WO2002053345A1 - Article presentant une forme de surface predefinie et son procede de preparation - Google Patents
Article presentant une forme de surface predefinie et son procede de preparation Download PDFInfo
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- WO2002053345A1 WO2002053345A1 PCT/JP2001/011146 JP0111146W WO02053345A1 WO 2002053345 A1 WO2002053345 A1 WO 2002053345A1 JP 0111146 W JP0111146 W JP 0111146W WO 02053345 A1 WO02053345 A1 WO 02053345A1
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- substrate
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Classifications
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
- B29C39/148—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length characterised by the shape of the surface
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- 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
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/12—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/08—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C08L51/085—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds on to polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31609—Particulate metal or metal compound-containing
- Y10T428/31612—As silicone, silane or siloxane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31652—Of asbestos
- Y10T428/31663—As siloxane, silicone or silane
Definitions
- the present invention relates to articles having a predetermined surface shape and a method for producing them. More specifically, the present invention relates to an article having a predetermined surface shape represented by an optical element such as a reflection type diffraction grating, a transmission type diffraction grating, a lens array, or a Fresnel lens, and a method of manufacturing the same.
- an optical element such as a reflection type diffraction grating, a transmission type diffraction grating, a lens array, or a Fresnel lens
- Optical elements such as diffraction gratings and microlens arrays (microlens arrays) need to be provided with predetermined fine irregularities on the surface.
- JP-A-62-102445 and JP-A-6-242303 disclose that a solution containing silicon alkoxide is applied on a glass substrate, and a mold having irregularities is pressed against the coating film and heated. It describes a manufacturing method for forming an uneven portion on a substrate surface.
- an optical element obtained by thermal curing of silicon alkoxide has excellent heat resistance, but has a large shrinkage during the hydrolysis and polycondensation reaction process, and cannot satisfy the high precision required for the optical element. was there. Disclosure of the invention An object of the present invention is to solve the above-mentioned problems existing in the prior art, to provide an optical element having high heat resistance, small heat shrinkage during film formation and high dimensional accuracy, and having a fine uneven surface. An object is to provide an article having a predetermined surface shape.
- Another object of the present invention is to provide an industrially advantageous production method for producing the above-mentioned article of the present invention.
- a composition comprising a compound containing a dimethylsiloxane skeleton having at least three repeating units in the molecule and a compound containing at least one polymerizable organic group is brought into close contact with the surface of the substrate and the molding surface of the mold to form a film. At least one of heat and ultraviolet rays is applied to the composition arranged in the film form, then the mold is released, and then, if necessary, heated to obtain a surface shape of the mold. This is achieved by a method for producing an article having a predetermined surface shape, characterized by forming an article whose substrate surface is coated with a film having a surface having an inverted shape.
- the methyl group is 10 to 50% by weight
- the polymerizable portion of the polymerizable organic group is 1 to 30% by weight
- the Si single bond portion is 45 to 89% by weight.
- the total of the polymerizable portions of the polymerizable organic group is 11 to 55% by weight, and is obtained by an article having a predetermined surface shape.
- the composition used in the method of the present invention contains a compound having a linear or branched dimethylsiloxane skeleton having 3 or more repeating units.
- the dimethylsiloxane skeleton contributes to the heat resistance and low shrinkage of the resulting film. -((CHJ 2 If the number of repeating units represented by (S i -O) — is too small, the viscosity of the liquid composition becomes too small, and if the number of repeating units is too large, the viscosity of the liquid composition becomes too large. Difficulty in application and other operations and handling.
- the number of repeating units is preferably from 3 to 200, more preferably from 3 to L 0, and most preferably from 3 to 50.
- This compound has at least one polymerizable organic group in the molecule.
- Photopolymerization thermal polymerization
- Examples of the photopolymerizable organic group include an acryloxy group, a methacryloxy group, a vinyl group, an epoxy group, and an organic group containing these.
- Examples of the thermopolymerizable organic group include a vinyl group, an epoxy group, and an organic group containing these.
- the polymerizable organic group is an acryloxy group, a methyloxy group, or a Bier group, it is preferable that at least two of these groups are contained in the molecule of the compound.
- Examples of the acryloxy group-containing organic group include an acryloxy group-substituted alkyl group such as an acryloxypropyl group, and an acryloxy group-substituted hydroxyalkyl group.
- Examples of the organic group containing a methacryloxy group include a methacryloxy group-substituted alkyl group, a methacryloxyethoxy group, and a methacryloxypolyethylene group.
- Examples of the organic group containing a vinyl group include a vinylbenzyloxy group, an N-bierformamide group, and a vinyloxy group.
- Examples of the organic group containing an epoxy group include an epoxy group-substituted propoxy group, an epoxycyclohexylethyl group, an epoxyethylphenyl group, and the like. If there are too many polymerizable organic groups in the molecule, heat resistance and moisture resistance will be reduced. Therefore, the number of polymerizable organic groups in the molecule is preferably 50 or less.
- R 1 and R 2 are each independently a pinyl group or a group having an acryloxy, methacryloxy or epoxy group, and n is an integer of 3 to 200;
- a dimethylpolysiloxane having polymerizable organic groups at both ends represented by the following formula (2) '
- R 3 is each independently a pinyl group or a group having an acryloxy group, a methacryloxy group or an epoxy group, and m is an integer of 2 to 200; n is an integer of 1 to 50 when R 3 is an epoxy group, and an integer of 2 to 50 when R 3 is any other group. However, the sum of m and n is 3 to 200. Examples thereof include dimethylpolysiloxane having a trimethylsilyl group at both terminals and having two or more polymerizable organic groups.
- Specific examples include (acryloxypropylyl) methylsiloxane-dimethylsiloxane copolymer, (methacryloxypropyl) methylsiloxane-dimethylsiloxane copolymer, and Biermethyl) methylsiloxane-dimethylsiloxane copolymer.
- linear acryloxypropyl-terminated polydimethylpolysiloxane (the number of repeating units represented by one ((CH 3 ) 2 Si—O) — is 3 to 50);
- the methacryloxypropyl-terminated polydimethylpolysiloxane in the form of (-((CH 3 ) 2 Si 1 O) —the number of repeating units represented by 3 to 50) is particularly preferably used.
- linear acryloxypropyl-terminated polydimethylpolysiloxane and linear methacryloxypropyl-terminated polydimethylpolysiloxane each having a number of the repeating units of 10 to 25 are more preferably used.
- epoxysiloxane particularly a branched epoxysiloxane
- the liquid composition used in the present invention contains a photopolymerization initiator when the polymerizable organic group of the compound is photopolymerizable.
- the radical photopolymerization initiator include, for example,
- the above liquid composition is disposed in the form of a film in close contact between the surface of the substrate and the molding surface of the mold, and then at least one of heat and ultraviolet light is applied to the composition arranged in the film. Then, the mold is released from the mold, and then, if necessary, heated, so that the surface of the base material is coated with a film having a surface having a shape obtained by inverting the surface shape of the mold.
- An article having a shape, for example, an optical element is formed. Specific examples of the process include the following two methods.
- a liquid composition is poured into a mold, degassed, the base material and the liquid composition are joined, and at least one of heat and ultraviolet light is applied. Then, it is a method of heating as needed. That is, a molding die having a predetermined minute uneven shape on the molding surface is kept horizontal with the mold surface facing upward, and a liquid composition having a viscosity of 1 to 200 cSt is poured onto the molding die to form a liquid. The composition fills the mold cavity.
- the mold may be immersed in a bath of the liquid composition, or a brush may be used to apply the liquid composition to the molding surface of the mold. In that state, the liquid composition filled on the mold should not contain air,
- the substrate is brought into contact with the liquid on the mold so as not to form a gap between the liquid composition and the substrate surface, and the liquid composition is brought into close contact between the surface of the substrate and the molding surface of the mold.
- it is kept at 20 to 100 ° C for 1 to 30 minutes while irradiating ultraviolet rays, or it is heated to 140 to 250 ° C for 1 minute. Hold for 0 to 120 minutes to polymerize and cure the liquid composition.
- irradiating ultraviolet rays at least one of the substrate and the molding die is made of a material that can transmit ultraviolet rays.
- a film of a cured polydimethylsiloxane having on the surface a concave / convex shape obtained by inverting the concave / convex surface of the mold is formed in a state of being bonded to the surface of the base. Is done.
- the liquid composition is poured directly onto the substrate surface, degassed, and then the molding die is pressed against the film on the substrate surface and irradiated with ultraviolet light as it is. Injection or heating, after transfer molding, the mold is released, and final heating is performed if necessary. That is, the surface of the base material to be coated is kept horizontal, and a liquid composition having a viscosity of 1 to 200 cSt is poured on the base material so as to have a predetermined thickness on the surface of the base material. Spread in a film.
- the liquid composition filled on the surface of the base material should be kept at room temperature to 100 and at a reduced pressure of 2 to 5 Pa for 5 to 5 minutes so as not to contain air. Degas bubbles and dissolved oxygen in the liquid. Then the pressure by pressing on the mold a film-like liquid composition which have a predetermined minute irregularities on the surface 0. 5 ⁇ 1 2 0 k gZ cm 2, temperature 1 6 0 ° C ⁇ 3 5 0 ° C in either holds 6 0 seconds to 6 0 minutes, or pressed by the pressure, while irradiated so that the irradiation intensity at the irradiated position with ultraviolet in that state becomes 1. 0 ⁇ 5 0 mW / cm 2 The temperature is kept at 20 to 100 ° C.
- the substrate and the mold are made of a material that can transmit ultraviolet rays. Then, the mold is peeled off and the mold is released, forming a polydimethylsiloxane film, which is a hard film having a concave and convex shape on the surface that is the inverse of the concave and convex shape of the mold, bonded to the surface of the substrate. Is done. Then, if necessary, for example, by heating at 180 to 250 for 15 to 350 minutes under normal pressure or a reduced pressure of 2 to 5 Pa, it remains in the polysiloxane film.
- the film shrinks slightly in the thickness direction to form a dense film.
- an article such as an optical element coated with a film having a surface having a shape obtained by inverting the surface shape of the mold is obtained.
- the thickness of the release film is preferably from 200 to 1,000 nm, more preferably from 400 to 600 nm.
- the release film has a higher release property as the surface is smoother, the sputtering method, the vacuum deposition method, the electroless plating method, and the electrolytic method are used. It is preferable that the film is formed uniformly and smoothly by a plating method or a foil attaching method.
- Platinum (Pt), copper (Cu), palladium (Pd), and silver are provided below the release film of gold (Au), that is, between the surface of the mold base and the release film. It is preferable to provide an adhesive layer made of at least one metal selected from the group consisting of (Ag). Specifically, a layer of platinum (Pt;), copper (Cu), palladium (Pd), silver (Ag) or an alloy thereof is formed into a mold base before the release film is coated. It is coated with a predetermined thickness along the surface. The adhesion-enhancing layer firmly adheres the release film to the molding surface of the mold, and ensures that the molding surface layer (for example, silicon) of the mold base mixes with the release film during the formation of the release film.
- an adhesive layer made of at least one metal selected from the group consisting of (Ag). Specifically, a layer of platinum (Pt;), copper (Cu), palladium (Pd), silver (Ag) or an alloy thereof is formed into a mold base before the release film is coated. It
- Platinum (Pt) is a metal that is particularly excellent in adhesion and protection to the molding surface of the mold substrate. If the thickness of the adhesive layer is too small, the adhesion between the release film and the molding surface of the mold substrate cannot be enhanced, and the composition of the release film is not pure gold. Conversely, if the thickness is too large, the predetermined surface shape of the molding surface of the molding substrate changes, which is not preferable. Therefore, the thickness of the adhesion enhancing layer is 5
- the adhesion enhancing layer is preferably formed uniformly and smoothly by a sputtering method, a vacuum evaporation method, an electroless plating method, an electrolytic plating method, or the like.
- At least the molding surface of the molding die substrate is made of at least one material selected from the group consisting of titanium (T i), aluminum (A l), silicon (S i) and oxides thereof.
- the mold base may be an integral body made of titanium, aluminum, silicon, titanium oxide, aluminum oxide, or silicon oxide. Examples of such a substrate include silicon, glass (including quartz glass), resin, Titanium (T i), aluminum (A l), gay element (S i), and their oxidization are applied to the surface of the mold core made of metal or their composites (the surface on which the release film is coated).
- An underlayer made of at least one material selected from the group consisting of materials may be provided.
- the underlayer preferably has a thickness of 20 to 30 O nm, more preferably 50 to 100 nm.
- the underlayer is preferably formed uniformly and smoothly by a sputtering method, a vacuum evaporation method, an electroless plating method, an electrolytic plating method, or the like.
- a substrate obtained by vacuum-depositing titanium on the surface of a mold core material of silicon or quartz glass can be cited.
- mold core As the material of the mold core, it is preferable to select a material having an expansion coefficient similar to that of the release film.
- Mold cores made of resin have the advantage that they can be easily micro-processed and easily formed into a desired shape. Glass or metal mold cores have high heat resistance and high mechanical strength, and are durable Is excellent.
- the mold in the present invention has a concave or convex portion on the molding surface.
- the concave and convex portions include a spherical shape, a conical shape, a pyramid shape, and a slit shape having an arbitrary cross section.
- the spherical, conical, and pyramidal shapes are provided in an arbitrary number in the entire or partial area of the release film.
- the slit may be provided in an arbitrary shape in a straight line or a curved line.
- the substrate in the present invention for example, a substrate having a shape such as a flat plate shape and a curved plate shape is used.
- the amount of warpage of the substrate surface at 200 ° C and at 20 ° C is equal to the soil per cm. It is desirable to be within 5 m. If the amount of warpage exceeds this range, the substrate and the film may peel or crack at the interface during the film forming process. Therefore, it is preferable to select the material, dimensions, and shape of the substrate.
- the substrate 1. 5 X 1 0- 5 / ° is preferable to have a C following linear expansion coefficient les ⁇ substrate coefficient of linear expansion is greater than 1. 5 X 1 0- 5 / ° C when, for example, polypropylene case of (9 ⁇ 1 5 X 1 0- 5 /.C ) plastics substrate having a high thermal expansion coefficient, such as, surface and the membrane surface of the substrate in the molding process of the organopolysiloxane film This is due to peeling or cracking of the film.
- Typical inorganic glasses having 1. 5 X 1 0 _ 5 Z ° C or less coefficient of linear expansion. It is preferable that at least the surface of the substrate is an oxide.
- the adhesive strength is reduced in the process of forming the film, and in some cases, the substrate and the film are likely to peel off at the interface.
- the base material include silicate glass such as float glass, oxide glass such as borate glass and phosphate glass, quartz, ceramics, silicon, aluminum and other metals, epoxy resin, and gas. Lath fiber reinforced polystyrene and the like can be mentioned.
- the organopolysiloxane film does not bond with the metal as it is, but can be used as a base material if the metal surface is treated with an oxidizing agent in advance.
- the product obtained by the present invention is a lens array. It can function as a transmission type optical element such as a diffraction grating (for example, escieret diffraction grating, echelon diffraction grating, echelle diffraction grating, etc.) and a Fresnel lens.
- a transparent or opaque material is used as the base material, a metal (aluminum, silver, etc.) or a dielectric film (magnesium fluoride, titanium oxide, etc.) is formed on the organopolysiloxane film.
- a reflective optical element such as a reflective diffraction grating, a diffusion plate, and a Fresnel mirror, a CD-ROM, and other information recording media.
- an inorganic base material for example, chlorine silicate glass, boric acid glass, oxidized glass such as phosphate glass, or metal such as quartz, ceramics, silicon, aluminum, etc.
- a surface treatment composition containing a silane coupling agent is applied to the surface to form a film containing a silane coupling agent, preferably a film having a thickness of 5 to 20 O nm. Is desirable.
- silane coupling agent examples include a silicon compound having an organic functional group represented by the following formula (3).
- R 4 is a methacrylic group, an acrylic group, an epoxy group, an aryl group, a mercapto group or an organic group having an amino group or a vinyl group
- R 5 is an alkyl group, for example, a methyl group or an ethyl group
- 6 is a hydrolyzable group or atom
- k is 0 or 1.
- the organic group having a methyl acryl group, an acrylic group, an epoxy group, an aryl group, a mercapto group or an amino group include hydrogen of an alkyl group (for example, an alkyl group having 1 to 3 carbon atoms). Can be mentioned.
- R 6 hydrolyzable group or atom
- examples of R 6 include an alkoxyl group, an alkoxyalkoxyl group, an acetoxyl group, an amide group, an oxime group, a propoxyl group, and a chlorine atom.
- Specific examples of the silicon compound represented by the above formula (3) as the silane coupling agent are as follows.
- Examples of the acrylic functional silane (R 4 in the above formula (3) is an organic group having an acrylic group) include 3-acryloxypropyltrimethoxysilane, 3-acryloxypropylmethyldimethoxysilane, and 3-acryloxypropyl. Triethoxysilane, 3-acryloxypropylmethyl ethoxysilane and the like.
- Examples of the epoxy-functional silane (wherein R 4 in the above formula (3) is an organic group having an epoxy group) include 3-glycidoxypropyltrimethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxy Silane, 2- (3,4-epoxycyclohexyl) ethyltriethoxysilane, and the like.
- Examples of the methacryl-functional silane (where R 4 in the above formula (3) is an organic group having a methacryl group) include 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, and 3-methacryloxypropyl.
- Examples thereof include 3-methacryloxydidecyltrimethoxysilane and 3-methacryloxyshethyloxypropyltrimethoxysilane.
- Examples of the aryl-functional silane include aryltriethoxysilane, aryltrichlorosilane, aryltrimethoxysilane, and arylphenyldichlorosilane.
- the mercapto-functional silane organic group having 4 mercapto groups of the formula (3)
- Amino-functional silane (R 4 in the above formula (3) represents an amino group
- Examples of the organic group include 3-aminopropyltrimethoxysilane.
- Examples of the biel functional silane (R 4 in the above formula (3) is a biel group) include vinyl trimethoxysilane, biertriethoxysilane, biertris methoxyethoxy) silane, vinyl triacetoxy silane, vinyl trichlorosilane and the like. I can do it.
- the surface treatment composition includes, in addition to the silane coupling agent, a compound represented by the following formula (4):
- M is silicon, titanium, zirconium or aluminum
- R 7 is a hydrolyzable group or atom
- P is 4 when M is silicon, titanium or zirconium
- M is P is 3 when it is aluminum
- R 7 (hydrolyzable group or atom) includes an alkoxyl group, an alkoxyalkoxyl group, an acyloxy group, an acetoxyl group and a chlorine atom.
- the film containing the silane coupling agent formed on the surface of the substrate adheres more firmly to the surface of the substrate. If the content of this compound is too small, the effect of increasing the adhesive force is small, and if the content is too large, the effect of the silane coupling agent itself decreases. Therefore, the compound represented by the formula (4) (or a hydrolyzate thereof) may be contained in the surface treatment composition in an amount of 5 to 50 parts by weight based on 100 parts by weight of the silane coupling agent. It is good.
- examples of the compound in which M is silicon include tetraethoxysilane, tetramethoxysilane, tetra-2-methoxyethoxysilane, tetraacetoxysilane, tetrachlorosilane, and the like.
- compounds in which M is titanium include, for example, tetramethoxytitanium, tetraethoxytitanium, tetraisopropoxytitanium, tetraisopropoxytitanium isopropanol complex, tetran-propoxytitanium , Tetraisobutoxytitanium, Tetra n-butoxytitanium, Tetra sec-butoxytitanium, Tetra t-butoxytitanium Examples include titanium, tetra (2-ethylhexyloxy) titanium, and tetrastearyloxy titanium.
- compounds in which M is zirconium include, for example, tetramethoxyzirconium, tetraethoxyzirconium, tetraisopropoxyzirconium, tetra-n-propoxyzirconium, tetraisopropoxyzirconiumisopropanol complex, Examples thereof include isobutoxy zirconium, tetra n-butoxy zirconium, tetra sec-butoxy zirconium, and tetra-t-butoxy zirconium.
- compounds in which M is aluminum include, for example, trimethoxyaluminum, triethoxyaluminum, triisopropoxy / minium, trin-propoxya / minium, triisobutoxyamine Examples thereof include dimethyl, tri-n-butoxyaluminum, tri-sec-butoxyaluminum, and tri-t-butoxyaluminum.
- the hydrolyzate of the compound represented by the above formula (4) is a compound in which a part or all of R 7 in the compound is substituted with a hydroxyl group, and a compound in which the substituted hydroxyl groups are partially condensed naturally. Contains. These hydrolysates can be easily obtained by hydrolysis in a mixed solvent such as water and alcohol in the presence of an acid.
- the surface treatment composition contains an alcohol as an essential component in addition to the silane coupling agent and, if necessary, a compound represented by the above formula (4) or a hydrolyzate thereof; As an acid catalyst and water.
- the acid catalyst is not always necessary when the silane coupling agent and the compound represented by the formula (4) have already been hydrolyzed. It is preferable to include it as a catalyst for dehydration.
- the type of the acid catalyst is not particularly limited, but it is preferable that the acid catalyst that evaporates during drying and hardly remains on the film can have a higher hardness.
- hydrochloric acid, nitric acid, acetic acid, hydrofluoric acid, formic acid, trifluoroacetic acid and the like can be mentioned.
- the amount of the acid is preferably 1 0 5-1 0 parts by weight of the silane coupling agent 1 0 0 parts by weight, More preferably, the amount is 10 to 3 to 1 part by weight.
- the water is not always necessary when the silane coupling agent and the compound represented by the formula (4) are already hydrolyzed, but are not necessary when the compound is not hydrolyzed. It is preferable to include it in the surface treatment composition.
- the amount of water is from 10 to 100 parts by weight of the silane coupling agent, including the aqueous solvent of the compound represented by the formula (4) and the impurities contained in the alcohol described below as impurities. It is 300 parts by weight.
- the alcohol solvent is not particularly limited, but includes, for example, methanol, ethanol, 1-propanol, 2-propanol, butyl alcohol, and amyl alcohol.
- chain-type saturated monohydric alcohols having 3 or less carbon atoms such as methanol, ethanol, 1-propanol, and 2-propanol, are more preferably used because of their high evaporation rate at room temperature.
- the amount of the alcohol used depends on the coating method, the desired film thickness, and the like, but is preferably 500 to 100,000 parts by weight based on 100 parts by weight of the silane coupling agent.
- the method for applying the surface treatment composition is not particularly limited, and examples thereof include dip coating, flow coating, curtain coating, spin coating, spray coating, bar coating, mouth coating, and brush coating. No.
- the application of the surface treatment composition is performed in an atmosphere having a relative humidity of 40% or less at 0 to 40 ° C., for example, at room temperature. Drying after coating is carried out at 0 to 40 ° (: for example, at room temperature for 10 seconds to 20 minutes in an atmosphere with a relative humidity of 40% or less. It may be heated at the following temperature for 30 seconds to 10 minutes.
- the preferred composition of the surface treatment composition is as follows based on the silicon compound represented by the formula (3).
- Solvent 500 to 100,000 parts by weight.
- the present invention has heat resistance to withstand 350 ° C., and has a maximum thickness of 1 ⁇ ! 11 mm, preferably 20 1150 m, which has a refractive index of 1.5 01.54, which is close to the refractive index of ordinary glass, and has a fine uneven shape, for example, lm ⁇ 50
- a film made of organopolysiloxane having a surface unevenness having a predetermined value width (concavo-convex pitch) within a range of 0 m and a predetermined value height within a range of 5 to 500 m is formed into a flat plate-like or It is formed on a substrate that has been surface-treated with a curved plate-shaped silane coupling agent.
- the dimethylpolysiloxane film constituting this film has a methyl group content of 10 to 50% by weight, a polymerizable organic group polymerized portion of 1 to 30 Shigeki%, and a Si—O structure i portion of 45 to 8%. Each is contained at 9% by weight. However, the total of the polymerized portion of the methyl group and the polymerizable organic group is 11 to 55% by weight.
- This film has high elasticity (less brittleness), high strength of the film, and is unlikely to crack. Since no foaming is observed during molding and the film shrinks little during molding, excellent transferability with extremely high dimensional accuracy of fine irregularities on the film surface can be realized. Specifically, for example, when a large number of projections having a height of 20 to 100 m are formed, the height variation of the film surface projections is 1 zm or less. The deviation of the interval between the protrusions on the film surface from the mold is less than the measurement accuracy (0.2 zm).
- the optical element according to the present invention is used as a reflection type, it is preferable to form an enhanced reflection film on the surface of the optical element.
- the enhanced reflection film a metal thin film of gold, silver, platinum, aluminum, or the like, or an alternating laminate of a dielectric thin film having a high refractive index and a low refractive index is used.
- the dielectric thin film having a high refractive index include tantalum oxide, titanium oxide, zirconium oxide, and hafnium oxide. Among them, tantalum oxide stable to laser irradiation is preferably used.
- the low refractive index dielectric thin film silica or magnesium fluoride is used. A film configuration combining these metal thin films and a dielectric multilayer film may be used.
- the film is formed by adjusting the refractive index and thickness of the thin film so that the operating wavelength of the reflective optical element and the wavelength of the reflection peak of the enhanced reflection film match.
- Transmission type When used as an optical element, it is preferable to use an antireflection film at the interface with air.
- the anti-reflection film an alternating laminated body of a high refractive index and a low refractive index dielectric thin film, an anti-reflection structure having a fine periodic structure of 1 m or less, and the like are used.
- a coating film of an article having a predetermined surface shape such as an optical element obtained according to the present invention is composed of a matrix containing silicon and oxygen, and a part of the silicon atoms has at least 4 carbon atoms.
- One of the polyvalent hydrocarbon groups (for example, two acryloxypropyl groups are polymerized), and the other is connected to another GaN element, and a part of the GaN element is converted to a second monovalent hydrocarbon group. (Methyl group).
- the combination of the organic part and the inorganic part provides a material for an optical element having excellent heat resistance and moldability.
- the refractive index can be adjusted in the case of a transmission optical element. If the content of the first polyvalent hydrocarbon group and the content of the second monovalent hydrocarbon group are too large, the heat resistance will be affected. Therefore, the content is preferably 55% by weight or less.
- the first polyvalent hydrocarbon group binds a first silicon atom and a second silicon atom.
- an oxygen atom, a nitrogen atom, a sulfur atom, etc. May contain a hetero atom.
- Oxygen atoms and nitrogen atoms also have the function of strengthening the bonding force of the matrix and the function of strengthening the bonding force between the matrix and the substrate surface through chemical bonds such as ionic bonds and hydrogen bonds.
- the second monovalent hydrocarbon group may contain a hetero atom such as an oxygen atom, a nitrogen atom, and a sulfur atom in addition to a carbon atom and a hydrogen atom. Further, it may contain a fluorine atom or another halogen atom. By using a fluorine atom, the refractive index can be reduced and hydrophobicity can be imparted, so that the water resistance of the optical element can be increased.
- the method of manufacturing the articles in Examples 1 to 6 was performed according to the following procedure. (1) Preparation of polydimethylsiloxane solution, (2) Application of solution to mold or substrate Degassing, (3) Bonding, light irradiation release (however, bonding, heating and release in Example 6), (4) Final heating (firing).
- the method of manufacturing the articles of Examples 7 to 13 was performed according to the following procedure. (1) Preparation of a polydimethylsiloxane solution, (2) Application of a surface treatment composition containing a silane coupling agent to an inorganic substrate, (3) Application of the solution to a mold or a substrate-degassing, (4) Bonding ⁇ Light irradiation release, (5) Final heating (firing).
- Methacryloxypropyl-terminated polydimethylsiloxane (one ((CH 3 ) 2 S i 10) repeating unit represented by 10) 4 g and photoinitiator [2-hydroxy-12-methyl-11-phenylpropane-1 One ounce] was placed in a brown sample bottle, and stirred for 3 hours to obtain a raw material solution B.
- Methacryloxypropyl both terminated polydimethylsiloxane (- ((CH 3) 2 S one O) - 30 pieces repeating units represented by) 4g photoinitiator [2-hydroxy-2-methyl-1-phenylpropyl propane - 1 one ON] 0.04 g was placed in a brown sample bottle and stirred for 3 hours to obtain a raw material solution C.
- 3-Acryloxypropyltrimethoxysilane 0.4348 and 1183-10 (Colcoat Co., Ltd., solid content concentration 10% (hydrolyzate of tetraethoxysilane)) 0.868 g of a mixture of ethanol and 8.5988 A solution of 0.22 mol ZL of nitric acid in water was dissolved in a mixed solution of 0.0998 g, and stirred for 3 hours to obtain a silane coupling agent solution E.
- 2- (3,4-epoxy) ethyltrimethoxysilane 0.54 lg is dissolved in a mixed solution of ethanol 9.272 and 0.222mo 1 / L nitric acid aqueous solution 0.0998g and stirred for 3 hours.
- the silane coupling agent solution G was used.
- the solution A is poured onto the surface of a transparent mold to form a layer with a thickness of 50 m to lmm, and degassed by reducing the pressure to 3 to 5 Pa at room temperature for 5 minutes. did.
- a film viscosity: 180 cSt that could be photocured and formed on the mold or substrate was formed.
- the surface of the base material is then brought into contact with the coating film surface, and the In this state, the substrate was irradiated with ultraviolet rays for 1 to 30 minutes to be bonded to the substrate.
- heating was performed at 200 ° C. for 15 minutes instead of irradiation with ultraviolet light.
- the molding die was separated from the substrate and released. As a result, a fine uneven plate having a film on which the shape of the mold was transferred was adhered to the substrate surface.
- a transparent mold was pressed against the above-mentioned coating film, and was similarly irradiated with ultraviolet rays for 1 to 30 minutes to be bonded to the substrate. After that, it was released. As a result, a fine uneven plate having a film on which the shape of the mold was transferred was adhered to the substrate surface.
- the fine uneven plate obtained by releasing the mold was heated at 250 ° C. for 60 minutes in an atmosphere where the pressure was reduced to 2 to 3 Pa to obtain an article having an uneven surface.
- the performance and characteristics of the obtained article having an uneven surface were evaluated by the following methods. '
- the variation in the height of the convex portion of the outermost layer was measured by measuring the height with a laser microscope.
- the article After performing a heat resistance test at 300 ° C. for 2 hours with respect to the article having an uneven surface manufactured in the example and the comparative example, the article was returned to room temperature and observed for occurrence of cracks (cracks). The heat resistance was evaluated.
- the wavefront aberration of the diffraction grating, the spherical aberration of the microlens, and the inside of the substrate at an incident angle of 6 ° on the substrate surface The amount of reflection was measured before and after the heat test and evaluated.
- the d-line refractive index of the film was measured using an Abbe refractometer.
- Omm at 5 OmmX 5 Omm quartz glass plate: the (linear expansion coefficient 5. 5 X 10 one 7 Z ° C) as a base material 1 and ultrasonically cleaned Al force Li cleaning and pure water.
- Thickness 3 Omm at 2. 5 CMX 2. ⁇ of 5 cm Seo one da-lime glass composition (linear expansion coefficient: 1. 0X10- 5 Z ° C) ultrasonic alkali cleaning and pure water cleaning to the substrate 2 And
- the silane coupling agent solution E or F is applied to the surfaces of the above substrates 1 and 2 by spin coating at a substrate rotation speed of 1,500 rpm and an application time of 15 seconds. What was heated for 15 minutes was used as a surface-treated substrate. The applied film thickness of each silane coupling agent was 10 Onm.
- the surface treatments with the silane coupling agent solutions E, F, G, and H are referred to as surface treatments 1, 2, 3, and 4, respectively.
- Substrate of the quartz glass of 5 Omm angle thickness 3. Omm as a glass substrate (linear expansion coefficient: 5. 5X 10- 7 Z ° C ) and the ultrasonic cleaning alkaline cleaning and pure water.
- solution A a film was formed on one surface of the quartz glass substrate by a mold pouring method to form a fine concave-convex plate.
- 50 spherical arc-shaped concave parts with a radius of curvature of 1,750 ⁇ m, a lens diameter of 1,000 m, and a concave part depth of 73 / m are closely contacted in the vertical direction and 50 in the lateral direction.
- a total of about 2,500 glass molds (thickness: 5 mm, dimensions: 5 OmmX 5 Omm) were used.
- this mold is formed by forming a titanium (Ti) film with a thickness of 8 Onm as a base layer on the surface of the mold.
- Onm platinum (Pt) was deposited.
- this was put into a vacuum sputtering apparatus, and a 53-nm-thick gold (An) film was formed as a release film on the platinum layer by sputtering to obtain a mold. .
- the thickness of the thinnest area is about 20 ⁇ m, and the maximum thickness from the top of the spherical surface is 91.5.
- An organopolysiloxane film of m was formed on a quartz glass substrate, and the film surface formed the above-mentioned number of minute convex lenses.
- the thickness of the solution A was about 100 m, the degassing after the coating was performed gradually at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the UV irradiation conditions were irradiation from the substrate side, intensity 10 mW / cm 2 , room temperature for 10 minutes, and final heating conditions at 3 Pa at 250 ° C for 60 minutes.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contains 32.7% by weight of a methyl group, an acrylic polymer part [1- (CH 2 ) 3 ⁇ CO (CH 2 ) 4 COO (CH 2 ) 3 _] and a Si—O structural part, respectively. It contained 7% by weight and 46.6% by weight.
- the focal length of the fabricated micro convex lens (micro lens) was 3,297 to 3,300 Mm.
- the height of the projections of this plate with a film was measured for 100 randomly selected spherical projections, and the average height was 71.5 m and the standard deviation was 0.12 m. .
- the heat resistance evaluation of this plate no cracks or peeling occurred in the film, and the focal lengths of all the projections were in the range of 3,297 to 3,300 / im, which was the same as before the heat test.
- the diameter of the converging spot was measured with parallel light incident vertically from the opposite side of the film, the diameter of the converging spot was within 3 m for all convex lenses, which was the same as the value before the heat test. won.
- Acrylic acid monomer was used without solvent in place of the solution A used in Example 1, and a micro-textured plate was formed by the method described in Example 1 using the same substrate and mold as in Example 1 except for the above. However, the thickness of the thinnest region was about 35 im.
- the height of the convex portions of this plate was measured for 100 randomly selected spherical convex portions, and the average shrinkage was 6%, which was larger than that in Example 1.
- the average spherical aberration measured by 100 points is 0.3 ⁇ and the standard deviation is 0.01 ⁇ . Compared to 1, the value of the spherical aberration was large (6 times) and its standard deviation (variation) was 10 times as large.
- the shape of the focused spot was bad and the diameter of the focused spot was 10 / m.
- the focal length varied widely from 2,900 to 3,600 zm. Further, as in Example 1, the heat resistance was evaluated. As a result, cracks, peeling, and the like occurred, and the shape was greatly deformed, so that the focal length and spherical aberration could not be evaluated.
- the thinnest region had a film thickness of about 5 O ⁇ m.
- the height of the convex portions of this plate was measured at 100 randomly selected spherical convex portions, and the average shrinkage was 10%, which was larger than that in Example 1.
- the average spherical aberration measured by the 10 Q point measurement was 0.75 ⁇ and the standard deviation was 0.15 ⁇ , and the value of the spherical aberration was larger (15 times) than in Example 1.
- the standard deviation (variation) was as large as 15 times.
- Example 2 Since the dispersion was large and the shape was not spherical, the shape of the focused spot was bad and the diameter of the focused spot was 12 / xm. Although the focal length varied widely from 3,000 to 3,50 Om, as in Example 1, the heat resistance was evaluated. As a result, no cracking or peeling occurred, and the focal length and spherical aberration were also before the test. The value of did not change.
- Example 2
- the thickness as the glass substrate 3. Omm at 2. 5 cm square source one da-lime glass base plate (linear expansion coefficient: 1. 0X 10_ 5 Z ° C ) ultrasonic alkali cleaning and pure water cleaning.
- a solution B a film was formed on one surface of the glass substrate by a substrate pouring method to form a fine uneven plate.
- a gasket with a roughly semi-circular cross-section with a radius of curvature of 100 / m and a gutter-like recess with a length of 2.5 cm closely arranged in the vertical direction and 120 in parallel
- a lath mold provided with the same release coating as in Example 1 was used.
- an organopolysiloxane film with the thickness of the thinnest region of about 30 jim and the maximum thickness from the top of the semicircle of 130 m is formed on the soda lime glass substrate.
- 120 minute cylindrical convex lenses were formed on the surface.
- the thickness of the solution A coating was about 150 m, the degassing after the coating was performed gradually at room temperature over 5 minutes, and the final pressure was 5 Pa.
- UV irradiation conditions were irradiation from the substrate side, intensity 10 mW / cm 2 , room temperature for 10 minutes, and final heating conditions at 3 Pa at 250 ° C for 60 minutes.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contained 32.0% by weight, 22.5% by weight, and 45.5% by weight of a methyl group, a methylacrylic polymerized portion and a S i -0 structural portion, respectively.
- the height of the cylindrical projections of this substrate was measured at random 20 times, and the average height from the substrate surface was 130 m and the standard deviation was 0.11 / im. As a result of evaluating the heat resistance of this substrate, no crack was generated in the film, and no change was observed in the appearance, the height of the projections of the film, its standard deviation, and the pitch of the projections.
- As the glass substrate substrate (linear expansion coefficient: 1. 0X 10- 5 / ° C ) ultrasonic alkali cleaning and pure water cleaning.
- As a mold a silicon reflective echelon diffraction grating with an average thickness of 2. Omm and a 2.5 cm square (approx. 1,0 mm on the surface of the silicon substrate by masking and etching)
- the thickness of the solution A was about 150 m, and degassing after the coating was performed at room temperature.
- the final pressure was 5 Pa.
- the UV irradiation conditions were 1 OmWZcm 2 intensity, room temperature for 10 minutes, and the final heating conditions were 3 Pa at 250 ° C for 60 minutes.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the stair height of the fine uneven plate was measured at a total of 100 points at intervals of 9 mm in the length direction of each of the 10 randomly selected linear projections. The average height was 20.2 m and the standard deviation was 0.05. m. In this way, the 1.55 im light and 1.30 m light can be converted into 26th-order and 31st-order diffracted light, respectively, and can be used as a fine uneven plate that can be selectively reflected (blazed) efficiently.
- ⁇ 633 ⁇
- As the glass substrate substrate (linear expansion coefficient: 1. 0X 10- 5 /) ultrasonic alkali cleaning and pure water cleaning.
- the surface of this diffraction grating is coated with 8 Onm thick Cr by a plating method in order to improve the releasability of the surface when used in a mold, and then a 5 nm thick layer is formed on it by a sputtering method.
- Au layer is coated.
- a fine concave-convex plate which is a reflective blazed diffraction grating, was formed according to a mold pouring method so that the thickness of the thinnest region was about 3 m.
- the thickness of the solution C applied was about 15 Om, and degassing after the application was performed gradually at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the conditions of UV irradiation were 1 OmWZcm 2 at room temperature and 10 minutes at room temperature, and the final heating conditions were 250 ° C. and 60 minutes at 3 Pa.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contains methyl groups, methacrylic polymerized parts and Si— ⁇
- the structural parts contained 36.8% by weight, 9.8% by weight and 53.4% by weight, respectively.
- the film thickness of the convex portion was 3. ⁇
- the film thickness of the concave portion was 2.2 m
- the refractive index was 1.48.
- the stair height of this fine uneven plate was measured at a total of 100 points at intervals of 9 mm in the length direction of each of the ten randomly selected linear projections. The average height was 3.0 m, and the standard deviation was 0.05. m.
- the glass substrate in a thickness 3 Omm 2. 5 cmX 2. substrate soda lime glass of 5 cm (linear expansion coefficient: 1. 0 X 1 0- 5 / ° C) ultrasonic alkali cleaning, pure water washing, ⁇ did.
- the above substrate and solution D reflection was performed according to the mold pouring method so that the film thickness in the thinnest region was about 40 m.
- a fine concavo-convex plate serving as a type Echelon diffraction grating was formed.
- the thickness of the solution D was about 150 m, and degassing after the coating was gradually performed at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the UV irradiation conditions were an intensity of 10 mW / cm 2 and a room temperature of 10 minutes, and the final heating conditions were 3 Pa at 250 ° C. for 60 minutes.
- the organopolysiloxane cured film of the fine uneven plate produced as described above was transparent and had a refractive index of 1.46.
- the stair height of this fine uneven plate was measured at a total of 100 points at intervals of 9 mm in the length direction of 10 randomly selected linear projections. The average height was 20.2 2111 and the standard deviation was 0.0 5 m.
- the 1.5531 light and 1.30 zm light can be selectively reflected (blazed) efficiently as 26th-order and 31st-order diffracted light, respectively.
- a reflection-type echelon diffraction grating consisting of a concavo-convex plate was obtained.
- a soda-lime glass substrate (linear expansion coefficient: 1. oxio-sz) with a thickness of 3.0 mm and a size of 2.5 cm ⁇ 2.5 cm as a glass substrate was subjected to ultrasonic alkali cleaning and pure water cleaning.
- the thickness of the thinnest region was about 40 m.
- the reflection mold was used.
- a fine concavo-convex plate serving as an echelon diffraction grating was formed.
- the thickness of the solution D was about 150 m, and degassing after the coating was gradually performed at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the mixture was heated at 200 ° C. for 15 minutes under a pressure of 15 kg / cm 2 , then cooled to room temperature over 10 minutes, the pressure was stopped, and the mold was released.
- the final heating conditions were 3 Pa and 250 ° C for 60 minutes.
- the organopolysiloxane cured film of the fine uneven plate produced as described above was transparent and had a refractive index of 1.46.
- the stair height of this fine uneven plate was measured at a total of 100 points at intervals of 9 mm in the length direction of 10 randomly selected linear projections, and the average height was 20.2 ⁇ standard deviation 0.05 m Met.
- the 1.55 m light and the 1.30 m light can be selectively reflected (blazed) efficiently as 26th-order and 31st-order diffracted light, respectively.
- a reflective Echelon diffraction grating was obtained. This reflection type echelon diffraction grating
- a film was formed on the surface of the substrate 1 having been subjected to the surface treatment 1 by a mold pouring method to form a fine uneven plate.
- a mold a spherical arc-shaped recess with a radius of curvature of 1,750 mm, a lens diameter of 1, 000 / am, and a depth of recess of 73 m is set in the vertical direction.
- a glass mold (thickness: 5 mm, dimensions: 50] 11111 50] 11111) was used, which had 50 pieces in close contact with each other and 50 pieces in close contact with the horizontal direction.
- a titanium (TO) film with a thickness of 8 Onm was formed as a base layer on the surface of the mold, and subsequently, a platinum ( Next, this was put into a vacuum sputtering apparatus, and a 53 nm-thick gold (Au) film was formed as a release film on the platinum layer by a sputtering method. After the final heating, an organopolysiloxane film having a thickness of about 2 (m) in the thinnest region and a maximum thickness of 91.5 m from the top of the spherical surface was placed on the surface-treated substrate 1.
- the thickness of the coating of solution A was about 100 m, and degassing after coating was performed at room temperature for 5 minutes. performed slowly, the final pressure was 5 Pa.
- UV irradiation conditions irradiation from the substrate side, the intensity 10 mWZ cm 2, a room temperature for 10 minutes The final heating conditions were 250 ° C, 60 minutes at 3 Pa.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.4 ⁇ .
- the focal length of the fabricated micro convex lens (micro lens) was 3,297-3,300 m.
- the height of the projections of this plate with a film was measured for 100 randomly selected spherical projections, and the average height was 71.5 m and the standard deviation was 0.12 m. .
- the diameter of the light-collecting spot was measured with parallel light incident vertically from the opposite side of the lens, and the diameter of the light-collecting spot was within 3 m for all convex lenses, which was different from the value before the heat resistance test. It was not. In the film adhesion test, it is 100% and has strong adhesion. there were. No peeling was observed in the chemical resistance test.
- Example 7 was repeated using the same base material 1 and a mold as in Example 7 except that acrylic acid monomer was used without solvent in place of the solution A used in Example 7.
- the film thickness in the thinnest region was about 35 m.
- the height of the convex portion of this plate was measured for 100 randomly selected spherical convex portions, and the average shrinkage was 6%, which was larger than that of Example 7.
- the average spherical aberration measured at 100 points is 0.3 ⁇ and the standard deviation is 01 ⁇ , and the spherical aberration value is larger (6 times) and the standard deviation (variation) as compared with Example 7. ) was also 10 times larger.
- the shape of the focusing spot was bad and the diameter of the focusing spot was 10 m.
- the focal length varied widely from 2,900 to 3,600 m. Further, as in Example 7, the heat resistance was evaluated. As a result, cracks and peeling occurred, and the shape was greatly deformed, so that the focal length and spherical aberration could not be evaluated.
- the thinnest region had a thickness of about 50 m.
- the height of the convex portion of this plate was measured at 100 randomly selected spherical convex portions, and the average shrinkage was 10%, which was larger than that of Example 7.
- the average spherical aberration measured at 100 points is 0.75 ⁇ and the standard deviation is 0.15 hours.
- the value of the spherical aberration is larger than that of Example 7 (15 times).
- the deviation (variation) was as large as 15 times. Since the dispersion was large and the shape was not spherical, the shape of the focused spot was poor and the diameter of the focused spot was 12 m.
- the focal length is between 3,000 and 3,50. Although it varied greatly as 0 m, as in Example 7, as a result of the heat resistance evaluation, no cracks or peeling occurred, and the focal length and spherical aberration were not different from the values before the test. Comparative Example 5
- a finely uneven substrate was formed in the same manner as in Example 7, except that the substrate 1 not subjected to the silane coupling treatment was used instead of the substrate 1 subjected to the surface treatment 1 used in Example 7.
- the focal length of the manufactured micro convex lens (micro lens), the height of the convex portion, the spherical aberration, and the durability of this plate with a film (micro concave / convex plate) were the same as those in Example 7.
- the adhesion test of the film it was 20% and the adhesion was not strong.
- the peeling was 80%.
- a film was formed on one surface of the substrate 2 that had been subjected to the surface treatment 1 by a substrate pouring method to form a fine uneven plate.
- a molding die As a molding die, it has a cross section of a substantially semicircular arc with a radius of curvature of 100 m, and is made of glass with 2.5 cm long gutter-shaped recesses arranged closely in the vertical direction in a row of 120 A mold having the same release coating as in Example 7 was used.
- an organopolysiloxane film having a thickness of about 30 m in the thinnest region and a maximum thickness of 130 m from the top of the semicircle is formed on the base material 2.
- the thickness of the solution A applied was about 150 m, and the degassing conditions, ultraviolet irradiation conditions, and final heating conditions after the application were the same as those in Example 7.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contained 32.0% by weight, 22.5% by weight, and 45.5% by weight of a methyl group, a methacrylic polymerized portion, and a Si—O structural portion, respectively.
- the height of the cylindrical protrusions of this substrate was measured at random 20 times, and the average height from the substrate surface was 130 m and the standard deviation was 0.11 m.
- the heat resistance of this substrate no crack was generated in the film, and no change was observed in the appearance, the height of the projections of the film, its standard deviation, and the pitch of the projections.
- a film was formed on one surface of the substrate 2 having been subjected to the surface treatment 3 by a substrate pouring method to form a fine uneven plate.
- a mold having the same release coating as that used in Example 8 was used.
- an organopolysiloxane film having a thickness of about 30 Xm in the thinnest region and a maximum thickness of 130 m from the top of the semicircle is formed on the substrate 2, and the film is formed.
- 120 minute cylindrical convex lenses were formed.
- the thickness of the solution B applied was about 150 xm, the degassing after the application was performed gradually at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the molding condition was obtained by treating the mold with a hot plate at 150 ° C. for 15 minutes.
- the final heating conditions were 3 Pa at 250 ° C. for 60 minutes.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contained 32.0% by weight, 22.5% by weight, and 45.5% by weight of a methyl group, a methacrylic polymerized portion, and a Si-0 structure portion, respectively.
- the height of the cylindrical projections of this substrate was measured at random 20 times, and the average height from the substrate surface was 130 / m and the standard deviation was 0.11 m.
- the heat resistance of this substrate no crack was generated in the film, and no change was observed in the appearance, the height of the projections of the film, its standard deviation, and the pitch of the projections.
- a film was formed on one surface of the substrate 1 having been subjected to the surface treatment 4 by a substrate pouring method to form a fine uneven plate.
- a mold having the same release coating as that used in Example 8 was used.
- an organopolysiloxane film having a thickness of about 3 m in the thinnest region and a maximum thickness of 130 m from the top of the semicircle is formed on the substrate 2, and is formed on the film surface. In this case, 120 minute cylindrical convex lenses were formed.
- the thickness of the solution B applied was about 150 m, and the degassing conditions, ultraviolet irradiation conditions, and final heating conditions after the application were the same as those in Example 8.
- the cured organopolysiloxane film prepared as described above is transparent, The rate was 1.48.
- the film contained 32.0% by weight, 22.5% by weight, and 45.5% by weight of a methyl group, a methylacrylic polymerized portion and a Si—O structural portion, respectively.
- the height of the cylindrical projections of this substrate was measured at random 20 times, and the average height from the substrate surface was 130 m and the standard deviation was 0.11 m.
- no crack was generated in the film, and no change was observed in the appearance, the height of the projections of the film, its standard deviation, and the pitch of the projections.
- the exfoliation in the chemical resistance test was 5%.
- a silicon reflective echelon diffraction grating with an average thickness of 2. Omm and 2.5 cm square (approximately 1,000 peak-shaped irregularities (parallel linear convexes) on the silicon substrate surface by masking and etching.
- the slopes on both sides of the mountain coincide with the (1,1,1) plane of the silicon crystal, with a step height of 20.15 m, a step width of 14.3 rn, and adjacent grid lines.
- a gap (measured at the peak) of about 24.7, a flat portion at the top of the peak (length of about 5.0 m left unetched) was prepared.
- the substrate 2 which had been subjected to the surface treatment 1, the above mold, and the solution A were used, and the film thickness in the thinnest region was about 40.
- a fine concavo-convex plate which is a reflection type Echelon diffraction grating, was formed so as to have a thickness of m.
- the thickness was about 150 m, and the degassing conditions, ultraviolet irradiation conditions, and final heating conditions after coating were the same as in Example 8.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the stair height of this fine uneven plate was measured at a total of 100 points at 9 mm intervals in the length direction of each of the 10 randomly selected linear projections, and the average height was 20.2 ⁇ , the standard deviation was 0.05. 111.
- the 1.55 m light and 1.30 m light can be converted into 26th-order and 31st-order diffracted light, respectively, and can be selectively reflected (blazed) by a fine uneven plate.
- ⁇ 633 nm
- a 5 mm thick, 3.0 cm x 3.0 cm resin blazed diffraction grating (pitch: 1. lm, groove depth: 0.8 urn, sawtooth shape) was prepared as a mold.
- the surface of this diffraction grating is coated with Cr of 80 nm thickness by a plating method to improve the releasability of the surface when used in a molding die, and then a 5 nm thick layer is formed thereon by sputtering. Au layer is coated.
- the reflection-type blazed diffraction grating is formed according to the mold pouring method so that the film thickness of the thinnest region is about 3 m. An uneven plate was formed.
- the thickness of the solution C was about 150 m, the degassing after the coating was performed gradually at room temperature over 5 minutes, and the final pressure was 5 Pa.
- the UV irradiation conditions were intensity 1 OmWZcm 2 , room temperature for 10 minutes, and the final heating conditions were 3 Pa at 250 ° C for 60 minutes.
- the cured organopolysiloxane film produced as described above was transparent and had a refractive index of 1.48.
- the film contained 36.8% by weight, 9.8% by weight, and 53.4% by weight of a methyl group, a methacrylic polymerized portion and a Si-0 structure portion, respectively.
- the thickness of the convex portion was 3. Oiim
- the thickness of the concave portion was 2.2 m
- the refractive index was 1.48.
- the stair height of this fine uneven plate was measured at a total of 100 points at intervals of 9 mm in the length direction of each of the 10 randomly selected linear projections. The average height was 3.0 nm and the standard deviation was 0.05 m. Met.
- a reflective blazed diffraction grating consisting of a fine concavo-convex plate capable of efficiently selectively reflecting (blazing) the first-order diffracted light of 1.55 m light was obtained.
- a crack was found in the film. No appearance was observed, and the appearance, the height of the convex portion of the film, its standard deviation, the diffraction pattern, and the wavefront aberration were not changed as compared with the values before the heat test.
- the film adhesion test it was 100%, indicating that the film had strong adhesion. No peeling was observed in the chemical resistance test.
- the mold was poured so that the film thickness in the thinnest region was about 40 xm. According to the method, a fine concavo-convex plate which is a reflection type Echelon diffraction grating was formed. Note that the thickness of the solution D applied was about 150 im, and the degassing conditions, ultraviolet irradiation conditions, and final heating conditions after the application were the same as those in Example 12.
- the organopolysiloxane cured film of the fine uneven plate produced as described above was transparent and had a refractive index of 1.46.
- the stair height of this fine uneven plate was measured at a total of 100 points at 9 mm intervals in the length direction of each of the 10 randomly selected linear projections, and the average height was 20.2 m and the standard deviation was 0. Was. In this way, a fine uneven plate that can efficiently selectively reflect (blaze) the 1.55 11 light and 1.30 m light as the 26th-order and 31st-order diffracted light, respectively.
- a reflection-type diffraction grating consisting of the above-mentioned was obtained.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP01994972A EP1344620A4 (en) | 2000-12-22 | 2001-12-19 | OBJECT OF PREFERRED SURFACE FORM AND METHOD FOR THE PRODUCTION THEREOF |
JP2002554279A JPWO2002053345A1 (ja) | 2000-12-22 | 2001-12-19 | 所定表面形状を有する物品およびその製造方法 |
US10/204,324 US6740366B2 (en) | 2000-12-22 | 2001-12-19 | Article having predetermined surface shape and method for preparing the same |
KR1020027010882A KR20020091094A (ko) | 2000-12-22 | 2001-12-19 | 소정 표면 형상을 갖는 물품 및 그 제조방법 |
CA 2400744 CA2400744A1 (en) | 2000-12-22 | 2001-12-19 | Article having predetermined surface configuration and production process therefor |
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JP2000390588 | 2000-12-22 | ||
JP2000-390588 | 2000-12-22 | ||
JP2001059480 | 2001-03-05 | ||
JP2001-59480 | 2001-03-05 | ||
JP2001207718 | 2001-07-09 | ||
JP2001-207718 | 2001-07-09 |
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WO2002053345A1 true WO2002053345A1 (fr) | 2002-07-11 |
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PCT/JP2001/011146 WO2002053345A1 (fr) | 2000-12-22 | 2001-12-19 | Article presentant une forme de surface predefinie et son procede de preparation |
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US (1) | US6740366B2 (ja) |
EP (1) | EP1344620A4 (ja) |
JP (1) | JPWO2002053345A1 (ja) |
KR (1) | KR20020091094A (ja) |
CN (1) | CN100343037C (ja) |
CA (1) | CA2400744A1 (ja) |
WO (1) | WO2002053345A1 (ja) |
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WO2005095102A1 (ja) * | 2004-03-31 | 2005-10-13 | Nippon Sheet Glass Company, Limited | シリカ系膜が形成された物品およびその製造方法 |
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2001
- 2001-12-19 EP EP01994972A patent/EP1344620A4/en not_active Withdrawn
- 2001-12-19 CA CA 2400744 patent/CA2400744A1/en not_active Abandoned
- 2001-12-19 WO PCT/JP2001/011146 patent/WO2002053345A1/ja not_active Application Discontinuation
- 2001-12-19 KR KR1020027010882A patent/KR20020091094A/ko not_active Application Discontinuation
- 2001-12-19 CN CNB018055036A patent/CN100343037C/zh not_active Expired - Fee Related
- 2001-12-19 US US10/204,324 patent/US6740366B2/en not_active Expired - Fee Related
- 2001-12-19 JP JP2002554279A patent/JPWO2002053345A1/ja active Pending
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2005095102A1 (ja) * | 2004-03-31 | 2005-10-13 | Nippon Sheet Glass Company, Limited | シリカ系膜が形成された物品およびその製造方法 |
WO2005095101A1 (ja) * | 2004-03-31 | 2005-10-13 | Nippon Sheet Glass Company, Limited | 有機無機複合膜が形成された物品およびその製造方法 |
US7749606B2 (en) | 2004-03-31 | 2010-07-06 | Nippon Sheet Glass Company, Limited | Article with organic-inorganic composite film and process for producing the same |
US8039111B2 (en) | 2005-10-05 | 2011-10-18 | Nippon Sheet Glass Company, Limited | Article with organic-inorganic composite film |
JP2015522440A (ja) * | 2012-05-02 | 2015-08-06 | ヘレーウス ノーブルライト ゲゼルシャフト ミット ベシュレンクテルハフツングHeraeus Noblelight GmbH | シリコーン光学系を有する光学モジュールを製造する方法、光学モジュール及びその使用 |
JP2017043104A (ja) * | 2012-05-02 | 2017-03-02 | ヘレーウス ノーブルライト ゲゼルシャフト ミット ベシュレンクテル ハフツングHeraeus Noblelight GmbH | シリコーン光学系を有する光学モジュールを製造する方法、光学モジュール及びその使用 |
WO2019216384A1 (ja) * | 2018-05-11 | 2019-11-14 | デクセリアルズ株式会社 | 積層体、及びその製造方法、並びにフレネルミラー、及びその製造方法 |
JP2019200409A (ja) * | 2018-05-11 | 2019-11-21 | デクセリアルズ株式会社 | 積層体、及びその製造方法、並びにフレネルミラー、及びその製造方法 |
JP2020106850A (ja) * | 2018-05-11 | 2020-07-09 | デクセリアルズ株式会社 | 積層体、及びその製造方法、並びにフレネルミラー、及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US6740366B2 (en) | 2004-05-25 |
CN1404436A (zh) | 2003-03-19 |
US20030027967A1 (en) | 2003-02-06 |
EP1344620A1 (en) | 2003-09-17 |
CA2400744A1 (en) | 2002-07-11 |
KR20020091094A (ko) | 2002-12-05 |
EP1344620A4 (en) | 2005-06-22 |
CN100343037C (zh) | 2007-10-17 |
JPWO2002053345A1 (ja) | 2004-04-30 |
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