TW201245275A - Optical lens comprising aromatic-aliphatic polycarbonate resin - Google Patents

Abstract

The purpose of the present invention is to provide an optical lens which comprises an aromatic-aliphatic polycarbonate resin that has a large Abbe number and combines practically sufficient heat resistance with high molding flowability. This optical lens comprises a polycarbonate resin characterized in that the polycarbonate resin comprises constituent units (I) represented by formula (I) and constituent units (II) represented by formula (II), the proportion of the constituent units (II) to the sum of the constituent units (I) and (II) being 55-35 mol%, and that a solution obtained by dissolving 0.7 g of the polycarbonate resin in 100 mL of methylene chloride has a specific viscosity measured at 20 C of 0.12-0.298.

Description

201245275, VI. Description of the invention: [Technical field to which the invention pertains] relates to a U-shaped lens formed of an aromatic-aliphatic polycarbonate resin having a high Abbe number. Further, it has practically sufficient heat resistance and high mold fluidity. , f prior art] Camera, film-body camera, camera, camera, etc., optical materials such as optical glass or light glass, heat or transparency, dimensional stability, resistance = only material cost 'And the forming process is not good, 』 创创 = has a fat, and the light used in the use of lenses, etc., has been used in most lenses. In the case of the sorrow of the sputum, the smear of the smear of the smear of the smear of the smear of the smear However, the resin formed by Shuang·A has a refractive index as high as 1.585, but because of the Abbe number as low as 3 〇, the problem of the abbreviation of the main door, it has a refractive index and Abbe ==_ ° Secret, or butterfly to paste, must be 纤 Fibre double / in Patent Document 1, although the study of the formation of polycarbonate from cyclohexane dimethanol and methanol, but in the cyclohexane dimethanol ς) ^ Abbe The number becomes high, but the heat resistance becomes low. Conversely, the ratio of the ring in the ring ^ methanol month = 4 201245275

In addition, in the optical lens, in addition, we also try A: add α, 2 'in the 5 lens, in addition to the above-mentioned heat resistance or Abbe number characteristics, σ people also seek to form into optical lenses Sex. ^The reason for the above is to provide an optical mirror formed by a resin that lacks the characteristics of high Abbe number and richness* in order to provide the high Abbe number, the heat, the forming & The space for improvement. [Patent Document 1] JP-A-2003-90901 SUMMARY OF THE INVENTION An object of the present invention is to provide an optical lens formed of an aromatic/aliphatic polycarbonate resin, the aromatic-aliphatic polycarbonate The resin has a high Abbe number, and at the same time has practically sufficient heat resistance and high mold fluidity. The inventors of the present invention first discovered that if an aromatic-aliphatic polycarbonate resin having a specific molecular structure is used, it can be obtained. Optical lenses excellent in Abbe number and heat resistance. Further, it has been found that the polycarbonate resin can be precisely molded into a fine optical lens excellent in molding fluidity, and thus the present invention has been completed. That is, the object of the present invention can be attained by the following invention: 1. An optical lens formed of a polycarbonate resin, characterized by comprising: * a constituent unit represented by the following formula (I) (I)

The constituent unit shown in the following formula (Π) (II) (I) 201245275

The ratio of the constituent units (Π) is 55 to 35 mol% with respect to the total of the constituent units 1 and (II), and 〇. 7 g of the polycarbonate resin is dissolved in 1 〇〇 ml of the gas, in The specific viscosity measured at 20 〇 c is 0.12 to 0.298. 2. The optical lens according to the above item 1, wherein the content of the compound represented by the following formula (III) in the polycarbonate resin is from 50 to 300 ppm/g.

3. The optical lens of item 1 above, wherein the polycarbonate resin has a glass transition point of 115 to 160 ° C and an Abbe number of 43 to 35. 4. The optical lens of the above item 1, wherein the polycarbonate resin has a photoelastic coefficient of SOxlo.Upa·1 to soxio.upa·1. 5. The optical lens according to the above item 1, wherein the polycarbonate resin has a refractive index of from 1.53 to 1.55. 6. The optical lens of item 1 above is a diffractive lens. 7. The optical lens of item 6, wherein the diffractive lens has a thickness of 〇.5 to 3.0 mm, a diffraction grating depth of 5 to 20 μm, and an effective radius of the lens portion of 1 to 220.0 mm. An aspherical diffractive lens with a number of loops of 5 to 30, a minimum inter-belt of 201245275 (minimum f〇nal pitch) of 5 to 20 μm, a concave radius of curvature of oj to 10_0 mm, and a diameter of ί to 30 〇. [Embodiment] The polyacrylate resin contains: a constituent unit of 1>4·cyclohexanedimethanol residue (/A; and is 丨, 1_bis(4-hydroxyphenyl)_3,3,5· The constituent unit of the trimethylcyclohexane residue is 55 to 35 mol% based on the total of the constituent units (I) and (11), and the ratio of the constituent unit (9) is less than 35. In the case of mol%, 3,3,5-trimethylcyclohexane having a side chain reduces the effect of intertwining the molecular chains, and the heat resistance of the resin is lowered. Thus, satisfactory heat resistance cannot be obtained. The case of the formed article, and the ratio of the constituent unit (11) is higher than 55 mol, and the shape is due to the U-bis(4-hydroxyphenyl)-3,3,5-tridecyl ring having an aromatic ring. The influence of π electrons on the aromatic ring of the burned, the polarizability of the resin becomes larger. This will decrease the Abbe number, and the constituent unit (II) is calculated relative to the sum of the constituent units (1) and (11). The ratio is preferably from 5 to 40 mol%. The polycarbonate resin is substantially formed of the constituent units 1 and (11), and may contain (I) and (within the range not impairing the object of the present invention). II) From the viewpoint of the above, it is preferable that 90 mol% or more of the entire constituent unit of the polycarbonate resin is the constituent unit 1 and (11), more preferably 95 mol% or more, as the constituent unit (I) and (II) Dissolving 0_70g of polycarbonate resin in i〇〇cc of dichloromethane, the specific viscosity measured at 2 (rc is in the range of 0.12 to 0.298. The specific viscosity is preferably 0.15 to 0.295, more preferably 〇 The range of .2〇 to 0.29. When the specific viscosity is less than 0.12, the molded article becomes brittle. If it is higher than 0.298, the melt viscosity and the solution viscosity become high, and the treatment becomes difficult. In the polycarbonate resin, the lower The content of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane represented by the formula (III) is preferably from 50 to 300 ppm/g, more preferably from 70 to 250 ppm. /g, preferably 1〇〇 to 200ppm/g 201245275

The content of the compound represented by the formula (III) is adjusted by a reaction time of a high vacuum (i.e., i Torr). When the reaction is carried out under a vacuum of not more than 1 Torr, the content of the compound represented by the formula (ΠΙ) increases. Further, when the reaction time is too long, it is excessively distilled off from the resin. Further, in order to set the content of the compound represented by the formula (III) within the range, it is necessary to set the conditions for the final polymerization reaction to 240 ° C or more and 1 Torr or less, and the reaction time is set to 0 minutes or more, 1 Less than an hour. When the content of the compound represented by the formula (III) is in the above range, the Abbe number and the heat resistance of the polycarbonate resin are not impaired, and the molding fluidity can be improved. However, when the content is 300 ppm or more, the mold contamination becomes poor at the time of injection molding, and when the content is 50 ppm or less, the molding fluidity is poor, which is not preferable. The glass transition temperature (Tg) of the polycarbonate resin measured at a temperature rising rate of 2 〇 ° C / min is preferably 115 to 160 ° C, more preferably 120. (: to 155. (: When Tg is less than U5 ° C, the heat resistance of the optical lens formed using the copolymer is not sufficient; on the other hand, when the Tg exceeds 160 ° C, the melt viscosity becomes high, The treatment of the formation of the formed body is difficult, and is therefore unsuitable. The Abbe number of the polycarbonate resin at 25 ° C is preferably in the range of 43 to 35, more preferably 43 to 38. The value is smaller than 35, the color image The difference is large, and it is not suitable for the light film. The refractive index of the polycarbonate resin at 25 ° C at a wavelength of 589 nm is preferably in the range of i 53 to 1.55 ', more preferably from 1.540 to 1.545. When the value is more than that of U3, the lens is The thickness is required, so it is not suitable. 201245275 The photoelastic coefficient of polycarbonate resin is preferably 5〇χ1〇·ΐ2ρ^ to 3〇xl〇〗 2Pa1 'More preferably 45xl (T12pa-i to 3〇xl〇-i2Pa -i. When the photoelasticity is 5 〇 xl 〇 12 Pa or more, the formed product is birefringent, which is not suitable. (Production of polycarbonate resin) The method for producing a polycarbonate resin can be arbitrarily used. A method of producing a polycarbonate resin, for example, using diol and phosgene (ph〇Sgene) The transesterification reaction of an alcohol with a carbonate is preferred. In the reaction of a diol with phosgene, the reaction is carried out in the presence of a non-aqueous system in the presence of an acid binder and a solvent. For the acid binder, for example, a bite can be used. , dimethyl, aminopyridine, tertiary amine, etc. In terms of a solvent, for example, a halogenated hydrocarbon such as di-methane or gas benzene can be used. In the case of a molecular weight modifier, for example, phenol or a secondary butyl group is preferably used. a blocking agent such as phenol. The reaction temperature is usually 〇 to 4〇C>c, and the reaction time is preferably from several minutes to 5 hours. In the transesterification reaction, the diol is stirred in the presence of an inert gas, and the pressure is reduced. The lower portion is usually in the range of 120 to 350. (: The reaction is carried out, preferably 150 to 300. The reaction is carried out. The degree of decompression is changed stepwise, and finally set to be less than 1 mmHg, and the produced alcohol is distilled off to the outside of the system. The reaction time is usually about i to about 4 hours. Further, in the transesterification reaction, a polymerization catalyst may be used in order to promote the reaction. The polymerization catalyst is mainly composed of an alkali metal compound or an alkaline earth metal compound or a heavy metal compound. As needed The nitrogen-containing basic compound is used as an accessory component. _ In the case of an alkali metal compound, sodium hydroxide, potassium hydroxide, lithium hydrogen hydride, sodium hydrogencarbonate, potassium hydrogencarbonate, lithium hydrogencarbonate, sodium carbonate may be exemplified. , potassium carbonate, acid clock, sodium acetate, acetic acid unloading, acetic acid, sodium stearate, stearic acid, hard, lithium acid, sodium salt of bisphenol A, potassium salt, lithium salt, sodium benzoate, benzene Potassium citrate and benzoic acid. The alkaline earth metal compound may, for example, be hydrogen hydroxide, hydrogen oxyhydroxide, magnesium oxyhydroxide, hydrogen hydroxide, calcium hydrogencarbonate, cesium hydrogencarbonate, magnesium hydrogencarbonate or cesium hydrogencarbonate. Calcium carbonate, barium carbonate, magnesium carbonate, carbonic acid, acetic acid, barium acetate, magnesium acetate, barium acetate, calcium stearate, barium stearate, stearic acid, stearic acid, etc. Sodium oxide, acid-depleted gas. 201245275 The nitrogen-containing basic compound may, for example, be tetraammonium hydroxide, tetraethylammonium, tetrabutylammonium hydroxide, trimethylbenzylammonium hydroxide, trimethylamine, triethylamine or monomethylamine. Diphenylamine, dinonylaminopyridine, and the like. Among them, tetramethyl hydroxide is preferred. The other ester exchange catalyst may, for example, be a salt of zinc, tin, antimony, lead, titanium, bismuth, antimony, hungry or aluminum. For example, zinc acetate, zinc benzoate, zinc 2-ethylcarboxylate, tin oxide (9), gasified kick (four), tin acetate (9), tin (IV) acetate, dibutyltin dilaurate, dibutyltin oxide can be used. Dibutyltin dimethoxylate, bismuth bismuth diacetate, zirconium oxyacetate, tetrabutylphosphonium oxide, acetic acid (11), lead acetate (IV) tetrabutyl titanate (1\〇, etc. The catalyst may be used singly or in combination of two or more kinds, and the total amount of the diols is 1 Torr, and the amount of the polymerization catalyst is from 1 〇 to 9 to 10 摩尔. Further, two or more kinds may be used in combination, and in the transesterification reaction, in order to reduce the hydroxyl terminal group, a diaryl carbonate having a substituent having an electron attracting property may be added after the completion of the polycondensation reaction or after completion. Further, To improve the color tone, an antioxidant, a heat stabilizer, etc. may be added. After the completion of the polymerization reaction, in order to maintain the thermal stability and hydrolytic stability of the polycarbonate resin, the catalyst may be removed or deactivated. In the case of an alkali metal compound or an alkaline earth metal compound, it is generally appropriately added. A method of deactivating a catalyst by knowing an acidic substance. Specifically, an ester such as butyl benzoate or an aromatic sulfonic acid such as toluenesulfonic acid; p-toluene; An aromatic sulfonate such as butyl acrylate or p-toluene sulfonate; a phosphoric acid such as phosphorous acid, phosphoric acid or phosphonic acid; triphenyl phosphite, monophenyl phosphite, diphenyl phosphite , phosphites such as diethyl phosphite, di-n-propyl phosphite, di-n-butyl phosphite, di-n-hexyl phosphite, dioctyl phosphite, monooctyl phosphite; triphenyl phosphate, Phosphate esters such as diphenyl phosphate, monophenyl phosphate, dibutyl phosphate, dioctyl phosphate, monooctyl phosphate; phosphines such as diphenylphosphonic acid, dioctylphosphonic acid, dibutylphosphonic acid, etc. Acids; phosphonates such as diethyl phenylphosphonate; phosphines such as triphenylphosphine and bis(diphenylphosphino)ethane; boric acids such as boric acid and phenylboronic acid; 12201245275, Is the tetrabutyl, the material of the fragrant Wei Wei; hard lining gasification, gasification of thaliana, the two kinds of chlorides and other organic halides; The base sulfuric acid of the base sulfuric acid, etc.; the gasification of the f-base and the like, the self-chemical compound, etc. The towel is a 12-base benzene tetracuba turtle. Compared with the calibres, the deactivator can be used 0:01! 50 times Moule, preferably 0 3 to 20 times Mo. In terms of the amount of catalyst, if the amount is less than 0.01 times Mo, the activation effect of the county is not sufficient, so it is not suitable. When the amount is more than 5 Torr, the heat resistance is lowered, and the molded article is easily colored, which is not preferable. (Optical lens) The optical lens of the present invention can be, for example, an injection molding method or a compression molding method. It is formed by any method such as compression molding or casting, and it is preferably formed at a cylinder temperature of 230 to 300 C and a mold temperature of 90 to 15 Å under conditions of injection molding. It is preferably formed at a cylinder temperature of 240 to 280 ° C and a pound mold temperature of 100 to 14 (rc). Cylinder temperature, after 3 〇 (TC, the fat decomposition of the job, when less than bo., the high viscosity can not be formed. Also, when the mold temperature exceeds 15 〇, the resin does not harden, and can not be taken out of the mold Further, when it is less than 90 Å, a molded piece in which the resin is rapidly solidified in the mold cannot be obtained at the time of molding, or the mold cannot be molded and transferred. The optical lens of the present invention is preferably an aspherical lens. Since the lens can have a spherical aberration and the spherical aberration is substantially zero, the combination of the plurality of spherical lenses does not require the removal of the spherical aberration, and the weight can be reduced and the production cost can be reduced. Aspherical lenses are extremely useful in optical lenses, particularly as camera lenses. * Further, in the present invention, polycarbonate resins are particularly useful as materials for optical lenses having a small thickness and a complicated shape due to high molding fluidity. The specific lens size is from 0.05 to 3 mm in the center portion, more preferably from 至5 to 20 mm, and then from 01 to 2. ugly. Further, the diameter is from 1.0 mm to 30.0 mm. Preferably, the shape is 1.0 to 2 〇. 〇 mm, and more preferably 3.0 to 10.0 mm. Further, the shape thereof is preferably a meniscus lens having a convex surface on one side and a concave surface on one side. 11 201245275 Furthermore, the present invention The aspherical lens may include, in addition to the meniscus lens, a diffraction lens, a Fresnel lens, a f<9 lens, a cylindrical lens, a collimator lens, etc., wherein the polycarbonate resin Since it has good moldability, it is suitable for a diffraction lens which requires transferability. The diffraction lens of the present invention is formed by any method such as die forming, cutting, polishing, laser addition, electric discharge machining, and edging. The diffractive lens of the present invention is formed on the surface of the lens substrate such that the ore-like diffraction grating is formed into a concentric shape. Alternatively, the diffraction grating may be covered to form an optical film as a protective film. The adjustment layer has a shape in which the surface of the contact lens substrate of the optical adjustment layer and the opposite surface are formed to have substantially the same shape as an envelope passing through the groove of the diffraction grating. The diffraction lens of the present invention is borrowed. Made of silk adjusting layer The shape is substantially the same as the envelope surface of the groove around the grating, thereby improving the light collecting property and improving the MTF characteristics. In addition, the envelope surface of the groove passing through the diffraction grating may have a spherical spherical shape or a cylindrical shape. In particular, in the configuration in which the envelope _ is an aspherical shape, it is appropriate to correct the ^ == surface of the spherical shape. Further, the "aspherical shape" surface means that the above formula is vertical. The formula for the aspherical surface of the z _ _ turn in the χ γ plane, where c is the central curvature, the deviation of the a, b, c, and d tables from the quadric surface (deviati〇n): 3 values become the next The aspherical surface. In the case of 0> Κ, the case where the short axis becomes the elliptical surface of the optical axis at -1 < Κ < 0 is such that the long axis becomes the elliptical surface of the optical axis at K = -l , paraboloid in the case of K<-1 'hyperb〇i〇id' 12 201245275 In the diffractive lens of the present invention, the diffraction grating and the optical adjustment layer can be formed as any one-sided side of the lens, Can also be formed into two sides. In the case of two sides, ίί has the same depth and shape. Also, the % band ' in the diffraction grating need not be the same. Further, the shape of the lens is preferably a convex surface which is a shape of a diffraction grating and which forms an optical adjustment layer, and may be a concave surface, a convex surface, a convex surface or the like, in addition to a plane and a convex surface. In addition, to ensure the moldability of the mold, the contribution of the shape of the diffraction grating in terms of lens performance, and the stability of the ambient temperature, the depth of the diffraction grating is set to 2 〇. Second, in the case where the depth of the diffraction grating shape exceeds several tens of turns, the machining accuracy of the south is difficult to mold. This technique is performed by using the cuttlng tool in the general pound mold processing system. When the depth of the diffraction grating is deep, it is added: plus the damage of the front end of the butterfly tool is deteriorated. At the same time, when =, then the distance between the diffraction gratings cannot be narrowed. The diffractive light peach is transformed by a cutting tool with a large radius of curvature at the end of the ridge, and as a result, the degree of the winding is not widened, so that the diffraction light cannot be performed. Therefore, the deeper the depth of the diffraction grating, the diffraction The shape of the grating is: the loss of ten degrees of freedom' and the diffraction grating. Most of the effect of the aberration reduction is gradually lost to 0 grid, and the thickness of the vegetable lens is preferably 0.05 to 3. 〇mm, the annular diffraction aperture, the effective radius of the sheet. u to the face, the number of rings 5 is the most], the band spacing of 5.0 to 20.0μηι, the concave radius of curvature 〇" to 10.0mm straight from 1〇 to 3〇〇mm aspherical diffraction lens. The thickness of the grid is preferably from αΐ to 2 G_. Ring-shaped diffracted light, ίί qing is better. The effective radius of the lens portion is 2 to 15.0 coffee, and the m band is preferably 10 to 20. Minimum ring spacing 8. 〇 to cut (four) more ^ concave surface is mixed 〇 · 丨 to 5. Gmm better seven to 2 〇 〇 coffee better. The wavelength dispersion of the folded group of the diffraction mirror-like optical adjustment layer of in r is a resin having an Abbe number with a large mirror. Furthermore, it is better to have a good handling effect from the first generation of the women's layer, 13 201245275, due to the width of the choice of the 或 or the manufacturing of the mirror, the fine axis of the fat hardening and the ittii layer . Further, in order to form f ϊ f in the optical adjustment layer, it is preferable to use a photocurable resin such as a resin for a low-energy recording. From this point of view, the whole four are the (4) acid-based or epoxy-based resin. In order to provide various characteristics, various additives can be used in the optical mirror of the present invention insofar as the object of the present invention is not impaired. With added words, it can be equipped with release agent, paving, wire suction, hair thinning, antistatic agent, flame retardant, infrared screen, secret (including county whitening agent), pigment, light diffusing agent, Reinforce fillers, other resins or elastomers. In the case of the release agent, it is preferably 90% by weight or more of the ester of an alcohol and a fatty acid. In the case of an ester of an alcohol and a fatty acid, specifically, an ester of a monohydric alcohol and a fatty acid and/or a partial ester or a full ester of a polyhydric alcohol and a fatty acid may be mentioned. The ester of the monohydric alcohol and the fatty acid means a preferred one of a preferred number of carbon atoms to 2 Å and a saturated fatty acid having a gorge number of 1 to 3 Å. Further, a partial ester or a full ester of a polyhydric alcohol and a fatty acid preferably means a polyhydric alcohol having a carbon number of 丨 to 25 and a vinegar or a whole of a fatty acid having a carbon number of 10 to 30 and a fatty acid. Specific monohydric alcohols, saturated fatty acids and esters may, for example, be stearic acid stearin, palmitic acid palmitic vinegar, stearic acid butyl vinegar, lauric acid methyl vinegar, isopropyl palmitate, etc., preferably. It is stearic acid stearate. The specific polyhydric alcohol and a part of the vinegar or the whole of the saturated fatty acid may, for example, be stearic acid monoglyceride, stearic acid diglyceride, stearic acid triglyceride or stearic acid monosorbate ( Monosorbitate stearate), behenic acid monoglycerol vinegar, neopentyl glycol monostearate, neopentyl glycol tetrastearate, pentaerythritol tetradecanoate, propylene glycol monostearate Biphenyl biphenate _, sorbitan monostearate, 2-ethylhexyl stearate, dipentaerythritol hexaaroxylate, etc. Ester or partial ester, etc. Among these esters, it is preferred to use a mixture of 201245275 acid, stearic acid triglycerin, tetrastearic acid neodymidine tetraacetate, C glycerin day and % acid stearin. On the tongue. When the release agent is 100% by weight, the amount of the vinegar in the release agent is preferably 90% or more, more preferably 95% by weight or more. 1 The content of the releasing agent in the polycarbonate resin granules is preferably in the range of _5 to 2 parts by weight, more preferably 0.01 to 0.6 parts by weight, based on 100 parts by weight of the polycarbonate resin granules. Further preferably, it is in the range of 5 parts by weight. The thermal stabilizer may, for example, be a phosphorus-based heat stabilizer, a sulfur-based heat stabilizer, or a hindered phenol-based heat stabilizer. The phosphorus-based heat stabilizer may, for example, be a phosphorous acid, a phosphoric acid, a phosphinic acid, a phosphonic acid or the like, and specifically, a triphenyl phosphite or a phosphite (nonylphenyl) may be mentioned. Ester, phosphite (2,4-di-tert-butylphenyl) ester, phosphite (2,6-di-tri-butylphenyl) ester, tridecyl phosphite, phosphorous acid Trioctyl ester, tri-octadecyl phthalate, didecyl monophenyl phosphite, dioctyl monophenyl phosphite, diisopropyl monophenyl phosphite, monobutyl diphenyl phosphite , monodecyl diphenyl phosphite, monooctyl diphenyl phosphite, bis(2,6-di-tri-butyl-4-methylphenyl) pentaerythritol diphosphate, phosphorous acid 2,2-indenyl bis(4,6-di-tributylphenyl)octyl octylate, bis(nonylphenyl)neopentyl diphosphate, diphosphoric acid bis(2,4- Di-tertiary butylphenyl) pentaerythritol ester, distearyl pentaerythritol diphosphite, tributyl phosphate, triethyl phosphate, tridecyl phosphate, triphenyl phosphate, Jing Diphenylmonoorthoxyl phosphate, dibutyl phosphate, dioctyl phosphate, phosphoric acid Isopropyl ester, dinonyl phenylphosphonate, diethyl phenylphosphonate, dipropyl phenylphosphonate, di-tertiary butyl phenyl diphosphinate, 4,4'-strand phenyl ester, two Bismuth phosphinate (2,4-di-tert-butylphenyl)-4,3'-strandyl phenyl ester, bismuth diphosphinate (2,4-di-tert-butylphenyl)-3 , 3'-stretched benzene vinegar, bisphosphonate bis (2,4-di-tris-butylphenyl) 4-phenyl-phenyl ester, phosphinic acid bis (2,4-di-triode- Butylphenyl)-3-phenyl-phenyl ester, and (6_(3_(3•tris-butyl)- 5-indenyl)propoxy-valent condensed-tertiary butyldibenzo(4) For the treatment of dioxaphosphepine, etc. 201245275, which can be used (2,4-di-tert-butylphenyl) phosphite, bisphosphite (2,6-di-tert-butylbenzene) Ester, bismuth diphosphinate (2,4-di-tert-butylphenyl) 4,4^, phenyl phthalate, bismuth diphosphinate (2,4-di-tert-butylphenyl) )-4,3,·co-extension phenyl ester, bismuth diphosphinate (2,4-di-tert-butylphenyl)-3,3,-strand phenyl ester, phosphinic acid bis (2,4 -di-tertiary butylphenyl)4-phenyl-phenyl ester and phosphinic acid bis(2,4·di-tributylbutyl)-3-benzyl-benzaldehyde, (6-(3- (3-tertiary butyl-based-5- Indenyl) propoxy)-2,4,8,10-tetra-tert-butyldibenzo(d,f)(l,3,2)-dioxaphosphole. Bismuth phosphonate (2,4-di-tert-butylphenyl)-4,4'-t-phenyl ester, (6-(3-(3-tert-butyl 4-hydroxy-5-fluorenyl)) Propoxy)-2,4,8,10-tetra-tert-butyldibenzo (1,1,3,2)-dioxaphospho. This phosphorus-based compound can be easily utilized by Sumitomo Chemical Industries Co., Ltd. from a commercially available product such as Sumilizer-P-16 to Sumilizer GP (trade name). The content of the phosphorus-based heat stabilizer in the polycarbonate resin granules is preferably from 〇〇〇丨 to 02 parts by weight based on 100 parts by weight of the polycarbonate resin granules. In the case of a sulfur-based heat stabilizer, it may be exemplified by neopentyl alcohol-indole (3_lauryl thiopropionate), neopentyl alcohol-niobium (3·myrosylthiopropionate), Neopentyl alcohol·肆(3-stearyl thiopropionate), dilauryl·3,3′-thiodipropionate, diterpenoid-3,3′-thiodi Propionate, distearyl _3,3, thiodipropionate, and the like. Preferred among them are pentaerythritol·anthryl (3-laurylthiopropionate), neopentyl alcohol-indole (3-myristylthiopropionate), and dilaurylthiodipropionate. Ester, diterpenoid, 3,3'-thiodipropionate. Particularly preferred is pentaerythritol _ 肆 (3_lauryl thiopropionate). The thioether-based compound can be easily used as a commercially available product such as Sumilizer TP-D (trade name) and Sumilizer® (trade name) of Sumitomo Chemical Co., Ltd. The content of the sulfur-based heat stabilizer in the polycarbonate resin granules is preferably from 〇〇1 to 重量 2 parts by weight based on 100 parts by weight of the polycarbonate resin granules. In the case of a hindered heat stabilizer, triethylene glycol, biguanide-oxime, tertiary butyl-5-mercapto-4-hydroxyphenyl)propionate, and 16-hexanediol can be exemplified. ·Double [3_(3 5_二_^ butyl butyl > 4- phenyl) propionic acid vinegar], pentaerythritol-肆卜阳-二三级butyl phenyl) propionic acid vinegar] , octadecyl-3-(3,5-di-tertiary butyl-4-yl) propionic acid 201245275 vinegar, 1,3,5-trimethyl-2,4,6-para (3, 5-di-tertiary butyl 4-hydroxyl benzyl) benzene, : 1 ^ _ ', methylene bis (3,5---secondary butyl-4·trans-hydrogen cinnamate), 3,5_di-tertiary butyl-based phosphonic acid vinegar diethyl lysine, iso-cyanuric acid ginseng (3,5•dibutyl-4-one-f-based) vinegar and 3,9- Double {1,1-dimethyl-2(3_tris-butyl-4-ylhydroxy-5-methylphenyl)propanyloxy]ethyl}-2,4,8,10-tetraoxy Miscellaneous spiral (5,5)~) - hospital and so on. Particularly preferred is octadecyl-3-(3,5-di-tri-butyl-4-phenyl)propionate. The content of the hindered phenol-based heat stabilizer in the polycarbonate resin granules is preferably from 〇〇〇1 to 〇3 by weight based on 100 parts by weight of the polycarbonate resin granules. The ultraviolet absorber is preferably selected from the group consisting of a benzotriazole-based ultraviolet absorber, a benzophenone-based ultraviolet absorber, a tri-grain ultraviolet absorber, and a cyclic imido ester-based ultraviolet absorber. The cyanoacrylate is a group of at least one ultraviolet absorber. The benzotriazole-based ultraviolet absorber may, for example, be 2-(2-hydroxy-5-methylphenyl)benzotriazole or 2-(2-hydroxy-5-trioctylphenyl). Benzotriazole, 2-(2-yl-3,5-mono-base), basic bis-β, 2-(2-carbyl-3-tert-butyl-5-methylphenyl)- 5-Chlorobenzotriazole, 2,2,-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-(2N-benzotrimethyl)phenylhydrazine] , 2·(2_transcarbyl_3,5_di-tertiary butylphenyl)benzotriazole, 2-(2-pyridyl-3,5·di-tertiary butylphenyl)-5 - gas benzotriazole, 2-(2-carbamic-3,5-di-tri-pentylphenyl)benzotriazole, 2-(2-trans--5-trioctylphenyl) Benzotriazole, 2-(2-hydroxy-5.tributylphenyl)benzotriazole, 2-(2-hydroxy-4-octyloxyphenyl)benzotriazole, 2,2, - fluorenyl bis(4-cumyl-6-benzotriphenylene), 2,2,-p-phenylene bis(1,3-benzopf- -4-ke), 2-[2 -Hydroxy-3-(3,4,5,6-tetrahydrophthalimidomethyl)-5-methylphenyl]benzotriazole. They may be used singly or in combination of two or more. Preferred is 2-(2-hydroxy-5-methyl-benzyl)benzotriazine, 2-(2. mercaptotridecylphenyl)benzotriazole, 2-(2-hydroxy-3,5 -dicumylphenyl)phenylbenzotriazole, 2-(2-hydroxy-3.tertiarybutyl-5-methylphenyl)-5-chlorobenzotriazole, 2,2,-methylene Bis[4·(l,l,3,3-tetramethylbutyl)-6-(2N·benzotriazol-2-yl)phenylhydrazine], 2-[2-pyridyl-3-(3) , 4,5,6- 17 201245275 Tetrahydrophthalic acid imine methyl)-5-methylphenyl]benzotriazine. More preferably, 2-(2- mercapto-5-tertiary octylphenyl)benzotriazole, 2,2,-indenylene bis[4-(1,1,3,3-tetrayl) Butyl)-6-(2N- benzotriazol-2-yl)benzene]. ' ' ' In the case of a benzophenone-based ultraviolet absorber, 2,4-dihydroxybenzophenone, 2-hydroxy-4-decyloxydiphenyl-, 2-pyridyl->4-octyloxy Benzophenone, 2_ mercapto-4-benzyloxybenzophenone, 2-hydroxy 4-methoxy-5-thio benzophenone, 2-carbyl _4·. 曱oxy-5 - thiol trihydroacetic acid hydrazine 1 * 〇 1 > gamma (^ plus 6) benzophenone, 2,2,-di-based 4-methoxybenzophenone, 2, 2', 4, 4' -tetracarboxylic benzophenone ' 2,2,-dihydroxy-4,4,-dimethoxy dibenzolone, 2,2-mono-based ~4,4·-dimethoxy·5-nathene Oxybenzophenone, bis(5-benzylbenzyl-4-trans-2-ylphenyl)-methyl, 2-pyridyl-4-n-dodecyloxybenzophenone, 2-hydroxy 4 -Methoxy-2'-carboxybenzophenone and the like. In the case of the tri-based ultraviolet absorber, 2·(4 6_diphenyl_i, 3,5_three well-2-yl)-5-[(hexyl)oxy]-benzene, 2- (4,6-Bis(2,4-dimethylphenyl)-1,3,5-tris-2-yl)-5-[(octyl)oxy]-benzoquinone. In the case of a cyclic imido ester-based ultraviolet absorber, 2,2,_bis(3-phenylenecrosin-4-one), 2,2'-p-phenylene (3,1) can be exemplified. ·Benzene beer _4__), 2,2,_ inter-extension bis (3,1-benzo--4-one), 2,2'-(4,4'-diphenyl) Bis(3 1_benzoh _4·ketone), 2,2·-(2,6-naphthalene)bis(3,1·benzoh_4_one), 2,2,_' (1 5_ Naphthalene) bis(3,1-benzoxanthyl ketone), 2,2,-(2-methyl-p-phenylene) bis(3\_benzene' and benzylidene-4-one), 2 , 2'-(2-nitro-p-phenylene) bis(3,1-benzo-inhibiting Xudong) and 2,2'-(2·gas-p-phenylene) bis(3,1·benzo -4-ketone) and the like. Among them, 2,2-p-phenylenebis(3,1-benzopyrene^-4-one), 2,2'-(4,4'-di-phenylene) & (3, 1-benzopyrene _4_ketone) and 2,2'-(2,6-naphthalene) bis(5)-benzene^谔谔冬ς), particularly preferably 2,2,-p-phenylene (3) , 1 - Benzene -4-S with). These compounds are commercially available from CEi-P (trade name) of Takemoto Oil Co., Ltd.; they are easy to use. In the case of a cyanoacrylate-based ultraviolet absorber, 1,3_bis-[(2,-cyano-3',3,-diphenylpropenyl)oxy]-2,2-bis[( 2-cyano-3,3-diphenylpropanyl)oxy]methyl)propane, and 1,3-bis-[(2-cyano-3,3-diphenylpropene) Benzene, etc. 18 201245275 A The amount of the ultraviolet absorber is preferably 〇·01 to 3. 〇 by weight, more preferably 0.02 to 1.0 part by weight, based on 100 parts by weight of the polycarbonate granules. It is preferably 0.05 to 0.8 parts by weight. As long as it is within the range of such a blending amount, the polycarbonate resin molded article can be provided with sufficient weather resistance depending on the application. The blueing agent can be exemplified by Bayer's Macrolex Violet B and

Macrolex blue RR and Clariant's p〇iySynthren Blue RLS. Blue is very effective in eliminating the yellow color of the polycarbonate resin particles. In particular, in the case of a polycarbonate resin granule having weather resistance, in actuality, a polycarbonate resin molded article is used because it has a "ultraviolet absorbing agent f function or color" in combination with a certain amount of the ultraviolet absorbing agent. It is easy to carry yellow, which is very effective in providing a natural transparency of the sheet or lens. EXAMPLES The invention is further illustrated by the following examples. The sample for evaluation of L was prepared by the following method. (a) Cast film: The obtained 5 g of the polycarbonate resin was dissolved in methane methane 5 〇mi, and the lining was carried out on a glass dish. Thoroughly dry at room temperature, dry Tg from the polycarbonate crucible, and dry for 8 hours at a temperature below 2 (r) to prepare a cast film. (b) Aspherical lens: The obtained polycarbonate resin is L〇〇t^^ After 4 hours of vacuum drying, use a vent pipe (D30mm two-axis extruder to pellet = heating wire. Thereafter, at temperature Tg. c% mode twice 8 g ^ l ^ c, Injection molding was carried out using SE3〇DU injection molding manufactured by Sumitomo Heavy Industries Co., Ltd. to obtain a lens having a thickness of 0.6 mm, a convex curvature radius of 5 mm, a concave curvature radius of 4 mm, and φ5ηιηι. (c) Aspherical diffraction lens: , (b) The injection molding is carried out in the same manner to obtain a thickness of 3 faces, a ring-shaped spot grating depth of 15 μηι, an effective radius of the lens portion of 865 mm, a number of ring bands of 19, 19 201245275, a minimum ring pitch of 14 μηι, a concave radius of curvature of 〇lmm, and a milk leg. (a) The formed plate was injection-molded with the above-mentioned 〇>), and a molded plate having a width of 25 cm, a length of 5 cm, and a thickness of 3 mm was obtained. 2. Evaluation was carried out by the following method. 1) Specific viscosity: . The polycarbonate resin is sufficiently dried to make The square 7g of the polycarbonate resin was dissolved in 100ml two gas methane in the solution was determined ratio Viscosity 2〇t of Olsp). (2) Copolymerization ratio: The polycarbonate S resin was measured by proton NMR manufactured by JEOL. (3) Glass Transfer Point (Tg): The polycarbonate resin was measured by Model 910 DSC manufactured by DuPont. (4) Refractive index (nd), Abbe's number (v): A molded plate formed by the above (d) and having a thickness of 3 mm was measured using a Kalnew precision refractometer KPR-2000 manufactured by Shimadzu Corporation. v=(nd-l)/(nrnc) v : Abbe number is called: refractive index of d line (587.6 nm) nf: refractive index of F line (486.1 nm) nc: refractive index of C line (656.3 nm) ( 5) Photoelastic coefficient: Using the elliptical symmetry w_M_220 manufactured by JASCO Corporation, the phase difference (Re) at 589 nm was measured for the cast film formed by the above (8) and having a thickness of ΙΟΟμηι, and the photoelastic coefficient was obtained by an arc sine function. . (6) Formability: The filling failure of the aspherical lens formed by the above (b), the molding failure, the brittleness of the lens, and the like were visually confirmed. The evaluation is classified as less than 1% (©), 1% or more to less than 5% (〇), 5% or more to less than 20% (Λ), 20% or more according to the 201245275 rate. Hey. (7) Transferability: The surface shape of the above-mentioned (c) shaped aspherical diffraction lens was measured using a color 3D laser microscope VK-9710 manufactured by KEYENCE. The surface shape is evaluated by the depth of the annular diffraction grating, the number of annular bands, and the like, and the probability of becoming a defective product is classified as less than 1% (©), 1% or more to less than 5% (〇), or more than 5%. Less than 20% (Δ), 20% or more (X) 〇 (8) Unreacted Bis-TMC content using a column of Develosil ODS_7 manufactured by Nomura Chemical Co., Ltd., eluant acetonitrile / 0.2% acetic acid water and acetonitrile The mixed solution was subjected to HPLC analysis of the content of the Bis-TMC resin represented by the formula (III) by a gradient program at a column temperature of 3 Torr and a detector of 277 nm. The measurement was carried out by dissolving 1.5 g of the polycarbonate resin in 15 ml of dioxane, adding 135 ml of acetonitrile, stirring it, concentrating it by an evaporator, filtering it with a 0.2 μm filter, and injecting the measurement solution. Example 1 38.91 parts by weight of CHDM, 102.36 parts by weight of Bis-TMC, 132.39 parts by weight of diphenyl carbonate (hereinafter referred to as "DPC"), 〇.24 mg of sodium hydroxide and 27.3 mg of tetramethylammonium hydroxide were attached. A reaction boiler with a stirrer and a distillation unit was heated to 18 (rc) under a nitrogen atmosphere of 760 Ton* and stirred for 2 minutes. Thereafter, the pressure was adjusted to 13 4 kPa over 20 minutes to 6 〇〇c. The temperature of /hr was raised to 200 ° C ' and held for 40 minutes. Thereafter, the temperature was raised to 24 Torr over 6 minutes. (:, the transesterification reaction was carried out. Thereafter, the pressure was reduced to below i T rrrr over 80 minutes. The mixture was stirred under conditions of 24 (TC, 1 Torrid for 3 minutes, and polymerization was carried out. After adding 14.06 mg of tetrabutylsulfonate of dodecylbenzenesulfonate as a deactivating agent, it was stirred at 24 (TC, 1.33 x 104 Pa for 2 minutes). The produced polycarbonate is granulated and pelletized. The ratio of the constituent units of CHDM to Bis_TMC in the polycarbonate resin is 45:55 as a specific viscosity of 〇.281. The unreacted Bis TMC 21 201245275 content is 120 ppm / g. Using the obtained polycarbonate resin, The sample for evaluation was prepared by the methods (8) to (d) above. Example 2 Except that the amount of CHDM used in Example 1 was 43.26 parts by weight, the amount of Bis-TMC used was 93.12 parts by weight, and DPC was 132.39 parts by weight. A polyester carbonate copolymer was synthesized in the same manner as in Example 1. The ratio of CHDM to Bis-TMC in the polycarbonate resin was 50:50' molar viscosity of 0.255 ^ unreacted Bis-TMC in terms of molar ratio. The content was 180 ppm/g. Using the obtained polycarbonate resin, a sample for evaluation was prepared by the above methods (8) to (9). Example 3 The amount of CHDM used in Example 1 was 47.59 parts by weight, and the amount of Bis-TMC used was A polyestercarbonate copolymer was synthesized in the same manner as in Example 1 except that 83.08 parts by weight and DPC was 132.39 parts by weight. The ratio of CHDM to Bis-TMC in the polycarbonate resin was 55:55 in terms of molar ratio. The viscosity was 0.232. The content of unreacted Bis-TMC was 220 ppm/g. Using the obtained polycarbonate resin, a sample for evaluation was prepared by the above methods (8) to (9). Example 4 In addition to the amount of CHDM used in Example 1 56.24 parts by weight, Bis-TMC is used in an amount of 65.18 parts by weight. The polyester carbonate copolymer was synthesized in the same manner as in Example 1 except that the DPC was 132.39 parts by weight. The ratio of CHDM to Bis-TMC in the polycarbonate resin was 65:35 in molar ratio and 0.298 in specific viscosity. . The unreacted Bis-TMC content was 80 ppm/g. Using the obtained polycarbonate resin, a sample for evaluation was prepared by the methods (8) to (9) above. Comparative Example 1 25.5% by weight of CHDM, 13〇37 parts by weight of Bis_TMC, 132% by weight of DPC, 0.24 mg of sodium hydroxide and 27_3 mg of tetramethylammonium hydroxide were placed in a reaction boiler equipped with a stirrer and a distillation apparatus. In a nitrogen atmosphere of 760 T rr, add 22 201245275 = H8 〇 C : f for 20 minutes. Thereafter, the pressure was adjusted to 13.4 kPa by 20 minutes to raise the temperature to 60 Torr at a rate of 60 C/hr for 4 minutes. Thereafter, the temperature of Γτ was raised to 24 G ° C to carry out a brewing exchange reaction. Thereafter, the pressure was raised to below i Torr for 80 minutes, and the polymerization was carried out under conditions of 24 (rc, ! τ (10) or less for 2 hours. Thereafter, 14 〇6-diphenylbenzenesulfonic acid as a deactivator was added. After the tetrabutyl sulfonium salt, the polycarbonate resin produced by stirring 2〇 at 240〇c, 丨33xl〇4Pa is granulated and taken out. The ratio of CHDM to Bis-TMC in the s saponin resin, The ratio of the ear was 30.70, the specific viscosity was 0 435, and the content of unreacted Bis-TMC was 20 pp./g. Using the obtained polycarbonate resin, the sample for evaluation was prepared by the method of the above (8). 2 except that the amount of CHDM used in Comparative Example 1 was 60.57 parts by weight,

The amount of the Bis-TMC used was 55.87 parts by weight, and the DPC was 132.39 parts by weight. The polycarbonate resin was synthesized in the same manner as in Comparative Example 1 except that the polymerization reaction time was not carried out under the conditions of 240 C and 1 Torr. The ratio of CHDM to Bis-TMC in s-polycarbonate resin is 70:30 ′ specific viscosity 〇_1〇〇 in terms of molar ratio. The unreacted Bis_TMC content was 550 ppm/g. A sample for evaluation was prepared by the method of the above (8) to (9) using the obtained polycarbonate resin. Comparative Example 3 A polycarbonate resin was synthesized in the same manner as in Example 1 except that the amount of CHDM used was 43.37 parts by weight, the amount of bisphenol A (hereinafter abbreviated as "μμ) was 68.67 parts by weight, and DPC was 132.39 parts by weight. The ratio of CHDM to ruthenium in the polycarbonate resin was 50:50 in terms of molar ratio, and the specific viscosity was 0.280. Using the obtained polycarbonate resin, a sample for evaluation was prepared by the above methods (8) to (d). Comparative Example 4 The amount of CHDM used was 43.37 parts by weight, and the amount of 1,1-bis(4-hydroxyphenyl)cyclohexane (hereinafter referred to as "Bis-Z") was 80-51 parts by weight, and DPC was 23 201245275 132.39 parts by weight', and the polycarbonate resin was synthesized in the same manner as in Comparative Example 1 except that the polymerization reaction time was 1.5 hours at 240 ° C and 1 Torr or less. The ratio of CHDM to Bis-Z in the polycarbonate resin, The molar ratio was 50:50 and the specific viscosity was 0.374. Using the obtained polycarbonate resin, a sample for evaluation was prepared by the above methods (8) to (d). Comparative Example 5 The amount of CHDM used in Comparative Example 3 was 43.33 parts by weight, BPA used was 54.88 parts by weight, and Bis-TMC was 18.66. A polycarbonate resin was synthesized in the same manner as in Comparative Example 1 except that the DPC was 132.39 parts by weight ', and the reaction time was 4 hours under conditions of 240 ° C and 1 Torr. The CHMP, BPA and The ratio of Bis-TMC was 50.40 · 10' specific viscosity in terms of molar ratio of 0.468. Using the obtained polycarbonate 酉 resin, the evaluation samples were prepared by the above methods (a) to (d). Example 6 The amount of CHDM used in Comparative Example 3 was 43.33 parts by weight, the amount of BPA used was 54.88 parts by weight, Bis-TMC was 18.66 parts by weight, and DPC was 132.39 parts by weight, and was carried out under conditions of 240 ° C and 1 Torr. The polycarbonate resin was synthesized in the same manner as in Example 1 except that the polymerization reaction time was 30 minutes. The ratio of CHDM, BPA and Bis-TMC in the polycarbonate resin was 50:40:10 in terms of molar ratio, and specific viscosity. For the polycarbonate resin obtained by using (X285), a sample for evaluation was prepared by the methods (8) to (4) above. The results of the above Examples 1 to 4 and Comparative Examples 1 to 6 are shown in Table 。. In Examples 1 to 4, the Tg is in a suitable range, and the lens can be formed, and the Abbe number is also high. In contrast, in Comparative Example i, the Abbe number is low, and in the above molding conditions, the specific viscosity is high and the formability is lacking, and when the molding temperature is Tg+11 (Tc or more, the resin is decomposed, and the lens is decomposed. Further, in Comparative Example 2, although the Abbe number is high, the Tg is low and there is insufficient heat resistance, and the formed lens becomes brittle due to the lower specific viscosity. In Comparative Example 3, f Tg was low and there was insufficient heat resistance, and under the above molding conditions, since the resin was hard to be cured, it was not moldable. In Comparative Example 4, it was slightly poor and slightly poor. 24 201245275 Further, under the above molding conditions, the specific viscosity is high and the transfer property is poor. In Comparative Example 5,

Low Tg' poor heat resistance and large photoelastic coefficient. In Comparative Example 6, the photoelastic coefficient was also large. Further, under the above molding conditions, the mold release was not good, and Comparative Examples 1 to 6 could not be used because of the above, and the use range was limited. Mesh cable, or 25 201245275 Ι< aspherical diffraction lens transfer 〇〇 ◎ 〇1 1 1 <1 < X aspherical lens formability 〇 ◎ 〇 XX < 〇〇 < 3mm forming plate tTi iTi $ 1 1.54 | 1.55 1 1.53 1 1 1.56 1 1 1.56 1 1.55 1.55 | Abbe number | 〇 〇 00 00 ro oo 00 Yaobo photoelastic coefficient _cd Oh (NX as m κη Os (Ν CN v〇< N inch resin particles 00 P 〇ΙΤί iTi ^-4 ο ο 00 ON § s 〇 比 比 specific viscosity | 0.281 0.255 0.232 0.298 0.435 1 Ο 0.28 0.304 0.468 0.285 Bis-Z | Moer % I 1 1 1 1 II 1 1 1 BPA | Moer% I 1 1 1 1 1 幽1 Ο Ο Bis-TMC 1 Moer% I ir> ΙΛϊ S (N 1 1 Ο Ο CHDM 1 Moer % I iTi VO Ο in 〇Ο iTi Evaluation product implementation Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 201245275 Effect of the Invention The eight-lens lens has a high Abbe number, and further has a practical The field is: Sexual. The optical lens of the present invention is available in the high-priced glass industry. The light of the present invention The lens has a high Abbe number, and the latter has practical application and strict fluidity, so it can be suitably used for various optical lenses such as a camera lens, a forklift lens, a pickup lens, and a diffraction lens. BRIEF DESCRIPTION OF THE DRAWINGS The first diagram is a proton NMR chart of Example 2 (component of cyclohexanedimethanol (hereinafter referred to as CHDM", CHDM is a compound represented by the following formula (IV)) in a polycarbonate resin) Ratio to the composition of 1,μ bis(4-phenylene)_3,3,5-trimethylcyclohexan (hereinafter referred to as "Bis-TMC" 'Bis-TMC based compound of the above formula (III)) The molar ratio is 50: 50). The second figure is an enlarged view of the proton NMR chart (first image) of Example 2.

[Main component symbol description] 27

Claims (1)

201245275 VII. Patent application scope: 1. An optical lens formed of a polycarbonate resin, characterized in that the polycarbonate resin comprises a constituent unit represented by the following formula 1 (1) The ratio of the constituent units (H) to the sum of the constituent units (I) and (II) is 55 to 35 mol%, and 〇. 7 g of the polycarbonate resin is dissolved in 100 ml of dichloromethane, at 20 The specific viscosity measured at °C is from 0·ΐ2 to 0.298. 2. The optical lens according to claim 1, wherein the content of the compound represented by the following formula (ΙΠ) in the polycarbonate resin is 50 to 3 〇〇 ppm/g. 3. The optical lens of claim 1, wherein the polycarbonate resin has a glass transition point of 115 to 16 (TC ' and an Abbe number of 43 to 35. 4. Optical of claim 1 The lens 'where the polycarbonate resin 201245275 has a photoelastic coefficient of 5040 - 13⁄4^1 to 3 〇 xl 〇 '12pa-i. 5 - The optical lens of claim 1 wherein the polycarbonate resin The refractive index is from 1.53 to 1.55. 6. The optical lens of claim 1 is a diffractive lens. 7. The optical lens of claim 6, wherein the diffractive lens has a thickness of 0.05 to 3.0 mm. , the diffraction diffraction depth of the ring is 5 to 20 μm, the effective radius of the lens portion is io to 2 〇.〇mm, the number of the ring bands is 5 to 25, the minimum band spacing is 5 to 20 μm, and the radius of curvature of the concave surface is 0.1 to 10.0 mm. Aspherical diffractive lenses with a diameter of 1.0 to 30.0 mm.