GB1436481A - Laminated lens surfacing pads and a method of making same - Google Patents

Laminated lens surfacing pads and a method of making same

Info

Publication number
GB1436481A
GB1436481A GB2036474A GB2036474A GB1436481A GB 1436481 A GB1436481 A GB 1436481A GB 2036474 A GB2036474 A GB 2036474A GB 2036474 A GB2036474 A GB 2036474A GB 1436481 A GB1436481 A GB 1436481A
Authority
GB
United Kingdom
Prior art keywords
sheet
pad
film
surfacing
lens
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
GB2036474A
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.)
American Optical Corp
Original Assignee
American 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 American Optical Corp filed Critical American Optical Corp
Publication of GB1436481A publication Critical patent/GB1436481A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • 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
    • B24B13/01—Specific tools, e.g. bowl-like; Production, dressing or fastening of these tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance

Landscapes

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

Abstract

1436481 Abrasive tools AMERICAN OPTICAL CORP 8 May 1974 [14 May 1973] 20364/74 Heading B3D [Also in Division B5] A lens surfacing pad comprises a laminate of a film material 16, one face of which is bonded to a sheet 14 offoraminous material and the other face of which is bonded to a layer 18 of pressuresensitive adhesive for detachably securing the pad to a lens surfacing tool 12, the film having sufficient abrasion and puncture resistance to prevent the adhesive from penetrating on to the sheet of foraminous material when the pad is employed in a lens surfacing operation. The sheet of foraminous material may be of woven fibres, e.g. a sheet of woven wire or woven synthetic fibres or a perforated sheet of metal or plastics, exemplified materials being of soft steel wire and perforated aluminium foil. The film, which may be applied to the sheet by heat pressure may be formed of an isomer based on ethylene. The pressure-sensitive adhesive layer may be in the form of a double-faced pressuresensitive adhesive tape and is preferably protected prior to use of the pad by a strip-off covering 20, e.g. of paper or plastics film. The tool may be used in surfacing a convex or concave lens.
GB2036474A 1973-05-14 1974-05-08 Laminated lens surfacing pads and a method of making same Expired GB1436481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359825A US3921344A (en) 1973-05-14 1973-05-14 Lens surfacing pads and method of making the same

Publications (1)

Publication Number Publication Date
GB1436481A true GB1436481A (en) 1976-05-19

Family

ID=23415438

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2036474A Expired GB1436481A (en) 1973-05-14 1974-05-08 Laminated lens surfacing pads and a method of making same

Country Status (3)

Country Link
US (1) US3921344A (en)
CA (1) CA1010660A (en)
GB (1) GB1436481A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31897E (en) * 1975-03-31 1985-05-28 Minnesota Mining And Manufacturing Company Method for the alteration of a lens
US4255164A (en) * 1979-04-30 1981-03-10 Minnesota Mining And Manufacturing Company Fining sheet and method of making and using the same
US4989316A (en) * 1987-03-09 1991-02-05 Gerber Scientific Products, Inc. Method and apparatus for making prescription eyeglass lenses
US5000761A (en) * 1988-10-26 1991-03-19 Ferro Corporation Gel producing pad and improved method for surfacing and polishing lenses
CA2159797A1 (en) * 1994-10-28 1996-04-29 John H. Ko Compliant lens block and tape
US7160413B2 (en) * 2004-01-09 2007-01-09 Mipox International Corporation Layered support and method for laminating CMP pads
US8038826B2 (en) * 2007-02-01 2011-10-18 Scott Office Systems, Llc Tabbed divider making apparatus and method
US8002688B2 (en) * 2008-02-12 2011-08-23 Scott Office Systems Llc Customized tab machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2085211A (en) * 1934-12-10 1937-06-29 Briggs Mfg Co Grinding disk and method of making the same
US2286208A (en) * 1940-12-03 1942-06-16 Carborundum Co Granular coated article and its manufacture
US2752738A (en) * 1953-09-04 1956-07-03 Donald W Kent Overlay for and method of grinding lens blanks
GB855436A (en) * 1958-07-09 1960-11-30 George Davies Abrasive or polishing elements
US3144737A (en) * 1962-09-27 1964-08-18 Bausch & Lomb Aluminum foil lens grinding pad
US3225497A (en) * 1962-10-19 1965-12-28 American Optical Corp Method and apparatus for forming a lens surface
US3583111A (en) * 1966-08-22 1971-06-08 David Volk Lens grinding apparatus
US3522680A (en) * 1967-03-23 1970-08-04 George M J Sarofeen Expanded metal facing for a lens abrading tool
US3699721A (en) * 1967-08-22 1972-10-24 Itek Corp Grinding pad
GB1375571A (en) * 1971-07-27 1974-11-27

Also Published As

Publication number Publication date
USB359825I5 (en) 1975-01-28
US3921344A (en) 1975-11-25
CA1010660A (en) 1977-05-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee