CA1119763A - Methode de demoulage de verres ophtalmiques - Google Patents

Methode de demoulage de verres ophtalmiques

Info

Publication number: CA1119763A
Authority: CA; Canada
Prior art keywords: mold; lens; optical surface; solid; container
Prior art date: 1978-02-07
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

CA000320134A

Other languages

English (en)

Inventor

Charles W. Neefe

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.)

Individual

Original Assignee

Individual

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.)

1978-02-07

Filing date

1979-01-23

Publication date

1982-03-16

1978-02-07 Priority claimed from US05/875,857 external-priority patent/US4155962A/en

1979-01-23 Application filed by Individual filed Critical Individual

1982-03-16 Application granted granted Critical

1982-03-16 Publication of CA1119763A publication Critical patent/CA1119763A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 11
230000003287 optical effect Effects 0.000 claims abstract description 36
239000000463 material Substances 0.000 claims abstract description 22
239000000178 monomer Substances 0.000 claims abstract description 14
238000005520 cutting process Methods 0.000 claims abstract description 13
239000007787 solid Substances 0.000 claims abstract description 12
238000005498 polishing Methods 0.000 claims abstract description 10
238000005266 casting Methods 0.000 claims abstract description 8
239000007788 liquid Substances 0.000 claims abstract description 7
230000000379 polymerizing effect Effects 0.000 claims abstract description 4
238000000465 moulding Methods 0.000 claims description 10
239000012260 resinous material Substances 0.000 claims description 5
239000000853 adhesive Substances 0.000 claims description 4
230000001070 adhesive effect Effects 0.000 claims description 4
238000003825 pressing Methods 0.000 claims description 4
239000004033 plastic Substances 0.000 abstract description 6
229920003023 plastic Polymers 0.000 abstract description 6
238000004519 manufacturing process Methods 0.000 abstract description 3
230000000694 effects Effects 0.000 abstract 1
238000000748 compression moulding Methods 0.000 description 3
239000011521 glass Substances 0.000 description 3
238000001746 injection moulding Methods 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
229910000831 Steel Inorganic materials 0.000 description 2
239000003795 chemical substances by application Substances 0.000 description 2
229940090044 injection Drugs 0.000 description 2
239000007924 injection Substances 0.000 description 2
239000012778 molding material Substances 0.000 description 2
-1 polyethylene Polymers 0.000 description 2
230000033458 reproduction Effects 0.000 description 2
239000002904 solvent Substances 0.000 description 2
239000010959 steel Substances 0.000 description 2
239000004677 Nylon Substances 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004642 Polyimide Substances 0.000 description 1
239000004743 Polypropylene Substances 0.000 description 1
208000036366 Sensation of pressure Diseases 0.000 description 1
239000003054 catalyst Substances 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
230000006835 compression Effects 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
238000005259 measurement Methods 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
229920001778 nylon Polymers 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
229920000515 polycarbonate Polymers 0.000 description 1
239000004417 polycarbonate Substances 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
229920001721 polyimide Polymers 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
229920000306 polymethylpentene Polymers 0.000 description 1
239000011116 polymethylpentene Substances 0.000 description 1
229920001155 polypropylene Polymers 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000011347 resin Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
239000006188 syrup Substances 0.000 description 1
235000020357 syrup Nutrition 0.000 description 1
229920001187 thermosetting polymer Polymers 0.000 description 1

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
- B29D11/00932—Combined cutting and grinding thereof
- B29D11/00942—Combined cutting and grinding thereof where the lens material is mounted in a support for mounting onto a cutting device, e.g. a lathe, and where the support is of machinable material, e.g. plastics

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Manufacturing & Machinery (AREA)
Ophthalmology & Optometry (AREA)
Mechanical Engineering (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Moulds For Moulding Plastics Or The Like (AREA)

CA000320134A 1978-02-07 1979-01-23 Methode de demoulage de verres ophtalmiques Expired CA1119763A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/875,857 US4155962A (en)	1977-05-25	1978-02-07	Method of removing molded lenses from the mold
US875,857		1992-04-29

Publications (1)

Publication Number	Publication Date
CA1119763A true CA1119763A (fr)	1982-03-16

Family

ID=25366480

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000320134A Expired CA1119763A (fr)	1978-02-07	1979-01-23	Methode de demoulage de verres ophtalmiques

Country Status (2)

Country	Link
CA (1)	CA1119763A (fr)
GB (1)	GB2014896B (fr)

1979
- 1979-01-11 GB GB7901070A patent/GB2014896B/en not_active Expired
- 1979-01-23 CA CA000320134A patent/CA1119763A/fr not_active Expired

Also Published As

Publication number	Publication date
GB2014896B (en)	1982-05-19
GB2014896A (en)	1979-09-05

Similar Documents

Publication	Publication Date	Title
US4155962A (en)	1979-05-22	Method of removing molded lenses from the mold
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US4188353A (en)	1980-02-12	Method of making aspheric lenses
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EP1245372B1 (fr)	2011-09-28	Moule et procédé pour la fabrication de lentilles opthalmiques
US4247492A (en)	1981-01-27	Method of controlling the adhesion of cast lenses to the mold
US20180169981A1 (en)	2018-06-21	Method for producing contact lenses
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Legal Events

Date	Code	Title	Description
1999-03-16	MKEX	Expiry