GB1427845A - Composite light-polarising element - Google Patents
Composite light-polarising elementInfo
- Publication number
- GB1427845A GB1427845A GB2091573A GB2091573A GB1427845A GB 1427845 A GB1427845 A GB 1427845A GB 2091573 A GB2091573 A GB 2091573A GB 2091573 A GB2091573 A GB 2091573A GB 1427845 A GB1427845 A GB 1427845A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coated
- polarising element
- layer
- polarising
- resin
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/12—Polarisers
-
- 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
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
-
- 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
- B29D11/0048—Moulds for lenses
- B29D11/00528—Consisting of two mould halves joined by an annular gasket
-
- 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
- B29D11/0073—Optical laminates
-
- 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
- B29D11/00865—Applying coatings; tinting; colouring
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
Landscapes
- Engineering & Computer Science (AREA)
- Ophthalmology & Optometry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Polarising Elements (AREA)
- Eyeglasses (AREA)
- Paints Or Removers (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
1427845 Coated optical elements POLAROID CORP 2 May 1973 [2 May 1972] 20915/ 73 Heading B2E [Also in Divisions B5, C3 and G2] A light-polarising element for use in making a composite lens is coated on both sides with a layer of cellulose nitrate which enhances adhesion of lens components which are to be moulded (see Division B5) and polymerised in situ onto each side of the polarising element and also inhibits migration of constituents between the element and the attached components. A polyvinyl alcohol polarising element having a layer of cellulose acetate butyrate bonded to either side is coated with an adhesion promoter/barrier layer of nitrocellulose containing an organic acetonate cross-linking agent and preferably another resin such as a phenolic, a polyhalogenated vinyl polymer, a polyamide, an acrylate resin, a polyester, or an epoxy. A suitable coating composition comprises nitrocellulose, titanium di(acetyl acetonate), melamine formaldehyde resin, triphenyl phosphate plasticiser, and maleic acid catalyst dissolved in methylcellulose, acetone and methanol which are evaporated after coating.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00249651A US3833289A (en) | 1970-05-28 | 1972-05-02 | Composite light-polarizing element |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1427845A true GB1427845A (en) | 1976-03-10 |
Family
ID=22944419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2091573A Expired GB1427845A (en) | 1972-05-02 | 1973-05-02 | Composite light-polarising element |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS515304B2 (en) |
AU (1) | AU471257B2 (en) |
BE (1) | BE798980A (en) |
CA (1) | CA979251A (en) |
DE (1) | DE2321885C2 (en) |
FR (1) | FR2183109B1 (en) |
GB (1) | GB1427845A (en) |
IT (1) | IT1045949B (en) |
NL (1) | NL174708C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7581832B2 (en) | 2006-02-23 | 2009-09-01 | Essilor International (Compagnie Generale D'optique) | Polarizing optical element comprising a polarizing film and method for manufacturing such element |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR8407255A (en) * | 1984-01-04 | 1985-12-24 | K Corp Of Japan | SPECIAL LENS FOR SUNGLASSES |
US6801360B2 (en) * | 2002-10-28 | 2004-10-05 | International Polarizer, Inc. | Polarized lens formed by injection/coining injection molding process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2320375A (en) * | 1939-07-18 | 1943-06-01 | American Optical Corp | Ophthalmic mounting and method of making the same |
DE1925891C3 (en) * | 1969-05-21 | 1982-01-14 | Optische Werke G. Rodenstock, 8000 München | Process for the production of multilayer, polarizing spectacle lenses from diallyl diglycol carbonate |
FR2118305A5 (en) * | 1970-12-14 | 1972-07-28 | Vergo Sa | |
DE2118906C2 (en) * | 1971-04-19 | 1982-05-06 | Polaroid Corp., 02139 Cambridge, Mass. | Polarizing, multilayer eyeglass lens |
FR2134094A1 (en) * | 1971-04-19 | 1972-12-08 | Polaroid Corp | Synthetic plastic correction lenses |
-
1973
- 1973-04-26 JP JP48048286A patent/JPS515304B2/ja not_active Expired
- 1973-04-27 FR FR7315564A patent/FR2183109B1/fr not_active Expired
- 1973-04-27 AU AU54933/73A patent/AU471257B2/en not_active Expired
- 1973-04-30 IT IT4973473A patent/IT1045949B/en active
- 1973-04-30 DE DE19732321885 patent/DE2321885C2/en not_active Expired
- 1973-05-01 CA CA170,146A patent/CA979251A/en not_active Expired
- 1973-05-02 GB GB2091573A patent/GB1427845A/en not_active Expired
- 1973-05-02 NL NL7306102A patent/NL174708C/en not_active IP Right Cessation
- 1973-05-02 BE BE130642A patent/BE798980A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7581832B2 (en) | 2006-02-23 | 2009-09-01 | Essilor International (Compagnie Generale D'optique) | Polarizing optical element comprising a polarizing film and method for manufacturing such element |
Also Published As
Publication number | Publication date |
---|---|
IT1045949B (en) | 1980-06-10 |
JPS515304B2 (en) | 1976-02-19 |
NL7306102A (en) | 1973-11-06 |
NL174708B (en) | 1984-03-01 |
FR2183109B1 (en) | 1976-09-10 |
DE2321885A1 (en) | 1973-11-15 |
FR2183109A1 (en) | 1973-12-14 |
JPS4942362A (en) | 1974-04-20 |
BE798980A (en) | 1973-11-05 |
AU471257B2 (en) | 1976-04-15 |
AU5493373A (en) | 1974-10-31 |
DE2321885C2 (en) | 1984-12-13 |
CA979251A (en) | 1975-12-09 |
NL174708C (en) | 1984-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |