TW362064B - Scanning laser demolding of ophthalmic lenses - Google Patents

Scanning laser demolding of ophthalmic lenses

Info

Publication number
TW362064B
TW362064B TW086113237A TW86113237A TW362064B TW 362064 B TW362064 B TW 362064B TW 086113237 A TW086113237 A TW 086113237A TW 86113237 A TW86113237 A TW 86113237A TW 362064 B TW362064 B TW 362064B
Authority
TW
Taiwan
Prior art keywords
mold portions
mold
lens
polymer
scanning laser
Prior art date
Application number
TW086113237A
Other languages
English (en)
Chinese (zh)
Inventor
Stephen R Beaton
Denwood F Ross
Craig W Walker
Original Assignee
Johnson & Johnson Vision Prod
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 Johnson & Johnson Vision Prod filed Critical Johnson & Johnson Vision Prod
Application granted granted Critical
Publication of TW362064B publication Critical patent/TW362064B/zh

Links

Classifications

    • 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
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00211—Demoulding, e.g. separating lenses from mould halves using heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B29D11/00221—Demoulding, e.g. separating lenses from mould halves using prying means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/808—Lens mold

Landscapes

  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Laser Beam Processing (AREA)
  • Radiation-Therapy Devices (AREA)
  • Laser Surgery Devices (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
TW086113237A 1996-09-10 1997-12-19 Scanning laser demolding of ophthalmic lenses TW362064B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/709,832 US5815238A (en) 1996-09-10 1996-09-10 Scanning laser demolding of ophthalmic lenses

Publications (1)

Publication Number Publication Date
TW362064B true TW362064B (en) 1999-06-21

Family

ID=24851468

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086113237A TW362064B (en) 1996-09-10 1997-12-19 Scanning laser demolding of ophthalmic lenses

Country Status (9)

Country Link
US (1) US5815238A (https=)
EP (1) EP0850751B1 (https=)
JP (1) JP4435880B2 (https=)
AT (1) ATE212288T1 (https=)
AU (1) AU736009B2 (https=)
CA (1) CA2215063C (https=)
DE (1) DE69710038T2 (https=)
SG (1) SG72757A1 (https=)
TW (1) TW362064B (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609041B1 (en) * 1999-05-05 2003-08-19 Johnson & Johnson Vision Care, Inc. Method and system for SKU tracking and changeover
US6638451B1 (en) * 1999-08-31 2003-10-28 Novartis Ag Plastic casting molds
ATE526135T1 (de) * 2001-03-26 2011-10-15 Novartis Ag Giessform und verfahren zur herstellung von opthalmischen linsen
US6663801B2 (en) * 2001-04-06 2003-12-16 Johnson & Johnson Vision Care, Inc. Silicon carbide IR-emitter heating device and method for demolding lenses
EP2637847B1 (en) 2010-11-10 2014-07-23 Novartis AG Method for making contact lenses
DE102016122060B3 (de) * 2016-11-16 2018-03-29 Csm Maschinen Gmbh Laserpressschweißen
JP6999273B2 (ja) * 2017-02-06 2022-02-10 株式会社ニデック 染色装置及び染色方法
EP3931626B1 (en) 2019-03-01 2026-02-25 Sightglass Vision, Inc. Ophthalmic lenses for reducing myopic progression and methods of making the same
CN111231055A (zh) * 2020-01-07 2020-06-05 国网四川省电力公司映秀湾水力发电总厂 一种混流式水轮机转轮叶片三维模型的逆向反求方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809921A1 (de) * 1988-03-24 1989-10-12 Diehl Gmbh & Co Grossflaechiger hochenergie-laserspiegel und verfahren zum herstellen eines solchen spiegels
US4869745A (en) * 1989-04-24 1989-09-26 Flaming Dale G Apparatus for forming micropipette of controlled configuration by moving the point of heat application
DE4228528A1 (de) * 1991-08-29 1993-03-04 Okuma Machinery Works Ltd Verfahren und vorrichtung zur metallblechverarbeitung
US5334815A (en) * 1992-01-15 1994-08-02 Wear Guard Corp. Apparatus and method for producing a printing screen
US5269982A (en) * 1992-02-12 1993-12-14 Brotz Gregory R Process for manufacturing a shaped product
US5294379A (en) * 1992-09-18 1994-03-15 Johnson & Johnson Vision Products, Inc. Laser assisted demolding of ophthalmic lenses

Also Published As

Publication number Publication date
CA2215063A1 (en) 1998-03-10
MX9706914A (es) 1998-05-31
SG72757A1 (en) 2000-05-23
EP0850751A1 (en) 1998-07-01
EP0850751B1 (en) 2002-01-23
US5815238A (en) 1998-09-29
AU736009B2 (en) 2001-07-26
JP4435880B2 (ja) 2010-03-24
DE69710038T2 (de) 2002-07-11
ATE212288T1 (de) 2002-02-15
JPH10128772A (ja) 1998-05-19
AU3747397A (en) 1998-03-12
CA2215063C (en) 2006-08-15
DE69710038D1 (de) 2002-03-14

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees