WO2004095087A1 - ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズの製造方法、ハイブリッドレンズ及びレンズ系 - Google Patents
ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズの製造方法、ハイブリッドレンズ及びレンズ系 Download PDFInfo
- Publication number
- WO2004095087A1 WO2004095087A1 PCT/JP2004/005655 JP2004005655W WO2004095087A1 WO 2004095087 A1 WO2004095087 A1 WO 2004095087A1 JP 2004005655 W JP2004005655 W JP 2004005655W WO 2004095087 A1 WO2004095087 A1 WO 2004095087A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lens
- hybrid lens
- glass
- resin composition
- hybrid
- Prior art date
Links
Classifications
-
- 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
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
-
- 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
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/26—Moulds or cores
- B29C39/32—Moulds or cores with joints or the like for making the mould impervious
-
- 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
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
-
- 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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L43/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Compositions of derivatives of such polymers
- C08L43/04—Homopolymers or copolymers of monomers containing silicon
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/04—Reversed telephoto objectives
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Definitions
- Resin composition for hybrid lens for producing hybrid lens, hybrid lens and lens system
- the present invention relates to a technique for manufacturing a hybrid lens in which a resin layer is bonded to a glass lens base material.
- optical elements having an aspherical surface have been actively used in order to improve the performance, size, weight, and cost of optical elements such as lenses and reflecting mirrors.
- the projection lens for a liquid crystal projector is an advanced optical system because it is necessary to magnify an image at a short distance and requires a large number of lenses required for aberration correction.
- the last lens of the optical system has a large aperture.
- the number of lenses required for aberration correction can be significantly reduced as compared with a configuration using only a spherical lens.
- the number of lenses that can be reduced increases, but it has been extremely difficult to manufacture aspherical lenses with a large amount of aspherical surfaces, especially large-diameter aspherical lenses. It was difficult.
- an aspherical lens As another method of manufacturing an aspherical lens, a manufacturing method in which an aspherical resin layer is formed on a spherical glass lens is known. Such an aspherical lens is called a hybrid lens. '
- the method of manufacturing a hybrid lens is to use a spherical glass lens as a base material, combine it with a molding die that transfers an aspherical shape, and fill an ultraviolet curable resin composition between the base material and the molding die. After irradiating ultraviolet rays from the base material side to cure the ultraviolet-curable resin composition, the molding die is detached, and the aspherical shape is formed on the base material by transfer from the molding die. It is common to join the resin layers that have formed.
- the glass lens base material may be cracked when the molding die is released after the resin is cured on the glass lens base material.
- the glass lens base material surface and the resin layer are separated from each other due to thermal stress due to a change in environmental temperature during storage, and optical characteristics cannot be maintained in some cases. These phenomena are particularly conspicuous when the diameter is large and the resin layer is thick.
- the thickness of the resin layer is about 10 to 300 ⁇ , and at most about 1 mm.
- the ratio of the maximum thickness / minimum thickness is 3F or more.
- the present invention has been made in view of the above circumstances, and is intended for a hybrid lens capable of manufacturing a high-performance hybrid lens having a thick resin layer, a large thickness unevenness, and a large aspheric amount.
- An object is to provide a resin composition.
- the present invention provides a method for manufacturing a hybrid lens having a thick resin layer, a large thickness unevenness, a large aspherical amount, and a high performance hybrid lens.
- Another object of the present invention is to provide a high-performance hybrid lens having a thick resin layer, a large thickness unevenness, a large aspheric amount, and a high performance.
- a further object of the present invention is to provide a lens system using a high-performance hybrid lens having such a large amount of aspherical surface. Disclosure of the invention
- the present invention firstly provides a resin composition used for a resin layer of a hybrid lens formed by bonding a resin layer to a glass lens base material, wherein a radical polymerizable monomer and a silane cup are used.
- a resin composition for a hybrid lens comprising: a ring agent.
- the silane coupling agent not only can improve the adhesion between the glass lens base material and the resin layer, but also when the resin layer is softened to reduce the stress on the glass lens base material due to polymerization shrinkage. It is possible to improve the surface hardness of the resin layer, which is an obstacle to the performance, and to provide practicality. As a result, it has become possible to manufacture a high-performance hybrid lens that has a thick resin layer, has a large thickness deviation, and can increase the amount of aspherical surface.
- the present invention provides the resin composition for a hybrid lens according to the first resin composition, wherein the radically polymerizable monomer contains the following component A and component B: I will provide a.
- a component a di (meth) acrylate compound represented by the following general formula (I)
- R 1 is hydrogen or a methyl group, m is an integer of 2 to 5, and n is an integer of 1 to 16.
- Component B Mono (meth) acrylate compound represented by the following general formula (II)
- R 2 represents hydrogen or a methyl group
- R 3 represents an alicyclic hydrocarbon group having 5 to 16 carbon atoms.
- the di (meth) acrylate compound of component A softens the resin layer and accompanies polymerization shrinkage. It has the function of reducing stress on the glass lens base material and imparting durability, and the mono (meth) acrylate compound of component B has the function of improving the surface accuracy required for a hybrid lens.
- these acrylate compounds as radical polymerizable monomers, it is possible to manufacture a high-performance hybrid lens that has a thick resin layer, has large unevenness in wall thickness, and can increase the amount of aspheric surface. is there.
- the present invention provides a resin composition for a hybrid lens, wherein the radical polymerizable monomer further comprises the following component C in the second resin composition for a hybrid lens.
- Component C urethane boro (meth) acrylate which has two or more (meth) atalyloyloxy groups in one molecule or epoxy poly which has two or more (meth) acryloyl oxy groups in one molecule Meta) Atarilate
- the present invention relates to the second resin composition for a hybrid lens, wherein the content of the component A is 30 to 90 parts by weight, and the content of the component B is 5 to 40 parts by weight.
- a resin composition for a hybrid lens characterized in that:
- the resin layer is softened, the stress on the glass lens base material due to the polymerization shrinkage is reduced, and the required surface accuracy can be secured. It is possible to manufacture a high-performance hybrid lens having a resin layer, a large thickness unevenness, and a large amount of aspherical surface.
- the present invention provides a resin composition for a hybrid lens, wherein the content of the component C is 5 to 50 parts by weight in the third resin composition for a hybrid lens. I do. '
- the resin layer can be given the necessary heat resistance and the hardness can be improved.
- the present invention provides, in the first resin composition for a hybrid lens, a resin composition for a hybrid lens, wherein the content of the silane coupling agent is 1 to 10 parts by weight. provide.
- the content of the silane coupling agent is too small, the effect may not be exhibited. If the content is too large, the polymerization reaction proceeds rapidly, and the workability of injecting into the cavity is extremely high. In some cases.
- a glass lens base material and a glass mold having a diameter substantially the same as the glass lens base material and transferring an aspherical shape are arranged to face each other, and an adhesive tape is attached to these side surfaces.
- a method for assembling a hybrid lens mold by sealing the gap between the glass lens base material and the glass mold by mounting the hybrid lens mold.
- ultraviolet rays can be irradiated from both sides of the glass lens base material and the glass mold.
- a thick part can be supplied with a sufficient amount of ultraviolet rays to the center, so that the occurrence of polymerization distortion is suppressed and the resin layer peels or cracks. Is suppressed, and the occurrence of optical distortion is also suppressed. Thereby, a thick resin layer can be formed.
- a glass mold having substantially the same diameter as the glass lens base material is arranged oppositely, and an adhesive tape is adhered to these side surfaces to seal a gap between the glass lens base material and the molding die, and to perform a hybrid operation.
- a cavity capable of forming a thick resin layer can be easily formed by an adhesive tape sealing method for assembling a lens mold.
- the adhesive tape does not block ultraviolet irradiation from both sides, it is possible to irradiate a sufficient amount of ultraviolet light even at the periphery of the resin layer, and to form a thick m-layer on the periphery. However, the occurrence of polymerization distortion can be suppressed.
- the present invention provides the method for manufacturing a hybrid lens according to the seventh aspect, wherein a maximum thickness of a gap between the glass lens base material and the glass mold is in a range of 1 to 1 Omm, And a ratio of a maximum thickness and a minimum thickness of a gap between the glass lens base material and the glass mold is 4 or more and 20 or less.
- ultraviolet rays can be irradiated from both sides of the glass lens base material and the glass mold, so that a sufficient amount of ultraviolet rays can be supplied to the center even in a thick portion.
- the occurrence of polymerization distortion can be suppressed as much as possible with respect to the ultraviolet-curable resin composition filled in a thick cavity having a large uneven thickness, and the occurrence of peeling and cracking can be suppressed, and the optical Since a large distortion is suppressed, it is possible to form a thick resin layer having a large thickness difference.
- Ninth aspect of the present invention is the method for manufacturing a hybrid lens according to the seventh aspect, wherein, after the mold assembling step, the space between the glass lens base material and the glass mold is filled with an ultraviolet curable resin composition. Irradiating ultraviolet rays from both sides of the glass lens base material and the glass mold to the ultraviolet-curable resin composition filled in the gap between the glass lens base material and the glass mold, and curing the ultraviolet rays. And a curing step of curing the reactive resin composition.
- the ninth method for manufacturing a hybrid lens after the curing step, the glass is heated to a temperature equal to or higher than a glass transition temperature of a cured product of the ultraviolet-curable resin composition.
- a method for manufacturing a hybrid lens comprising an annealing step of applying a pressure such that a lens base material and the glass mold are brought close to each other.
- the present invention provides, in an eleventh aspect, in the ninth hybrid lens manufacturing method, a pre-curing step of irradiating ultraviolet rays to gel the ultraviolet-curable resin composition before the curing step.
- a method for producing a hybrid lens comprising:
- the polymerization can proceed uniformly, thereby reducing polymerization distortion. Generation can be further suppressed.
- the present invention provides, in a twelfth aspect, in the seventh method for producing a hybrid lens, wherein the glass lens base material treated with a silane coupling agent is used.
- a method for manufacturing a hybrid lens is provided.
- the present invention relates to a glass lens preform having a resin layer formed from a resin composition for a hybrid lens containing a radically polymerizable monomer and a silane coupling agent on the surface of a glass lens base material.
- a resin composition containing a silane coupling agent it has become possible to manufacture a high-performance hybrid lens that has a thick resin layer, has a large thickness unevenness, and can increase the amount of aspherical surface. .
- the present invention provides, in a fifteenth aspect, in the above-mentioned thirteenth hybrid lens, wherein a maximum thickness of the resin layer is in a range of 1 to 10 mm.
- the present invention provides, in a fifteenth aspect, a hybrid lens according to the fifteenth hybrid lens, wherein a ratio of a maximum thickness and a minimum thickness within an effective diameter of the resin layer is 4 or more and 20 or less. provide.
- the present invention provides, in a sixteenth aspect, a hybrid formed by bonding a resin layer formed from a resin composition for a hybrid lens containing a radically polymerizable monomer and a silane coupling agent to a surface of a glass lens base material.
- a lens system characterized by using a lens is provided.
- the number of lenses required for aberration correction can be reduced, and a high-performance and compact projection lens can be constructed.
- the present invention provides, in a seventeenth aspect, a lens system according to the sixteenth lens system, wherein the maximum thickness of the resin layer of the hybrid lens is in a range of 1 to 10 mm. I do.
- the resin composition for a hybrid lens of the present invention can be used to form a resin layer of a hybrid lens in which an aspherical resin layer is formed on a spherical glass lens.
- the method for producing a hybrid lens of the present invention can be used for producing a high-performance hybrid lens having a thick resin layer, having a large thickness unevenness and a large aspherical amount.
- the hybrid lens of the present invention is a high-performance aspheric lens that has a thick resin layer, has a large unevenness in wall thickness, and can increase the amount of aspheric surface. Therefore, for example, as a lens constituting a projection lens for a liquid crystal projector, Can be used.
- the optical system of the present invention uses a high-performance hybrid lens that has a thick resin layer, has a large thickness unevenness, and can increase the amount of aspherical surface. You can use it.
- FIG. 1 is a cross-sectional view illustrating an embodiment of a hybrid lens of the present invention.
- FIGS. 2 (a) to 2 (d) are flowcharts showing steps of a method for manufacturing a hybrid lens of the present invention.
- FIGS. 3 (e) to (g) are flow charts showing steps of a method for producing a hybrid lens of the present invention.
- FIG. 4 is a cross-sectional view illustrating a configuration of a projection lens as an example of the optical system of the present invention.
- FIG. 5 is an aberration diagram of the projection lens of FIG. 4; BEST MODE FOR CARRYING OUT THE INVENTION
- the resin composition for a hybrid lens of the present invention is used for forming a resin layer of a hybrid lens in which an aspherical resin layer is formed on a spherical glass lens.
- the resin composition for a hybrid lens of the present invention contains a radically polymerizable monomer and a silane coupling agent.
- the radical polymerizable monomer is a main component that forms a resin layer of a hybrid lens by radical polymerization and curing.
- the radically polymerizable monomer in the present invention preferably contains, as the A component, a di (meth) acrylate compound represented by the following general formula (I).
- R 1 represents a hydrogen or a methyl group
- m represents an integer of 2 to 5
- n represents an integer of 1 to 16.
- the di (meth) acrylate compound represented by the general formula (I) of the component A is a main component of the resin composition for a hybrid lens of the present invention. It has the function of reducing stress on the lens base material and providing durability.
- di (meth) atalylate compound represented by the general formula (I) examples include ethylene glycol di (meth) atalylate, diethylene glycol di (meth) atalylate, triethylene glycol di (meth) atalylate, tetra Polyethylene glycols such as ethylene glycolone resin (meth) acrylate, pentaethylene glycol di (meth) acrylate, and nonaethylene glycol di (meth) acrylate Recall di (meth) acrylates; propylene glycol di (meth) acrylate, dipropylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, tetrapropylene glycol di (meth) acrylate, nona Poly (propylene glycol) di (meth) atalylate and other polypropylene glycolone di (meth) atalylate compounds; butylene glycol di (meth) atalylate, dibutylene glycol di (me)
- Atharylate compounds 1,3-butylendalichol di (meth) atalylate, 1,6-hexamethylene glycol di (meth) atalylate, 1,14-tetradecamethylene glycol di (meth) ately And dipentylglycol di (meth) atarylate, a di (meth) acrylate compound of a dipromethanone adduct of hydroxypivalate neopentylglyconolate, and the like.
- the content of the ⁇ component in the resin composition for a hybrid lens of the present invention is preferably 30 to 90 parts by weight, particularly preferably 50 to 80 parts by weight. If the content of the component A is too small, the resin layer cannot have sufficient flexibility, and the heat resistance corresponding to the environmental temperature change is insufficient: Yes, and the water absorption may not be suppressed. On the other hand, if the content is too large, the surface hardness may be significantly reduced.
- the radical polymerizable monomer in the resin composition for a hybrid lens of the present invention preferably contains a mono (meth) atalylate compound represented by the following general formula (II) as a B component.
- R 2 represents hydrogen or a methyl group
- R 3 represents an alicyclic hydrocarbon group having 5 to 16 carbon atoms.
- the mono (meth) acrylate compound represented by the general formula (II) of component B is It has a function to improve the surface accuracy required as a hybrid lens of the resin layer formed.
- mono (meth) acrylate compounds include cyclopentyl (meth) acrylate, cyclohexyl (meth) acrylate, trimethylcyclyl hexynole (meth) acrylate, norpolnil (meth) acrylate, isovolur (meta).
- Akurireto mention may be made Adamanchiru (meth) Akurireto, Jishiku port Penteyuru (meth) Atari rate, tricyclo (5, 2, 1, 0 2 '6> decane one 8- I le (meth) Atari rate.
- the content of the B component in the resin E composition for a hybrid lens of the present invention is preferably 5 to 40 parts by weight, particularly preferably 10 to 30 parts by weight. If the content of the component B is too small, it may not be possible to obtain sufficient surface accuracy. On the other hand, if the content is too large, the heat resistance of the lens may be reduced.
- the radical polymerizable monomer in the resin composition for a hybrid lens of the present invention includes, as a C component, urethane poly (meth) acrylate having two or more (meth) acryloyloxy groups in one molecule or in one molecule. It is preferable to contain an epoxy poly (meth) atalylate having two or more (meth) atalyloyloxy groups.
- the component C is a component that imparts heat resistance to the resin layer and gives appropriate hardness.
- Urethane poly (meth) acrylates containing two or more (meth) atalyloyloxy groups in one molecule of the C component include (meth) acrylates containing hydroxyl groups and two or more isocyanates in the molecule. And urethanation reaction products with an isocyanate compound having a group.
- polyisocyanate compound having a polyisocyanate group having at least two isocyanate groups in the molecule include aliphatic, aromatic or alicyclic isocyanates such as tetramethylene diisocyanate, Hexamethylene diisocyanate, 2,2,4-trimethylene hexamethylene diisocyanate, cyclohexane diisocyanate, isophorone diisocyanate, tolylene diisocyanate, xylylene diisocyanate, 1,3-bis (a, a 'methyldiisocyanate methyl) benzedi, diphenylmethane diisocyanate, in-phenylenediisocyanate, dicyclohexylmethane diisocyanate, naph Talendylene isocyanate, biphenyl diisocyanate and the like.
- aliphatic, aromatic or alicyclic isocyanates such as tetramethylene diisocyanate, Hex
- Epoxy poly (meth) acrylates having two or more (meth) atalyloyloxy groups in one molecule include epoxy compounds having two or more glycidyl groups in a molecule, and (meth) acryl.
- Examples of the glycidyl ring-opening reaction product with an acid or a compound having a (meth) atalyloyloxy group and a carboxyl group in the molecule include c having at least two glycidyl groups in the molecule used in the above-described ring opening reaction.
- Epoxy compounds include 1,6-hexanediol diglycidyl ether, ethylene glycol / regisglycidinoleatene, diethyleneglyconoresinglycidinoleatene, triethyleneglycol-resinglycidinoleatene, tetraethylene glycol Ethylene glycol diglycidyl ether, nonaethylene glycolone resin glycidinoleate , Propylene glycolone resin glycidinoleate, dipropylene glycolone resin glycidinoleate, triethylene glycol / resinglycidinoleatene, tetraethylene glycolone diglycidyl ether, nonapropylene glycol diglycidyl ether, neo pent Noreglycol ⁇ Regiglycidinoleatenole, neopentinoleglycose hydrohydroxypivalate diglycidyl ether, trimethylolpropanedigly
- Compounds to be reacted with these epoxy compounds include acrylic acid, methacrylic acid, and a carboxy group-containing compound obtained by reacting hydroxyxyl (meth) acrylate with an acid anhydride such as o-phthalic anhydride.
- the reaction between the epoxy compound and the carboxyl group-containing (meth) acrylate is carried out, for example, by mixing the two to form a tertiary amino compound such as dimethylaminoethyl methacrylate or a quaternary compound such as benzyltrimethylammonium chloride as a catalyst. This is done by adding the amine salt and heating to 60 ° C to 110 ° C.
- urethane poly (meth) acrylate or epoxy poly (meth) acrylate can be used alone or in combination of two or more.
- ⁇ As ethanepoly (meth) acrylate, isophorone disocyanate, 2,2,4-trimethylhexamethylene disocyanate, dihexyl hexyl methane disocyanate, xylylene diisocyanate Netto, 1,3-bis ( ⁇ , a'-dimethylisocyanatemethyl) benzene, tolylene diisocyanate or naphthalene diisocyanate, and 2-hydroxypropyl (meth) atarylate Addition of Are preferred.
- epoxy poly (meth) acrylates 1,6-hexanediol diglycidinoleate, diethyleneglycol-diglycidinoleate, trimethylonolepropane diglycidinoleatene, trimethylonelepropane Liglycidyl ether, glycerol mono-triglycidyl ether, tris (2-hydroxyxyl) isocyanurate triglycidyl, 2,2-bis (4-glycidyloxycyclohexyl) propane, bisphenol A diglycidyl ether, It is particularly preferred to use the reaction product of bisphenol S diglycidyl ether or tetrabromobisphenol A diglyzyl ether with acrylic acid or methacrylic acid.
- the content of the component C in the resin composition for a hybrid lens of the present invention is preferably in the range of 0 to 50 parts by weight, particularly 5 to 50 parts by weight, and most preferably 10 to 30 parts by weight. If the hybrid lens does not require much heat resistance, it need not be contained. In order to provide appropriate heat resistance, the content is preferably in the above range. If the content is too large, the resin layer may be too hard and the glass lens base material may be broken, and the viscosity of the composition may be increased, and the workability by casting may be reduced.
- the silane coupling agent which is an essential component of the resin composition for a hybrid lens of the present invention, is a component that imparts adhesion between the glass lens base material and the resin layer. At the same time, it is a component that improves the surface hardness of the resin layer and imparts practicality. That is, by blending the di (meth) acrylate compound of the component A, the resin layer is softened, stress on the glass lens mother neo due to polymerization shrinkage is reduced, durability is given, and a thick resin layer is formed. In addition, while it is possible to produce a high-performance hybrid lens that has a large thickness deviation and a large amount of aspherical surface, it has a function to compensate for the lack of practicality due to too low surface hardness.
- the silane coupling agent generally has a structure having, in the same molecule, an organic functional group having a substituent binding to an organic material and a hydrolyzable group reacting with an inorganic material.
- Organic functional groups include butyl, glycidoxy, methacryl, amino, and mercapto groups, and hydrolyzable groups are mainly chlorine and alkoxy groups.
- Specific examples of the silane coupling agent include butyltrichlorosilane and butyltriethoxysila.
- the content of the silane coupling agent in the composition for a hybrid lens of the present invention is preferably 1 to 10 parts by weight, particularly preferably 3 to 5 parts by weight. If the content is too small, the effect may not be exhibited.On the other hand, if the content is too large, self-crosslinking progresses, the monomer solution becomes viscous, and the workability of injection into the cavity is extremely reduced. There are cases.
- Examples of the polymerization initiator used for curing the resin composition for a hybrid lens of the present invention include 2-hydroxy-2-methyl-11-phenylpropane-11-one, methylfurglyoxylate, Photopolymerization initiators such as 4,6-trimethylbenzoyl diphenolenophosphinoxide, bis (2,4,6-trimethinolebenzimere) -furphosphinoxide, benzoyl peroxide, t one Petit Honoré Per O carboxylate isobutyrate, t-Buchirupaokishi organic peroxides such Kisano benzoate into single 2-Echinore, 2, 2, over ⁇ zone bis Petit nitrile, 2, 2 5 Azo bis (2, 4 —Dimethylvaleronitrile) and the like.
- Photopolymerization initiators such as 4,6-trimethylbenzoyl diphenolenophosphinoxide, bis (2,4,6-trimethinolebenzimere) -furphosphinoxide, benzoyl per
- polymerization initiators it is more preferable to use a photopolymerization initiator to form an ultraviolet-curable resin composition since the curing speed is high and room-temperature curing is possible.
- These polymerization initiators may be used in one kind or in a mixture of two or more kinds, and a co-catalyst and a sensitizer may be added in order to improve the curing speed.
- the mixing ratio of the polymerization initiator is usually 0.005 to 5 parts by weight with respect to the total of 1;
- the resin composition for a hybrid lens of the present invention may contain, if necessary, additives such as an antioxidant, a yellowing inhibitor, an ultraviolet absorber, a dye, and a pigment within a range that does not impair the effects of the present invention. Is also good.
- the resin composition for a hybrid lens of the present invention comprises: a radical polymerizable monomer component;
- the silane coupling agent can be prepared by mixing and stirring in a conventional manner, and further mixing various additives as necessary.
- the resin composition for a hybrid lens of the present invention contains a silane coupling agent, not only can the adhesion between the glass lens base material and the resin layer be improved, but also the resin for a hybrid lens can be improved.
- the resin layer is softened by using a di (meth) acrylate compound represented by the general formula (I) as a main component. It is possible to improve the surface hardness of the resin layer, which becomes an obstacle when it is used, and to provide practicality.
- the transfer accuracy of the aspherical surface can be improved by containing the mono (meth) acrylate compound represented by the general formula (II) of the component B. Therefore, it is possible to manufacture a high-performance hybrid lens having a thick resin layer, a large thickness unevenness, and a large aspherical amount.
- the hybrid lens of the present invention as shown in FIG. 1 can be manufactured.
- the hybrid lens 1 has a structure in which a resin layer 3 having an aspheric outer surface is joined to one or both surfaces of a spherical glass lens base material 2.
- the spherical glass lens base material 2 may be either a convex lens or a concave lens.
- the resin layer 3 has a thickness of about 10 mm, preferably 2 to 8 mm, and is thicker than a conventional hybrid lens.
- the thickness of the resin layer 3 means the thickness of the glass lens base material 2 in the normal direction.
- the ratio of the minimum thickness T mi n Z the maximum thickness T ma x range in the resin layer 3 of the effective diameter of the lens 1 to 4, i.e., by defining the thickness deviation amount T ma x / T rai n ,
- the thickness deviation is preferably 4 or more, more preferably 5 or more, and the upper limit is 20. If the thickness deviation is too small, the aspherical amount of the resin layer 3 will be small, and the degree of improvement in optical performance as an aspherical lens will be small. On the other hand, if the thickness deviation exceeds 20, the lens shape becomes complicated, and production is difficult.
- the thickness of the resin layer 3 is thicker than before, but also The diameter can be as large as about 60 to 15 O mm.
- No conventional hybrid lens has a large aperture of 6 O mm or more.
- the hybrid lens 1 of the present invention has a thick resin layer and can increase the amount of aspherical surface, it has excellent aberration correction capability and a large aperture. Since higher aberration correction capability can be obtained as compared with the conventional hybrid lens, the number of lens components can be further reduced, and a compact and lightweight optical system can be realized.
- Applications include, for example, projection lenses for liquid crystal projectors, especially the most objective lens, video camera and still camera lenses, copiers, laser printers, telescopes, binoculars, microscopes, and optical pickups for CDs and DVDs. It can be used for lenses for applications.
- a method for manufacturing a hybrid lens according to the present invention which is suitable for manufacturing a high-performance hybrid lens having a thick resin layer as shown in FIG. This will be described with reference to FIGS. 2 and 3.
- the method for producing a hybrid lens of the present invention it is preferable to use the above-described resin composition for a hybrid lens of the present invention.
- the resin composition for a hybrid lens of the present invention and the method for manufacturing a hybrid lens of the present invention, a high-performance resin having a thick resin layer, a large thickness unevenness, and a large aspherical amount can be obtained.
- a hybrid lens can be easily manufactured.
- another resin composition may be used.
- the method for producing a hybrid lens according to the present invention includes: (a) a mold processing step, (b) a mold assembling step, (c) a pouring step, (d) a pre-curing step, (e) a curing step, and (f) annealing. And (g) a releasing step.
- the molding die processing step selects the glass lens preform 2 and the glass mold 4 necessary for forming the hybrid lens, and performs the necessary pre-processing. It is a process.
- the glass lens base material 2 is a lens whose both surfaces are mirror-polished to a spherical surface that is easily polished, and may be a convex lens or a four lens.
- the surface on which the resin layer is formed is referred to as a molding surface 21.
- the glass lens base material 2 shown in FIG. 1 and FIG. 2 (a) shows the one used as a concave lens on the most objective side of a projection lens for a liquid crystal projector. Therefore, the molding surface Numeral 21 is formed on the entire convex side of the glass lens base material 2, and the concave spherical surface facing the molding surface 21 is smaller than the molding surface 21 and has a large curvature.
- the outer peripheral side of the concave surface is formed on a plane orthogonal to the optical axis.
- the material of glass' is determined in consideration of the refractive index and the dispersibility.
- the glass mold 4 has a transfer surface 41 for transferring an aspherical shape and an outer surface 42 facing the transfer surface 41, and the transfer surface 41 is mirror-polished. In the glass mold 4 shown in FIG. 2A, the outer surface 42 facing the transfer surface 41 is flat.
- the outer diameters of the glass lens base material 2 and the glass mold 4 are substantially the same, and both have circumferential side surfaces.
- the outer diameters of the glass lens base material 2 and the glass mold 4 are generally in the range of 30 to 15 Omm.
- the molding surface 21 on which the resin layer of the glass lens base material 2 is formed is washed, and a liquid containing, for example, the above-described silane coupling agent is applied to the molding surface 21 for the purpose of improving the adhesion of the resin layer 3. Then, dry and bake.
- the application of the silane coupling agent may not be necessary when the silane coupling agent is mixed into the resin composition for a hybrid lens, but depending on the glass material, the silane coupling treatment of the glass lens base material may be necessary.
- the resin composition for a hybrid lens does not contain a silane coupling agent, necessary adhesiveness may not be obtained.
- the transfer surface 41 of the glass mold 4 be cleaned and coated with a release agent in advance. By applying a release agent to the transfer surface 41, the glass mold 4 can be easily separated from the resin layer after molding.
- a (b) die assembly process is performed. Hold the glass mold 4 horizontally with the transfer surface 1 of the glass mold 4 facing up, and face the transfer surface 41 of the glass mold 4 with the molding surface 21 of the glass lens base material 2 down at a predetermined distance. Arrange and hold c Then, an adhesive tape 5 is wound around the glass lens base material 2 and the side surface of the glass mold 4, and it is wound more than one round to form an area where the adhesive tape 5 overlaps. You. By winding the adhesive tape 5, the glass lens preform 2 and the glass mold 4 are fixed to each other, and the gap between the molding surface 21 of the glass lens preform 2 and the transfer surface 41 of the glass mold 4 is sealed. Is stopped.
- the cavity 6 has a maximum thickness of a gap between the molding surface 21 of the glass lens preform 2 and the transfer surface 41 of the glass mold 4 in the normal direction of the molding surface 21 of the glass lens preform 2.
- the effective diameter of the lens it is 1 mm to 1 Omm, preferably 2 to 8 mm, and the minimum thickness is 1 Z4 or less of the maximum thickness, preferably about lZsi / s0.
- the adhesive tape 5 has a structure in which an adhesive layer is formed on a tape base material.
- the tape base material include polyolefins such as polyethylene and polypropylene, polyhalogenated bulbs such as polyvinyl chloride and polyvinylidene chloride, polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, polyamides, and the like.
- polyimides and polycarbonates Acrylic, rubber, silicone, etc. are used as the adhesive.
- An adhesive that does not dissolve into the ultraviolet curable resin composition or inhibit polymerization is selected.
- the thickness of the tape base material must be at least 10 ⁇ , preferably at least 20 ⁇ , and optimally at least 3, since it is required that the glass mold 4 and the glass lens base material 2 can be accurately fixed in the mold assembly process. It is preferable that it is not less than 0 ⁇ .
- the maximum thickness is about 2000 m.
- the width of the adhesive tape 5 only needs to be able to hold the side surfaces of the glass lens base material 2 and the glass mold 4 and seal the gap between them, and may be as wide as protruding therefrom.
- the glass lens base material 2 and the glass mold 4 are arranged to face each other, and an adhesive tape 5 is adhered to these side surfaces to seal a gap between the glass lens base material 2 and the glass mold 4 to form a hybrid lens mold 7.
- the adhesive tape sealing method for assembling the above can easily and simply form a thick cavity compared to the method of holding the glass lens base material 2 and the glass mold 4 using the conventional sleeve ⁇ form. .
- a (c) implantation step is performed.
- the part where the adhesive tapes 5 overlap is peeled off to form a small opening to the cavity 6, and through this opening through a thin injection tube 8 such as an injection needle, ultraviolet curing prepared in advance in the monomer compounding process Injectable resin composition 9 into cavity 6 and peeled off adhesive tape 5 Corrected paper (parent regulation 91) And seal the cavity 6 again.
- a (d) pre-curing step is performed.
- Preliminary irradiation with ultraviolet light makes the polymerization uniform and suppresses the occurrence of polymerization distortion, which is effective for forming a thick resin layer.
- the preliminary irradiation is performed by irradiating ultraviolet rays using an ultraviolet irradiation source such as a high-pressure mercury lamp or a metal halide lamp.
- the irradiation time 2-2 0 seconds and at room temperature without heating, the intensity of ultraviolet rays Ri 1 0 0 to 1 4 0 W about der, irradiation amount is 0. 0 5 ⁇ 3 0 J / cm 2 of about .
- the ultraviolet-curable resin composition 9 gels.
- the preliminary irradiation may be performed by irradiating ultraviolet rays through a glass mold 4, irradiating ultraviolet rays through a glass lens base material 2, or by irradiating from both sides.
- the pre-curing step may not always be necessary and can be omitted.
- a (e) curing step is performed.
- the ultraviolet curable resin composition 9 in the cavity 6 is irradiated with ultraviolet rays from both sides through the molds 2 and 4 on both sides using the glass mold 4.
- An ultraviolet irradiation source such as a high-pressure mercury lamp or a metal halide lamp is placed on both sides of the molds 2 and 4, or the interior cavity 6 is cured through both the glass mold 4 and the glass lens base material 2 using a reflector.
- the ultraviolet curable resin composition 9 is irradiated with ultraviolet rays to cure the ultraviolet curable resin composition 9 almost completely.
- the irradiation time of the ultraviolet ray may be 50 to 300 seconds, the ambient temperature may be room temperature, or the heating may be performed in a heating atmosphere up to 120 ° C.
- the irradiation intensity of ultraviolet rays is about 50 to 15 O mW for UV 2 from the glass mold 4 side, and 50 to 15 O mW for UV 3 from the glass lens base material 2 side, irradiation on both sides. Preferably, the strengths are approximately equal.
- Dose of ultraviolet is not particularly limited, and 1 to 5 0 0 J Roh cm 2. Irradiation with ultraviolet rays may be performed alternately from both sides.
- a thick resin layer could not be formed on the glass lens base material because the resin layer became thicker and the uneven thickness difference between the thin and thick parts of the resin layer increased, causing polymerization by ultraviolet rays.
- the polymerization rate of the thick part and the thin part of the resin layer are different, so polymerization distortion occurs in the resin layer, and the polymerization distortion easily causes peeling and cracking of the resin layer, and also causes optically
- the optical performance of the resin layer may deteriorate due to refraction. Is considered to be a factor.
- the molding die for transferring the aspherical shape paired with the glass lens base material 2 is called the glass mold 4,
- the glass mold 4 By irradiating ultraviolet light from both sides through the glass mold 4 and the glass lens base material 2, it is possible to sufficiently irradiate ultraviolet light to the center of the ultraviolet curable resin composition 9 filled in the thick cavity 6 c the result is, to equalize the rate of polymerization in the thick portion and thin portion of Kiyabiti 6 can be suppressed as much as possible the Warabegoibitsu Mino generation.
- the adhesive tape 5 is thin, is adhered to the side surfaces of the glass mold 4 and the glass lens base material 2, and can be made light-transmitting, so that it does not obstruct ultraviolet irradiation from both sides, and the cavities 6 Can be sufficiently irradiated to the peripheral portion of the substrate. Therefore, even if the resin layer 3 has a thin center part and a thick peripheral part as shown in Fig. 1, it contributes to uniform polymerization speed of the entire cavity 6 and suppression of polymerization distortion. it can.
- the (f) annealing step is performed.
- the purpose of this annealing step is to remove polymerization distortion and improve transfer accuracy.
- Cured product of UV-curable resin composition (resin layer) In a temperature atmosphere higher than the glass transition point of 3, preferably in a temperature atmosphere higher than the glass transition point by 10 ° C or more, glass mold 4 and glass lens base material Pressure is applied to bring the two close together. Thereby, the glass mold 4 is pressed and pressed while the cured product 3 is softened, and the shape of the transfer surface 41 of the glass mold 4 is sufficiently pressed against the cured product, whereby the transfer accuracy is improved. At the same time, it is possible to remove polymerization strain by annealing.
- the annealing treatment is performed, for example, by arranging the hybrid lens mold 7 with the glass lens base material 2 on the lower side and the glass mold 4 on the upper side in an autoclave, and 3 ⁇ 10 ′′ 3 to 1 in the above temperature atmosphere.
- 0 X 10 "Apply a pressure of about 3 atm and process for about 30 minutes to 2 hours. Pressing mechanically brings the glass mold 4 and the glass lens preform 2 closer together. Of course, it is also possible to carry out by applying a certain pressure. Further, the heat treatment may be performed simply in a heating furnace without applying pressure. An annealing step is not always necessary. After the glass mold 4 is released, annealing only by heating may be performed. Next, as shown in FIG.
- the hybrid lens 1 has a structural feature in which the edge of the resin layer 3 and the edge of the glass lens preform 2 are matched by employing the adhesive tape sealing method.
- the (f) annealing step and (g) release step can be interchanged as necessary.
- the obtained hybrid lens 1 is subjected to a hard coating process and / or an anti-reflection film forming process to impart a scratch resistance to the resin layer 3 as necessary, and an anti-reflection film is formed on the glass lens base material 2. Processing can be performed.
- TCDM Tricyclo (5, 2, 1, 0 2 ' 6 ) decane-1 8-yl methacrylate'
- CHM Cyclohexyl methacrylate
- UDM1 Urethane dimethacrylate obtained by reacting isophorone diisocyanate with 2-hydroxypropyl methacrylate
- UDA2 Urethane diacrylate obtained by reacting tolylene diisocyanate with 2-hydroxyethyl acrylate
- EDM 1 Epoxy dimethacrylate obtained by reacting bisphenol A diglycidyl ether with methacrylic acid
- the above-mentioned resin composition for a hybrid lens was injected into the hybrid lens mold.
- the hybrid lens mold into which the resin composition for a hybrid lens was injected was put into a UV irradiator that was adjusted to irradiate from both sides of the hybrid lens mold with a UV lamp having an irradiation intensity of 100 W, and 600 OmJcm 2
- the resin layer was cured by irradiation with ultraviolet rays.
- the glass mold was released and heated at 135 ° C. for 1 hour for annealing.
- a SiO 2 Zr 02 antireflection film was deposited on the resin surface by vapor deposition.
- the hybrid lens manufactured in this manner was evaluated by the following evaluation method and is shown in Table 1.
- Solvent resistance The surface of the antireflection film was rubbed 10 times with lens cleaning paper (trade name: Dasper, manufactured by Ozu Paper Industry Co., Ltd.) impregnated with an alcoholic organic solvent, and the appearance was visually observed. Those with no change were evaluated as good.
- lens cleaning paper trade name: Dasper, manufactured by Ozu Paper Industry Co., Ltd.
- Transferability The transferability of the lens surface from which the glass mold was released was visually determined.
- Injection workability Difficulty in injecting the hybrid lens resin composition into the hybrid lens mold was determined.
- test pieces A resin composition prepared in the same manner as the resin composition shown in the examples was molded into a disk-shaped flat plate with a thickness of 2 mm or 5 mm and an outer diameter of 75 mm. Next, the following measurement was performed.
- Refractive index The refractive index of the test piece prepared above at 25 ° C was measured using an Abbe refractometer.
- Pencil hardness was measured.
- Temperature cycle test Put the obtained hybrid lens in a small environmental tester (SH-220 type, manufactured by Tabai Espec Co., Ltd.), and leave it at a low temperature of 30 ° C for 2 hours.
- SH-220 type manufactured by Tabai Espec Co., Ltd.
- Solvent resistance Lens cleaning paper impregnated with alcoholic organic solvent (Ozu The surface of the antireflection film was rubbed 10 times with a paper industry (trade name: Dasper), and the appearance was visually observed. Those with no change were evaluated as good.
- Adhesion The operation of bonding an adhesive tape (Nichiban Co., Ltd .: Cellotape CT-12) to the surface of the antireflection film and peeling it was repeated three times, and the appearance was visually observed. Those with no change were considered good.
- the lens was manufactured in the same manner as in Example 1 except for the change of the glass material of the glass lens base material and the presence or absence of the base treatment using the silane coupling agent. was manufactured and evaluated. The results are shown in Table 1.
- the lens was manufactured in the same manner as in Example 1 except for the change of the glass material of the glass lens base material and the presence or absence of the base treatment using the silane coupling agent. was manufactured and evaluated. The results are also shown in Table 2.
- the lens was manufactured in the same manner as in Example 1, except for the change of the glass material of the glass lens base material and the presence or absence of the base treatment using the silane coupling agent. was manufactured and evaluated. The results are also shown in Table 3. ⁇ table 1 ⁇
- the hardness of the hybrid lens obtained using the hybrid lens resin composition containing no silane coupling agent was 2 B since the A component was the main component. And the hardness is insufficient. Even when the glass lens base material is treated with a silane coupling agent, the adhesion between the glass lens base material and the resin layer is insufficient.
- FIG. 4 is a cross-sectional view of a lens system in which the hybrid lens 1 of the present invention as shown in FIG. 1 is employed as a projection lens 100 for a liquid crystal projector.
- the code indicated by R i (i is an integer from 1) indicates the lens surface number in order from the enlargement side to the reduction side, and the code indicated by di (i is an integer from 1) is reduced from the enlargement side
- ⁇ indicates the center thickness of the lens on the ray axis and the air gap (mm) between the lenses.
- G 1 indicates the first lens group
- G 2 indicates the second lens group.
- a color synthesizing unit 110 such as a dichroic prism synthesizes three colors that have passed through three display devices such as a liquid crystal display device, and is shown as a block.
- Table 4 shows the design data of the lens system in Fig. 4.
- Table 4 shows the radius of curvature R (mm) of each lens surface R i in the lens cross-sectional view in Fig. 4, the center thickness of each lens, the air gap di (mm) between each lens, and the order from the enlargement side to the reduction side.
- the refractive index N d and the Abbe number V d of the i-th optical material with respect to the d-line are shown.
- the lower part of Table 4 shows k, A 4 , A 6 , A 8 , and A 10 of the aspheric coefficient in the following aspheric surface equation.
- z is the coordinate value of the curved surface
- r is the distance from the optical axis in a direction orthogonal to the optical axis
- c is the curvature at the lens vertex
- k, A 4 , A 6 , A 8 and A 10 are aspherical coefficients, respectively.
- FIG. 5 shows an aberration diagram of the projection lens of FIG.
- the spherical aberration diagram of the aberration diagram In addition, aberrations for the C-line, 'd-line, and g-line are shown, and in the astigmatism diagram, aberrations for the sagittal (S) image plane and the tangential (T) image plane are shown.
- ⁇ indicates a half angle of view.
- the first lens L1 and the second lens L2 that form the first lens group G1 of the projection lens 100 form a hybrid lens, and the first lens L1 is enlarged.
- the first surface facing the side is an aspheric surface having an aspheric surface amount of 0.5 mm or more.
- the resin layer of this hybrid lens has a center thickness of about 0.5 mm and a maximum resin layer thickness of about 5 mm.
- the aperture R 10 is arranged between the second lens L 5 and the third lens L 6 that constitute the second lens group G 2.
- the design specification values are as follows: the angle of view 2 ⁇ is 121 °, the focal length is 6.82, and the distance between the first group G1 and the second group G2 is 53.6 mm. Although it is an ultra-wide-angle lens with an angle of view of 121 degrees, it can be seen from the aberration diagram of FIG. 5 that it has a predetermined optical performance. In addition, since the hybrid lens has a very large aspherical surface, if the aspherical lens is not used, the first lens group G1 requires five lenses, whereas the first lens group G1 requires five lenses. Only two lens groups G1 were required, and three lenses could be reduced. Therefore, the size and cost of the projection lens 100 have been reduced.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002520771A CA2520771A1 (en) | 2003-04-21 | 2004-04-20 | Resin composition for hybrid lens, manufacturing method for hybrid lens, hybrid lens, and lens system |
EP04728465A EP1617240A1 (en) | 2003-04-21 | 2004-04-20 | Resin composition for hybrid lens, method for producing hybrid lens, hybrid lens and lens system |
US10/510,768 US20060012889A1 (en) | 2003-04-21 | 2004-04-20 | Resin composition for hybrid lens, method for producing hybrid lens, hybrid lens and lens system |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003115659 | 2003-04-21 | ||
JP2003-115659 | 2003-04-21 | ||
JP2003-202637 | 2003-07-28 | ||
JP2003202637 | 2003-07-28 | ||
JP2004-022264 | 2004-01-29 | ||
JP2004022264A JP2005060657A (ja) | 2003-04-21 | 2004-01-29 | ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズ及びレンズ系 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004095087A1 true WO2004095087A1 (ja) | 2004-11-04 |
Family
ID=33314024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/005655 WO2004095087A1 (ja) | 2003-04-21 | 2004-04-20 | ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズの製造方法、ハイブリッドレンズ及びレンズ系 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060012889A1 (ja) |
EP (1) | EP1617240A1 (ja) |
JP (1) | JP2005060657A (ja) |
KR (1) | KR100727718B1 (ja) |
CA (1) | CA2520771A1 (ja) |
TW (1) | TWI249555B (ja) |
WO (1) | WO2004095087A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1715980A (zh) * | 2004-07-02 | 2006-01-04 | 鸿富锦精密工业(深圳)有限公司 | 非球面镜片及其制造方法 |
KR20070105040A (ko) * | 2006-04-25 | 2007-10-30 | 엘지.필립스 엘시디 주식회사 | 레지스트 조성물, 이를 이용한 레지스트 패턴 형성방법 및이를 이용하여 제조된 어레이 기판 |
US8000040B2 (en) | 2007-03-29 | 2011-08-16 | Sanyo Electric Co., Ltd. | Imaging lens, manufacturing method thereof, and compound lens |
JP2008268876A (ja) * | 2007-03-29 | 2008-11-06 | Sanyo Electric Co Ltd | 撮影レンズおよびその製造方法ならびに複合レンズ |
US7920342B2 (en) * | 2008-07-01 | 2011-04-05 | Aptina Imaging Corporation | Over-molded glass lenses and method of forming the same |
JP5443772B2 (ja) * | 2009-01-21 | 2014-03-19 | パナソニック株式会社 | 複合光学素子用樹脂組成物および複合光学素子 |
JP5302403B2 (ja) | 2009-07-16 | 2013-10-02 | パナソニック株式会社 | 複合光学素子およびその製造方法、ならびに当該複合光学素子を備えた撮像装置および光学式記録再生装置 |
JP4806063B2 (ja) | 2009-09-30 | 2011-11-02 | シャープ株式会社 | レンズ成形装置およびレンズ成形方法 |
WO2011136139A1 (ja) * | 2010-04-30 | 2011-11-03 | コニカミノルタオプト株式会社 | ウェハレンズ部材の製造方法、撮像レンズの製造方法、撮像モジュールの製造方法及び撮像モジュールを搭載した電子機器の製造方法 |
US8351137B2 (en) * | 2011-03-11 | 2013-01-08 | Himax Technologies Limited | Micro-lens module |
US9042019B2 (en) | 2011-04-15 | 2015-05-26 | Qspex Technologies, Inc. | Anti-reflective lenses and methods for manufacturing the same |
US9335443B2 (en) | 2011-04-15 | 2016-05-10 | Qspex Technologies, Inc. | Anti-reflective lenses and methods for manufacturing the same |
AU2012392166B2 (en) * | 2012-10-10 | 2015-10-29 | Qspex Technologies, Inc. | Anti-reflective lenses and methods for manufacturing the same |
KR102084060B1 (ko) * | 2013-06-21 | 2020-03-04 | 삼성디스플레이 주식회사 | 보호용 윈도우의 제조 방법 및 이를 이용하여 제작한 표시 장치 |
CN106687275A (zh) * | 2014-09-30 | 2017-05-17 | 富士胶片株式会社 | 透镜、透镜的制造方法及投影装置 |
JP6912960B2 (ja) * | 2016-07-20 | 2021-08-04 | 三洋化成工業株式会社 | 硬化性樹脂組成物 |
JP2018083300A (ja) * | 2016-11-21 | 2018-05-31 | ローランドディー.ジー.株式会社 | ポストキュア方法、光造形方法 |
JP2018135512A (ja) * | 2017-02-23 | 2018-08-30 | 三洋化成工業株式会社 | 活性エネルギー線硬化性樹脂組成物 |
JP2018185500A (ja) * | 2017-04-27 | 2018-11-22 | Hoya Candeo Optronics株式会社 | 複合光学素子及びそれを有する走査光学系 |
US11409083B2 (en) * | 2019-01-31 | 2022-08-09 | Canon Kabushiki Kaisha | Composite optical element, optical apparatus and imaging apparatus |
CN113767615B (zh) * | 2020-04-02 | 2023-04-18 | 华为技术有限公司 | 包括广角成像透镜系统和大图像传感器的成像装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03193313A (ja) * | 1989-12-22 | 1991-08-23 | Mitsubishi Rayon Co Ltd | プラスチックレンズの製造方法 |
JPH0931143A (ja) * | 1995-07-17 | 1997-02-04 | Mitsubishi Rayon Co Ltd | プラスチックレンズ成形用組成物及びそれを用いたプラスチックレンズ |
JPH09194546A (ja) * | 1996-01-17 | 1997-07-29 | Mitsubishi Rayon Co Ltd | 硬化性樹脂組成物及び低吸湿性光学部材 |
JP2000263567A (ja) * | 1999-03-19 | 2000-09-26 | Topcon Corp | レンズ成形装置 |
JP2002079797A (ja) * | 2000-06-23 | 2002-03-19 | Dainippon Printing Co Ltd | ホログラム転写箔 |
JP2002228805A (ja) * | 2000-11-30 | 2002-08-14 | Nikon Corp | 樹脂接合型光学素子及びその成形型並びに光学物品 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0534509A (ja) * | 1991-05-21 | 1993-02-12 | Asahi Optical Co Ltd | 非球面光学素子及びその製造方法 |
FR2696442B1 (fr) * | 1992-10-02 | 1994-12-23 | Corning Inc | Procédé de renforcement de la surface d'un article en verre sensible à l'humidité et article renforcé obtenu. |
JP2001300944A (ja) * | 2000-04-20 | 2001-10-30 | Sony Corp | 複合レンズの成形方法及び複合レンズ |
JP2003159719A (ja) * | 2001-11-27 | 2003-06-03 | Fuji Photo Optical Co Ltd | 複合非球面レンズの製造方法 |
-
2004
- 2004-01-29 JP JP2004022264A patent/JP2005060657A/ja active Pending
- 2004-04-20 EP EP04728465A patent/EP1617240A1/en not_active Withdrawn
- 2004-04-20 WO PCT/JP2004/005655 patent/WO2004095087A1/ja not_active Application Discontinuation
- 2004-04-20 CA CA002520771A patent/CA2520771A1/en not_active Abandoned
- 2004-04-20 US US10/510,768 patent/US20060012889A1/en not_active Abandoned
- 2004-04-20 TW TW093111020A patent/TWI249555B/zh active
- 2004-04-20 KR KR1020057019948A patent/KR100727718B1/ko not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03193313A (ja) * | 1989-12-22 | 1991-08-23 | Mitsubishi Rayon Co Ltd | プラスチックレンズの製造方法 |
JPH0931143A (ja) * | 1995-07-17 | 1997-02-04 | Mitsubishi Rayon Co Ltd | プラスチックレンズ成形用組成物及びそれを用いたプラスチックレンズ |
JPH09194546A (ja) * | 1996-01-17 | 1997-07-29 | Mitsubishi Rayon Co Ltd | 硬化性樹脂組成物及び低吸湿性光学部材 |
JP2000263567A (ja) * | 1999-03-19 | 2000-09-26 | Topcon Corp | レンズ成形装置 |
JP2002079797A (ja) * | 2000-06-23 | 2002-03-19 | Dainippon Printing Co Ltd | ホログラム転写箔 |
JP2002228805A (ja) * | 2000-11-30 | 2002-08-14 | Nikon Corp | 樹脂接合型光学素子及びその成形型並びに光学物品 |
Also Published As
Publication number | Publication date |
---|---|
TWI249555B (en) | 2006-02-21 |
CA2520771A1 (en) | 2004-11-04 |
JP2005060657A (ja) | 2005-03-10 |
EP1617240A1 (en) | 2006-01-18 |
KR20060015519A (ko) | 2006-02-17 |
KR100727718B1 (ko) | 2007-06-13 |
US20060012889A1 (en) | 2006-01-19 |
TW200426187A (en) | 2004-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2004095087A1 (ja) | ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズの製造方法、ハイブリッドレンズ及びレンズ系 | |
CN104749682B (zh) | 光学膜、防眩性膜和偏振片 | |
US20070172772A1 (en) | Microlens | |
EP3798277B1 (en) | Coating composition, spectacle lens, and method for manufacturing spectacle lens | |
JP2010037470A (ja) | 光学用の材料組成物およびそれを用いた光学素子 | |
JPH06258602A (ja) | 眼用コーティングレンズ | |
JP2010169708A (ja) | 複合型光学素子 | |
JPWO2017154589A1 (ja) | 硬化性組成物及び光学部材 | |
JP2006251017A (ja) | ハイブリッドレンズおよびその製造方法 | |
JP2007230076A (ja) | ハイブリッドレンズの製造方法およびその製造方法に用いられる型 | |
JP2008033223A (ja) | フォトクロミック膜およびそれを有するフォトクロミックレンズ | |
JP2005060696A (ja) | ハイブリッドレンズ用樹脂組成物、ハイブリッドレンズの製造方法、ハイブリッドレンズ及びレンズ系 | |
JP2006251024A (ja) | ハイブリッドレンズ、その製造方法および複層ガラス。 | |
JP3324854B2 (ja) | 重合性組成物 | |
JP2011063710A (ja) | 材料組成物およびそれを用いた光学素子 | |
JP2004346125A (ja) | 光学用硬化型樹脂組成物および耐光性光学部品 | |
CN1777823A (zh) | 复合透镜用树脂组合物、复合透镜的制造方法、复合透镜及透镜系统 | |
WO2018004000A1 (ja) | コーティング組成物、眼鏡レンズ及び眼鏡レンズの製造方法 | |
JP6016397B2 (ja) | フォトクロミックレンズの製造方法 | |
JPH11174201A (ja) | プラスチックレンズ用組成物およびプラスチックレンズ | |
JPH07109318A (ja) | 重合性組成物 | |
JP6844286B2 (ja) | インサート成形用ハードコートフィルムおよびこれを用いた樹脂成形品 | |
JPH073025A (ja) | 光重合性組成物 | |
JPH11174203A (ja) | 高屈折率プラスチックレンズ用組成物およびプラスチックレンズ | |
JPH06184241A (ja) | 重合性組成物 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2006012889 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10510768 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1-2005-501562 Country of ref document: PH |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2520771 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004728465 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057019948 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20048107319 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2004728465 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10510768 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057019948 Country of ref document: KR |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2004728465 Country of ref document: EP |