-24 Celestron Pacific Method and system for making schmidt corrector lenses
US3837124A (en) * 1973-09-26 1974-09-24 Celestron Pacific Method for making replica contour block masters for producing schmidt corrector plates
FR2329427A1 (en) * 1975-10-30 1977-05-27 Essilor Int PROCESS FOR THE REALIZATION OF AN OPHTHALMIC LENS WITH PROGRESSIVELY VARIABLE FOCAL POWER, AND SEMI-FINISHED PALET FORMING AN INTERMEDIATE PRODUCT IN THIS PROCESS
US4580882A (en) * 1983-04-21 1986-04-08 Benjamin Nuchman Continuously variable contact lens
US4900482A (en) * 1986-07-29 1990-02-13 Thomas Penrhyn F Method and apparatus for buckling contact lenses
US4749530A (en) * 1986-11-12 1988-06-07 Kunzler Wilhelm F Mold for and method of making contact and intraocular lenses
DE59309613D1 (en) * 1993-12-06 1999-07-01 Peter Hoefer Process for the production of aspherical, in particular toric, contact lenses

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114721165A (en) * 2022-04-20 2022-07-08 江苏鸿晨集团有限公司 Honeycomb lens for vision prevention and control of teenagers and manufacturing equipment thereof
CN114721165B (en) * 2022-04-20 2023-12-05 江苏鸿晨集团有限公司 Teenager's eyesight prevents accuse honeycomb lens and manufacturing equipment thereof

Also Published As

Publication number Publication date
GB963407A (en) 1964-07-08

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