TWI570472B - 芳香族聚碳酸酯製偏光透鏡 - Google Patents
芳香族聚碳酸酯製偏光透鏡 Download PDFInfo
- Publication number
- TWI570472B TWI570472B TW101135859A TW101135859A TWI570472B TW I570472 B TWI570472 B TW I570472B TW 101135859 A TW101135859 A TW 101135859A TW 101135859 A TW101135859 A TW 101135859A TW I570472 B TWI570472 B TW I570472B
- Authority
- TW
- Taiwan
- Prior art keywords
- aromatic polycarbonate
- polarizing
- film
- lens
- sheet
- Prior art date
Links
- 229920000515 polycarbonate Polymers 0.000 title claims description 110
- 239000004417 polycarbonate Substances 0.000 title claims description 110
- 125000003118 aryl group Chemical group 0.000 title claims description 98
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 41
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 41
- 238000005452 bending Methods 0.000 claims description 29
- 238000004043 dyeing Methods 0.000 claims description 22
- 239000012790 adhesive layer Substances 0.000 claims description 11
- 239000010408 film Substances 0.000 description 117
- 239000000975 dye Substances 0.000 description 48
- 238000002834 transmittance Methods 0.000 description 29
- 238000000034 method Methods 0.000 description 21
- 229920005989 resin Polymers 0.000 description 16
- 239000011347 resin Substances 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 230000009477 glass transition Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 12
- 239000004327 boric acid Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 12
- 150000002736 metal compounds Chemical class 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000002835 absorbance Methods 0.000 description 6
- 238000007654 immersion Methods 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 208000003464 asthenopia Diseases 0.000 description 5
- 238000004040 coloring Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000000982 direct dye Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229940078494 nickel acetate Drugs 0.000 description 3
- -1 polyethylene formaldehyde Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- ZFYIQPIHXRFFCZ-QMMMGPOBSA-N (2s)-2-(cyclohexylamino)butanedioic acid Chemical compound OC(=O)C[C@@H](C(O)=O)NC1CCCCC1 ZFYIQPIHXRFFCZ-QMMMGPOBSA-N 0.000 description 1
- JIPBPJZISZCBJQ-UHFFFAOYSA-N 1-[(2-methylpropan-2-yl)oxycarbonyl]-3-(pyridin-4-ylmethyl)piperidine-3-carboxylic acid Chemical compound C1N(C(=O)OC(C)(C)C)CCCC1(C(O)=O)CC1=CC=NC=C1 JIPBPJZISZCBJQ-UHFFFAOYSA-N 0.000 description 1
- RXWOHFUULDINMC-UHFFFAOYSA-N 2-(3-nitrothiophen-2-yl)acetic acid Chemical compound OC(=O)CC=1SC=CC=1[N+]([O-])=O RXWOHFUULDINMC-UHFFFAOYSA-N 0.000 description 1
- UGNSMKDDFAUGFT-UHFFFAOYSA-N 4,4-dimethyl-2-phenyl-5h-1,3-oxazole Chemical compound CC1(C)COC(C=2C=CC=CC=2)=N1 UGNSMKDDFAUGFT-UHFFFAOYSA-N 0.000 description 1
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 238000001479 atomic absorption spectroscopy Methods 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- UFUQRRYHIHJMPB-UHFFFAOYSA-L chembl3182005 Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC2=CC(NC(=O)C=3C=CC=CC=3)=CC=C2C(O)=C1N=NC(C=C1)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 UFUQRRYHIHJMPB-UHFFFAOYSA-L 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- GVHCUJZTWMCYJM-UHFFFAOYSA-N chromium(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GVHCUJZTWMCYJM-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229940011182 cobalt acetate Drugs 0.000 description 1
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 1
- MEYVLGVRTYSQHI-UHFFFAOYSA-L cobalt(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Co+2].[O-]S([O-])(=O)=O MEYVLGVRTYSQHI-UHFFFAOYSA-L 0.000 description 1
- QAHREYKOYSIQPH-UHFFFAOYSA-L cobalt(II) acetate Chemical compound [Co+2].CC([O-])=O.CC([O-])=O QAHREYKOYSIQPH-UHFFFAOYSA-L 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate trihydrate Substances [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- CESXSDZNZGSWSP-UHFFFAOYSA-L manganese(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].CC([O-])=O.CC([O-])=O CESXSDZNZGSWSP-UHFFFAOYSA-L 0.000 description 1
- ONJSLAKTVIZUQS-UHFFFAOYSA-K manganese(3+);triacetate;dihydrate Chemical compound O.O.[Mn+3].CC([O-])=O.CC([O-])=O.CC([O-])=O ONJSLAKTVIZUQS-UHFFFAOYSA-K 0.000 description 1
- SCVOEYLBXCPATR-UHFFFAOYSA-L manganese(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Mn+2].[O-]S([O-])(=O)=O SCVOEYLBXCPATR-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- RRIWRJBSCGCBID-UHFFFAOYSA-L nickel sulfate hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-]S([O-])(=O)=O RRIWRJBSCGCBID-UHFFFAOYSA-L 0.000 description 1
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004246 zinc acetate Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
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
-
- 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
- B29D11/00634—Production of filters
- B29D11/00644—Production of filters polarizing
-
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- 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
-
- 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
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
-
- 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
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/42—Polarizing, birefringent, filtering
-
- 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
- B32B2307/558—Impact strength, toughness
-
- 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
- B32B2551/00—Optical elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
- C08J5/124—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives using adhesives based on a macromolecular component
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Health & Medical Sciences (AREA)
- Polarising Elements (AREA)
- Chemical & Material Sciences (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Description
本發明係關於將偏光薄片彎曲加工為曲面形狀之偏光透鏡,或是在將偏光薄片彎曲加工為曲面形狀後,將芳香族聚碳酸酯射出於一方的面而成形之芳香族聚碳酸酯製偏光透鏡。
聚碳酸酯製的偏光薄片,由於耐衝擊性優異且為輕量,故以液晶顯示器為首,被使用在建築物的窗或汽車的天窗,或是海洋運動、冬季運動、釣魚等所使用之太陽眼鏡或護目鏡。
透過黏著層將芳香族聚碳酸酯薄片貼合於將聚乙烯醇薄膜拉伸並以雙色性色素染色之偏光薄膜的雙面以作為保護層之偏光薄片(以下記載為「芳香族聚碳酸酯偏光薄片」),其耐衝擊性特別優異,且兼具高耐熱性,故被使用在施以彎曲加工或射出成形所得之太陽眼鏡或護目鏡用的偏光透鏡。
然而,芳香族聚碳酸酯,由於光彈性常數大,在彎曲加工為太陽眼鏡或護目鏡般之球面或非球面的面形狀時,容易因阻滯而產生著色干擾條紋,該著色干擾條紋乃存在著損及外觀,以及引起眼睛疲勞等問題。
此外,在將芳香族聚碳酸酯偏光薄片彎曲加工為球面或非球面的面形狀之偏光透鏡中,由於芳香族聚碳酸酯偏
光薄片的厚度不均而產生像畸變,亦存在著損及外觀,以及引起眼睛疲勞等問題。
關於施以彎曲加工時所產生之阻滯,為人所知者有一種藉由對保護層所使用之芳香族聚碳酸酯預先施以拉伸處理來產生較大阻滯,以使著色干擾條紋不被看見之芳香族聚碳酸酯偏光薄片(以下記載為「拉伸聚碳酸酯偏光薄片」)(專利文獻1),在偏光透鏡中,此係使用在外觀和耐眼睛疲勞性優異之產品。
另一方面,以較對前述拉伸聚碳酸酯偏光薄片施以彎曲加工所形成之偏光透鏡更進一步提升耐衝擊性,或是形成具有焦點折射力之矯正用透鏡者為目的,為人所知者有一種將彎曲加工為球面或非球面的面形狀之拉伸聚碳酸酯偏光薄片嵌入於模具內,並將芳香族聚碳酸酯射出而成形之偏光透鏡(以下記載為「芳香族聚碳酸酯偏光透鏡」)(專利文獻2、3)。
芳香族聚碳酸酯偏光透鏡,由於將芳香族聚碳酸酯射出於模具內來充填,所以亦具有嵌入之拉伸聚碳酸酯薄片不會產生厚度不均之優點,即使在不具有焦點折射力之透鏡中,亦可使用在耐衝擊性、外觀和耐眼睛疲勞性特別優異之產品。
如芳香族聚碳酸酯偏光透鏡般之將熱硬化性樹脂或熱可塑性樹脂充填於模具內所製得之透鏡中,藉由適當地設定雙面各面之模具的表面形狀與雙面的間隔,可自由地設定成形後之透鏡的雙面各面的形狀與厚度,所以能夠以使
成形後之透鏡的焦點折射力、稜鏡折射力、及像畸變成為期望值之方式,根據光學設計來設定模具的表面形狀與雙面的間隔。
成形後之透鏡的表面形狀與成形時所接觸之模具的表面形狀,較多情形為同一形狀,但在對透鏡的表面形狀要求極高精度時,為了補償在使充填於模具內之熱硬化性樹脂或熱可塑性樹脂固化時所產生之體積收縮所造成之透鏡厚度的減少或表面形狀的變化,有時會對雙面各面之模具的表面形狀與雙面的間隔適當地進行微調。
於如此形成之芳香族聚碳酸酯偏光透鏡的表面上,可適當地形成硬塗膜、抗反射膜等,接著藉由透鏡加工、開孔、螺絲鎖緊等固定在鏡框而形成太陽眼鏡或護目鏡。
在將芳香族聚碳酸酯偏光薄片彎曲加工為球面或非球面的面形狀之偏光透鏡,或是芳香族聚碳酸酯偏光透鏡中,不僅是以降低觀看玻璃面或水面等時之眩目性者為目的而濾除水平方向的偏光,並且以進一步提升觀看性或提升創意性者為目的,以成為期望的色調和穿透率之方式,而使用著色成例如灰色或棕色等之芳香族聚碳酸酯偏光薄片。
偏光透鏡中,為了提高偏光度,係以成為使入射於偏光透鏡之光在水平方向上的偏光成分幾乎被吸收之濃度之方式,來調整染著於聚乙烯醇薄膜之雙色性色素的量,但當增加雙色性色素染著於聚乙烯醇薄膜之染著量時,入射於偏光透鏡之光在垂直方向上的偏光成分亦被吸收許多。
此外,染著於聚乙烯醇薄膜之雙色性色素,不僅為單色,亦使用數種色彩之雙色性色素。此時,藉由以各色來改變雙色性色素染著於聚乙烯醇薄膜之染著量,可得到期望的色調和穿透率之偏光透鏡。
此外,使用將染料溶解於黏著層或保護層的芳香族聚碳酸酯薄片者,或是與前述方法併用,亦可調整芳香族聚碳酸酯偏光薄片的色調和穿透率。
[專利文獻1]日本特開平03-39903號公報
[專利文獻2]日本特開平08-52817號公報
[專利文獻3]日本特開平08-313701號公報
如前述般,將芳香族聚碳酸酯偏光薄片彎曲加工為球面或非球面的面形狀,或是將彎曲加工後之芳香族聚碳酸酯偏光薄片,進一步嵌入於模具內並將芳香族聚碳酸酯射出,可得到耐衝擊性、外觀和耐眼睛疲勞性優異之偏光透鏡。
然而,在將芳香族聚碳酸酯偏光薄片彎曲加工為球面或非球面的面形狀之芳香族聚碳酸酯偏光透鏡,或是進一步射出成形後之芳香族聚碳酸酯偏光透鏡中,在偏光透鏡
的成形前後,芳香族聚碳酸酯偏光薄片的色調和穿透率產生較大變化,而有產品間的差距變大之問題。
藉由之後的探討,可得知在藉由射出成形使芳香族聚碳酸酯偏光透鏡成形時,由於一邊在模具內使彎曲加工後之芳香族聚碳酸酯偏光薄片冷卻一邊射出成形,所以可減少芳香族聚碳酸酯偏光薄片的色調和穿透率之變化,而實質上不會產生變化。
然而,在將芳香族聚碳酸酯偏光薄片彎曲加工為球面或非球面的面形狀之偏光透鏡,或是芳香族聚碳酸酯偏光透鏡中,可得知在施以彎曲加工時,由於被加熱至偏光薄片所使用之芳香族聚碳酸酯的玻璃轉移溫度前後的溫度,使得芳香族聚碳酸酯偏光薄片的色調和穿透率產生較大變化,而有產品間的差距變大之問題。
尤其是染料濃度高且穿透率低之芳香族聚碳酸酯偏光透鏡,與染料濃度低且穿透率高之芳香族聚碳酸酯偏光透鏡相比,相對於成形前之芳香族聚碳酸酯偏光薄片的色調和穿透率而言,乃具有成形後之色調和穿透率產生較大變化之問題。
再者,當成形前後之色調和穿透率的變化大時,色調或穿透率之變化量會變得不一定,會有在成形後的產品間,存在著色調和穿透率的差距之問題。
本發明是一種偏光透鏡,其係將聚乙烯醇薄膜拉伸並
以雙色性色素染色,透過黏著層將芳香族聚碳酸酯薄片貼合於雙面,並彎曲為球面或非球面之偏光透鏡,其特徵為:染入雙色性色素之區域,為從聚乙烯醇薄膜的表面至聚乙烯醇薄膜之厚度的4分之1以內之區域,在聚乙烯醇薄膜之厚度方向上的中心部未以雙色性色素染色。
此外,本發明是一種偏光透鏡,其係將聚乙烯醇薄膜拉伸並以雙色性色素染色,透過黏著層將芳香族聚碳酸酯薄片貼合於雙面,彎曲為球面或非球面,並將芳香族聚碳酸酯射出於該偏光薄片之一方的面而形成之偏光透鏡,其特徵為:從聚乙烯醇薄膜的表面染入雙色性色素之區域,為聚乙烯醇薄膜之厚度的4分之1以內,在聚乙烯醇薄膜之厚度方向上的中心部未以雙色性色素染色。
藉由本發明,可穩定地提供在色調和穿透率中,偏光透鏡於成形前後的變化小且產品間的差距少之芳香族聚碳酸酯偏光透鏡。
以下說明本發明之芳香族聚碳酸酯偏光透鏡。
首先使成為偏光薄膜的基材之樹脂薄膜在水中膨潤後,一邊在單向上拉伸一邊含浸於含有雙色性色素等染料之染色液中,藉此在配向之狀態下使雙色性色素分散於基材樹脂中,而得到賦予偏光性之偏光薄膜。
此時所使用之成為偏光薄膜的基材之樹脂,係使用聚乙烯醇類,該聚乙烯醇類,較佳為聚乙烯醇(以下記載為「PVA」)、殘留有微量之PVA的乙酸酯結構者以及PVA衍生物或類似物之聚乙烯甲醛、聚乙烯縮醛、乙烯-乙酸乙烯酯共聚物皂化物等,特佳為PVA。
再者,關於PVA薄膜的分子量,從拉伸性及薄膜強度之觀點來看,較佳為重量平均分子量50,000至350,000者,特佳為重量平均分子量150,000至300,000者。將PVA薄膜拉伸時的倍率,從拉伸後的雙色比及薄膜強度之觀點來看,較佳為2~8倍,特佳為3~5倍。拉伸後之PVA薄膜的厚度並無特別限制,過薄時容易斷裂,過厚時光穿透率會降低,故較佳約為20~50μm。
此外,此時所使用之染料,從對PVA薄膜的染色性及耐熱性之觀點來看,較佳是由具有磺酸基之偶氮色素所構成之直接染料,並以使偏光薄膜可得到期望色調和穿透率之濃度之方式,使各色的直接染料溶解或分散於染色液中。染色液除了直接染料之外,亦可適當地添加氯化鈉或硫酸鈉等之無機鹽作為染色輔助劑。
本發明者們係發現到:由於從成為偏光薄膜的基材之樹脂薄膜的表面染入染料之區域深度的不同,而在製造芳香族聚碳酸酯偏光薄片時,以不會在偏光薄膜中產生龜裂之方式一邊維持加工性一邊施以彎曲加工時之色調和穿透率的變化有所不同,當從成為偏光薄膜的基材之樹脂薄膜的表面染入染料之區域愈深,以不會在偏光薄膜中產生龜
裂之方式一邊維持加工性一邊施以彎曲加工時之色調和穿透率的變化愈大。
亦即,本發明者們係發現到:若從成為偏光薄膜的基材之樹脂薄膜的表面染入染料之區域較淺,則以不會在偏光薄膜中產生龜裂之方式一邊維持加工性一邊施以彎曲加工時之色調和穿透率的變化愈小,尤其在從成為偏光薄膜的基材之樹脂薄膜的表面染入染料之區域為樹脂薄膜之厚度的4分之1以內時,以不會在偏光薄膜中產生龜裂之方式一邊維持加工性一邊施以彎曲加工時之色調和穿透率的變化會變小。
從樹脂薄膜的表面染入染料之區域深度,可藉由染色液的溫度與浸漬時間來改變。
染色液的溫度,過高時,成為偏光薄膜的基材之樹脂薄膜會熔解,過低時,染入染料之速度過度降低,使染色花費更長時間而使生產性降低,或是過於接近室溫時,難以進行溫度控制,所以在PVA薄膜中,較佳為20℃至70℃,特佳為30℃至45℃。
浸漬時間,係以使從成為偏光薄膜的基材之樹脂薄膜的表面染入染料之區域的深度成為期望深度之方式來選擇時間。
偏光薄膜,當進一步藉由金屬化合物及硼酸來進行處理時,可具有優異的耐熱性及耐溶劑性,故較佳。
具體而言,可使用將在雙色性色素溶液中被染色之前述偏光薄膜,浸漬在金屬化合物及硼酸的混合溶液中或是
浸漬後進行拉伸之方法;或是將在雙色性色素溶液中被染色及拉伸後之前述偏光薄膜,浸漬在金屬化合物及硼酸的混合溶液之方法來處理。
金屬化合物,可為屬於第4週期、第5週期、第6週期中的任一週期之過渡金屬。該金屬化合物,係存在有已確認到前述耐熱性及耐溶劑性效果者,從價格面來看,較佳為鉻、錳、鈷、鎳、銅、鋅等之第4週期過渡金屬的乙酸鹽、硝酸鹽、硫酸鹽等之金屬鹽。此等當中,鎳、錳、鈷、鋅及銅的化合物為便宜且前述效果優異,故更佳。
該更具體的例子,例如可列舉出乙酸錳(II)四水合物、乙酸錳(III)二水合物、硝酸錳(II)六水合物、硫酸錳(II)五水合物、乙酸鈷(II)四水合物、硝酸鈷(II)六水合物、硫酸鈷(II)七水合物、乙酸鎳(II)四水合物、硝酸鎳(II)六水合物、硫酸鎳(II)六水合物、乙酸鋅(II)、硫酸鋅(II)、硝酸鉻(III)九水合物、乙酸銅(II)一水合物、硝酸銅(II)三水合物、硫酸銅(II)五水合物等。此等金屬化合物,可單獨使用任一種或是組合複數種來使用。
金屬化合物及硼酸於前述偏光薄膜中的含有率,從對前述偏光薄膜賦予耐熱性及耐溶劑性之觀點來看,偏光薄膜每1g,金屬化合物中以金屬計較佳係含有0.2~20mg,更佳含有1~5mg。硼酸的含有率,以硼計較佳係含有0.3~30mg,更佳含有0.5~10mg。
處理中所使用之處理液的組成,係設定為滿足上述的
含有率,一般而言,金屬化合物的濃度較佳為0.5~30g/L,硼酸的濃度較佳為2~20g/L。偏光薄膜中所含有之金屬化合物及硼酸的含有率的分析,可藉由原子吸光分析法來進行。
依據金屬化合物及硼酸之浸漬步驟中的浸漬溫度,過高時,成為偏光薄膜的基材之樹脂薄膜會熔解,過低時,過於接近室溫而難以進行溫度控制,所以較佳為20℃至70℃,特佳為30℃至45℃。此外,依據金屬化合物及硼酸之浸漬步驟中的浸漬時間,較佳為0.5~15分鐘。浸漬後之加熱步驟的條件,係在70℃以上,較佳為90~120℃的溫度中,加熱1~120分鐘,較佳為3~40分鐘。
接著透過黏著層,將由芳香族聚碳酸酯薄片所構成之保護層貼附於偏光薄膜的雙面。此時所使用之芳香族聚碳酸酯薄片的樹脂材料,從薄膜強度、耐熱性、耐久性或彎曲加工性之觀點來看,較佳係以一般所知的方法,從以2,2-雙(4-羥苯基)烷和2,2-雙(4-羥基-3,5-二鹵化苯基)烷為代表之雙酚化合物所製得之聚合物,該聚合物骨架中可含有來自脂肪酸二醇之結構單位或具有酯鍵之結構單位,特佳是從2,2-雙(4-羥苯基)丙烷所衍生之芳香族聚碳酸酯。
再者,關於芳香族聚碳酸酯薄片的分子量,從薄片本身的成形之觀點來看,以黏度平均分子量計較佳為12,000~40,000,從薄膜強度、耐熱性、耐久性或彎曲加工性之觀點來看,特佳20,000~35,000。此外,關於芳香族聚碳
酸酯薄片的阻滯值,從抑制著色干擾條紋之觀點來看,下限為2000nm以上,上限並無特別限定,但從薄膜製造面來看,較佳為20000nm以下,特佳為4000nm以上20000nm以下。阻滯值較高者,不易產生著色干擾條紋,但相反的,阻滯值較高者,會有表面形狀的精度低之缺點。
藉由將該阻滯值較高之芳香族聚碳酸酯薄片使用在偏光薄膜的光入射側,亦即人眼的相反側,可不易產生著色干擾條紋。
用以將芳香族聚碳酸酯薄片貼合於偏光薄膜的雙面之黏著劑,可使用丙烯酸樹脂系材料、胺甲酸乙酯樹脂系材料、聚酯樹脂系材料、三聚氰胺樹脂系材料、環氧樹脂系材料、聚矽氧烷樹脂系材料等,尤其從黏著體本身或黏著時的透明性和與芳香族聚碳酸酯薄片之黏著性之觀點來看,較佳是由為胺甲酸乙酯樹脂系材料之聚胺甲酸酯預聚物與硬化劑所構成之雙液型熱硬化性胺甲酸乙酯樹脂。如此可得芳香族聚碳酸酯偏光薄片。
本發明之芳香族聚碳酸酯偏光透鏡所使用之芳香族聚碳酸酯偏光薄片,並不限於前述芳香族聚碳酸酯偏光薄片,在將偏光薄膜與保護層的芳香族聚碳酸酯黏著之黏著劑中,亦可採用使用溶解有調光染料之黏著劑所製作之兼具調光功能之芳香族聚碳酸酯偏光薄片。如此,只要是將對偏光薄膜的保護層所使用之芳香族聚碳酸酯偏光薄片預先施以拉伸處理以產生較大阻滯之拉伸聚碳酸酯偏光薄
片,彎曲加工為球面或非球面的面形狀,嵌入於模具內並將芳香族聚碳酸酯射出而成形之偏光透鏡,即可得到同樣效果。
接著對拉伸聚碳酸酯偏光薄片施以彎曲加工。
關於拉伸聚碳酸酯偏光薄片的彎曲加工條件,並無特別限制,但必須以沿著射出成形所使用之模具的表面之方式來彎曲。此外,由於偏光薄膜在彎曲加工中容易沿著拉伸方向產生龜裂,亦即容易產生膜破裂,所以從該點來看,拉伸聚碳酸酯偏光薄片之彎曲加工中的模具溫度,較佳為拉伸聚碳酸酯偏光薄片所使用之芳香族聚碳酸酯的玻璃轉移溫度前後的溫度。此外,藉由預熱處理進行彎曲加工不久前之拉伸聚碳酸酯偏光薄片的溫度,較佳係較芳香族聚碳酸酯的玻璃轉移溫度更低50℃以上且為未達玻璃轉移溫度之溫度,特佳係較玻璃轉移溫度更低40℃以上且為未達低於玻璃轉移溫度5℃之溫度。
接著可將芳香族聚碳酸酯射出至拉伸聚碳酸酯偏光薄片。
關於射出成形的加工條件,並無特別限制,但必須是外觀優異,從該點來看,模具溫度較佳係較拉伸聚碳酸酯偏光薄片所使用之芳香族聚碳酸酯的玻璃轉移溫度更低50℃以上且為未達玻璃轉移溫度之溫度,特佳係較玻璃轉移溫度更低40℃以上且為未達低於玻璃轉移溫度15℃之溫度。
接著可施以硬塗膜處理。
關於硬塗膜的材質和加工條件,並無特別限制,但相對於外觀或底層之芳香族聚碳酸酯或是接續塗佈之鏡面塗膜或抗反射塗膜等之無機層,該緊密性需優異,從該點來看,燒結溫度較佳係較拉伸聚碳酸酯偏光薄片所使用之芳香族聚碳酸酯的玻璃轉移溫度更低50℃以上且為未達玻璃轉移溫度之溫度,特佳係較玻璃轉移溫度更低40℃以上且為未達低於玻璃轉移溫度15℃之溫度之120℃前後的溫度,硬塗膜的燒結所需時間大致為30分鐘至2小時之間。
以下根據實施例來詳細說明本發明,但本發明並不限定於此等實施例。
一般而言,使用數種色彩的色素時之色調,可從所使用之各色的色素於380~780nm的吸光度之和當中,使用XYZ表色系或L*a*b*表色系來算出。
與藉由使用數種色彩的雙色性色素並在各色中改變雙色性色素對聚乙烯醇薄膜之染著量來得到期望色調和穿透率之偏光薄膜時相同,在芳香族聚碳酸酯偏光薄片的成形前後之色調中,亦可從成形前後之各色的雙色性色素之吸光度的和當中來算出。因此,作為本發明之實施例,係使用單色的雙色性色素,並測定成形前後的色調和穿透率以求取色差。
一邊在35℃的水中將聚乙烯醇(Kuraray股份有限公司製,商品名稱:VF-PS#7500)浸潤270秒,一邊拉伸2倍。然後在含有Sumilight Red 4B(C.I.28160)及10g/L的無水硫酸鈉之35℃的水溶液中進行染色。
一邊在35℃之含有乙酸鎳2.3g/L及硼酸4.4g/L之水溶液中將該染色薄膜浸漬120秒,一邊拉伸4倍。在保持緊繃狀態之狀態下,於室溫中對該薄膜進行3分鐘的乾燥後,於110℃中進行3分鐘的加熱處理,而得到偏光薄膜。
對所得之偏光薄膜的厚度與染入色素之區域進行測定之結果,以及所使用之色素於最大吸收波長的530nm時之偏光薄膜的雙色比,係如第1表中的樣本No.[1]所示。雙色比係藉由下列式求取。
雙色比=Az/Ax
在此,Ax表示最大穿透方向上之直線偏光的吸光度,Az表示與最大穿透方向正交之方向上之直線偏光的吸光度。Ax及Az,係使用島津製作所公司製的分光光度儀(UV-3600),使直線偏光入射於樣本並測定。
所得之偏光薄膜的剖面照片如第2圖的[A]所示。剖面照片係使用光學顯微鏡來攝影。
使用棒塗佈機#12將胺甲酸乙酯系黏著劑塗佈於(a)中所得之偏光薄膜,在70℃中乾燥10分鐘後,以使厚度0.3mm、阻滯值5500nm之芳香族聚碳酸酯薄片(三菱瓦斯化學公司製)的拉伸軸與偏光薄片的拉伸軸均成為偏光透鏡的水平方向之方式,以疊合機來貼合。
以與上述相同之方法將黏著劑塗佈於該層合薄片的偏光薄膜側,並將另1片芳香族聚碳酸酯薄片同樣地貼合,而得到芳香族聚碳酸酯偏光薄片。硬化後之黏著劑塗膜的厚度為9~11μm。
使用島津製作所公司製的分光光度儀(UV-3600)來測定製作出之芳香族聚碳酸酯偏光薄片的穿透率和色調。樣本No.[1]的穿透率與從L*a*b*表色系所求取之色調如第1表所示。
使用基礎曲線7.95(曲率半徑66.67mm)的模具,對(b)中所得之芳香族聚碳酸酯偏光薄片進行彎曲加工。於彎曲加工中,在模具溫度137℃、保持時間1200秒的條件下成形。在此所謂基礎曲線,是以透鏡前面的曲率之涵義來使用,為以毫米單位的曲率半徑除上530而得之值。
彎曲加工後之芳香族聚碳酸酯偏光透鏡中,偏光薄膜無龜裂。
與(c)同樣地測定的樣本No.[1]之彎曲加工後之芳香族聚碳酸酯偏光透鏡的穿透率和色調,以及成形前後之CIE1976(L*a*b*)色空間中的色差△E*ab,係如第1表所示。色差係藉由下列式求取。
色差:(△E*ab=((△L*)2+(△a*)2+(△b*)2)1/2
除了改變染色過程中的染料濃度與染色時間之外,其他與(a)相同,而得到雙色性色素的染著量相同並改變染入區域之偏光薄膜。所得之偏光薄膜的剖面照片如第2圖的[B]~[E]所示。
此外,對所得之偏光薄膜的厚度與染入色素之區域進行測定之結果,以及偏光薄膜的雙色比,係如第1表中的樣本No.[2]~[5]所示。
接著與(b)、(c)、(d)相同,測定彎曲加工前後之芳香族聚碳酸酯偏光透鏡的穿透率和色調以求取色差。測定結果如第1表中的樣本No.[2]~[5]所示。
染入色素之區域為3分之1以上之樣本No.[4]、[5]的色差為2.4以上,染入色素之區域為5分之1以內之樣本No.[2]、[3]的色差為1.9以內。
此外,彎曲加工後之芳香族聚碳酸酯偏光透鏡中,偏光薄膜無龜裂,其加工性與比較例1之芳香族聚碳酸酯偏光透鏡相比毫不遜色。
除了在含有乙酸鎳及硼酸之水溶液中拉伸4.4倍之外,其他與實施例1相同,而得到雙色性色素的染著量相同並改變染入區域之偏光薄膜。所得之偏光薄膜的剖面照片如第3圖的[F]~[I]所示。
此外,對所得之偏光薄膜的厚度與染入色素之區域進行測定之結果,以及偏光薄膜的雙色比,係如第2表中的樣本No.[6]~[9]所示。
接著與(b)、(c)、(d)相同,測定彎曲加工前後之芳香族聚碳酸酯偏光透鏡的穿透率和色調以求取色差。測定結果如第2表中的樣本No.[6]~[9]所示。
染入色素之區域為3分之1以上之樣本No.[8]、[9]的色差為1.9,染入色素之區域為4分之1以內之樣本No.[6]、[7]的色差為1.4。
此外,彎曲加工後之芳香族聚碳酸酯偏光透鏡中,偏光薄膜無龜裂,其加工性與比較例1之芳香族聚碳酸酯偏光透鏡相比毫不遜色。
除了在含有乙酸鎳及硼酸之水溶液中拉伸4.8倍之外,其他與實施例1相同,而得到雙色性色素的染著量相同並改變染入區域之偏光薄膜。所得之偏光薄膜的剖面照片如第4圖的[J]~[M]所示。
此外,對所得之偏光薄膜的厚度與染入色素之區域進行測定之結果,以及偏光薄膜的雙色比,係如第3表中的樣本No.[10]~[13]所示。
接著與(b)、(c)、(d)相同,測定彎曲加工前後之芳香族聚碳酸酯偏光透鏡的穿透率和色調以求取色差。測定結果如第3表中的樣本No.[10]~[13]所示。
染入色素之區域為約2分之1之樣本No.[13]的色差為2.4,染入色素之區域為3分之1以內之樣本No.[10]~[12]的色差為1.7以內。
此外,彎曲加工後之芳香族聚碳酸酯偏光透鏡中,偏光薄膜無龜裂,其加工性與比較例1之芳香族聚碳酸酯偏光透鏡相比毫不遜色。
從本實施例中,可得知使用染入雙色性色素之區域為從聚乙烯醇薄膜的表面至聚乙烯醇薄膜之厚度的4分之1以上之以往的偏光薄膜之芳香族聚碳酸酯偏光透鏡中,加工前後的色差大,相對於此,使用染入雙色性色素之區域為從聚乙烯醇薄膜的表面至聚乙烯醇薄膜之厚度的4分之1以內之區域,且在聚乙烯醇薄膜之厚度方向上的中心部未以雙色性色素染色之本發明的偏光薄膜之芳香族聚碳酸酯偏光透鏡中,加工前後的色差小,彎曲加工前後之色調和穿透率的變化小。
1‧‧‧偏光薄膜
2、3‧‧‧芳香族聚碳酸酯薄片
4、5‧‧‧黏著層
6‧‧‧芳香族聚碳酸酯
7‧‧‧偏光薄膜的剖面
8‧‧‧染入色素之區域
9‧‧‧未染入色素之區域
第1圖為本發明之芳香族聚碳酸酯偏光透鏡的剖面圖。
第2圖為本發明之芳香族聚碳酸酯偏光透鏡中所使用之偏光薄膜的剖面照片。剖面照片[A]相當於比較例1的樣本No.[1],[B]~[E]相當於實施例1的樣本No.[2]~[5]。
第3圖為本發明之芳香族聚碳酸酯偏光透鏡中所使用之偏光薄膜的剖面照片。剖面照片[F]~[I]相當於實施例2的樣本No.[6]~[9]。
第4圖為本發明之芳香族聚碳酸酯偏光透鏡中所使用之偏光薄膜的剖面照片。剖面照片[J]~[M]相當於實施例3的樣本No.[10]~[13]。
1‧‧‧偏光薄膜
2、3‧‧‧芳香族聚碳酸酯薄片
4、5‧‧‧黏著層
6‧‧‧芳香族聚碳酸酯
Claims (2)
- 一種偏光透鏡,其係將聚乙烯醇薄膜拉伸並以雙色性色素染色,分別透過第一黏著層及第二黏著層將芳香族聚碳酸酯薄片貼合於經拉伸的前述聚乙烯醇薄膜之上表面及下表面,並彎曲為球面或非球面之偏光透鏡,其特徵為:染入雙色性色素之區域,為從聚乙烯醇薄膜的上表面及下表面至聚乙烯醇薄膜之厚度的4分之1以內之區域,在聚乙烯醇薄膜之厚度方向上的中心部未以雙色性色素染色。
- 一種偏光透鏡,其係將聚乙烯醇薄膜拉伸並以雙色性色素染色,分別透過第一黏著層及第二黏著層將芳香族聚碳酸酯薄片貼合於經拉伸的前述聚乙烯醇薄膜之上表面及下表面,彎曲為球面或非球面,並將芳香族聚碳酸酯射出於該偏光薄片之上表面與下表面之一方的面而形成之偏光透鏡,其特徵為:從聚乙烯醇薄膜的上表面及下表面染入雙色性色素之區域,為聚乙烯醇薄膜之厚度的4分之1以內,在聚乙烯醇薄膜之厚度方向上的中心部未以雙色性色素染色。
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US7931369B2 (en) * | 2007-07-13 | 2011-04-26 | David Andrew Harris | Tinted lens and method of making same |
CN102027405A (zh) * | 2008-05-13 | 2011-04-20 | 帝人化成株式会社 | 偏光眼镜透镜 |
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- 2012-10-01 JP JP2013537581A patent/JP6104168B2/ja active Active
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- 2012-10-01 CN CN201280048190.3A patent/CN103842893B/zh active Active
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US5051309A (en) * | 1989-04-27 | 1991-09-24 | Mitsubishi Gas Chemical Co., Inc. | Anti-dazzling polycarbonate polarizing plate |
JP2005326872A (ja) * | 2005-06-21 | 2005-11-24 | Sumitomo Chemical Co Ltd | 染料系偏光フィルムの製造方法 |
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EP2765448A1 (en) | 2014-08-13 |
EP2765448A4 (en) | 2015-06-24 |
KR20140067161A (ko) | 2014-06-03 |
US20140375945A1 (en) | 2014-12-25 |
WO2013051723A1 (ja) | 2013-04-11 |
TW201329559A (zh) | 2013-07-16 |
US20190155059A1 (en) | 2019-05-23 |
US10838238B2 (en) | 2020-11-17 |
ES2809511T3 (es) | 2021-03-04 |
JP6104168B2 (ja) | 2017-03-29 |
JPWO2013051723A1 (ja) | 2015-03-30 |
CN103842893A (zh) | 2014-06-04 |
EP2765448B1 (en) | 2020-07-15 |
KR101972191B1 (ko) | 2019-04-24 |
CN103842893B (zh) | 2016-02-17 |
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