CA973671A - Multiple molding of plastic optical lenses - Google Patents

Multiple molding of plastic optical lenses

Info

Publication number
CA973671A
CA973671A CA143,757A CA143757A CA973671A CA 973671 A CA973671 A CA 973671A CA 143757 A CA143757 A CA 143757A CA 973671 A CA973671 A CA 973671A
Authority
CA
Canada
Prior art keywords
plastic optical
optical lenses
multiple molding
molding
lenses
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
CA143,757A
Other versions
CA143757S (en
Inventor
Joseph Binder
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.)
Ashland Optical Corp
Original Assignee
Ashland Optical Corp
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 Ashland Optical Corp filed Critical Ashland Optical Corp
Application granted granted Critical
Publication of CA973671A publication Critical patent/CA973671A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/30—Mounting, exchanging or centering
    • B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/76—Office equipment or accessories
    • B29L2031/7602—Maps
CA143,757A 1971-06-04 1972-06-02 Multiple molding of plastic optical lenses Expired CA973671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15004071A 1971-06-04 1971-06-04

Publications (1)

Publication Number Publication Date
CA973671A true CA973671A (en) 1975-09-02

Family

ID=22532855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA143,757A Expired CA973671A (en) 1971-06-04 1972-06-02 Multiple molding of plastic optical lenses

Country Status (6)

Country Link
AT (1) AT343350B (en)
CA (1) CA973671A (en)
CH (1) CH550653A (en)
GB (1) GB1347821A (en)
IE (1) IE38112B1 (en)
IL (1) IL39580A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3089989A (en) * 1988-03-02 1989-09-07 Pilkington Visioncare Holdings Inc. Method and apparatus for molding and casting using gated dies having parametric molding surfaces

Also Published As

Publication number Publication date
IL39580A0 (en) 1972-07-26
IE38112L (en) 1972-12-04
GB1347821A (en) 1974-02-27
ATA478672A (en) 1977-09-15
CH550653A (en) 1974-06-28
AT343350B (en) 1978-05-26
IE38112B1 (en) 1978-01-04
IL39580A (en) 1975-03-13

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