Ophthalmic transmissive optical article set, ophthalmic lens set, ophthalmic transmissive optical article, and eyeglasses

Abstract

Provided is an ophthalmic transmissive optical article set capable of improving visual contrast. Provided is an ophthalmic transmissive optical article set comprising two ophthalmic transmissive optical articles, the ophthalmic transmissive optical article set having a color difference ([Delta] E00) between the two ophthalmic transmissive optical articles calculated on the basis of CIEDE2000, which is greater than 0.23 and less than 33.8, when a CIE standard light source (D65) of a 2-degree field of view is used as reference light.

Description

Technical Field

[0001] The present disclosure relates to an ophthalmic transmissive optical article set, an ophthalmic lens set, an ophthalmic transmissive optical article and glasses. Background Art

[0002] Patent document 1 describes a plastic eyeglass lens, which is a plastic eyeglass lens composed of a plastic lens wafer or a plastic eyeglass lens composed of a plastic wafer and one or more component layers formed on at least one side of the plastic wafer, wherein the plastic lens wafer is formed of a polyurethane thermosetting resin, a (meth)acrylic thermosetting resin, a polycarbonate resin or a polyamide resin, wherein the plastic eyeglass lens is characterized in that at least one of the plastic wafer and the component layer contains an organic pigment that satisfies the following condition (A).

[0003] Condition (A): In the visible light absorption spectrum of the organic pigment measured with chloroform or toluene solution, there is a main absorption peak (P) between 565nm and 605nm, and the absorption coefficient of the peak top (Pmax) of the main absorption peak (P) is 0.5×10 5 (ml / g·cm) or more, the peak width at the absorbance of 1 / 4 of the absorbance of the peak apex (Pmax) of the main absorption peak (P) is less than 50nm, and the peak width at the absorbance of 1 / 2 of the absorbance of the peak apex (Pmax) of the main absorption peak (P) is less than 30nm, and the peak width at the absorbance of 2 / 3 of the absorbance of the peak apex (Pmax) of the main absorption peak (P) is in the range of less than 20nm.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2013-61653 Summary of the invention

[0007] The present disclosure relates to an ophthalmic transmissive optical article set, which is composed of two ophthalmic transmissive optical articles, wherein when CIE standard light source D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 of the two ophthalmic transmissive optical articles calculated based on CIEDE2000 exceeds 0.23 and is less than 33.8. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a perspective view of one embodiment of a pair of spectacles having a set of ophthalmic transmissive optical articles.

[0009] Figure 2 This is a perspective view of one embodiment of an ophthalmic transmission optical article.

[0010] Figure 3It is a cross-sectional view of one embodiment of binoculars. DETAILED DESCRIPTION

[0011] Hereinafter, the ophthalmic transmission optical article set according to the present embodiment will be described in detail.

[0012] As an ophthalmic transmissive optical article set, a transmissive optical article set capable of improving visual contrast is desired. The transmissive optical article set for ophthalmology of the present embodiment has a characteristic capable of improving visual contrast.

[0013] In addition, in this specification, "to" is used to mean that the numerical values ​​described before and after it are included as a lower limit and an upper limit.

[0014] <Ophthalmic transmission optical article set>

[0015] As the ophthalmic transmission type optical article set, for example, there are Figure 1 The ophthalmic transmissive optical article set (ophthalmic lens set) 10 used in the spectacles 1 shown in the figure is specifically a ophthalmic transmissive optical article set including a right-eye spectacle lens 11 and a left-eye spectacle lens 12.

[0016] exist Figure 1 In the figure, the glasses 1 include an ophthalmic transmissive optical article group (ophthalmic lens group) 10 composed of a right-eye spectacle lens 11 and a left-eye spectacle lens 12 and a spectacle frame 14 to which the right-eye spectacle lens 11 and the left-eye spectacle lens 12 are attached.

[0017] That is, the ophthalmic transmissive optical article set 10 composed of the right eye spectacle lens 11 and the left eye spectacle lens 12 is the ophthalmic transmissive optical article set in the present disclosure, and is an ophthalmic lens set. In addition, the right eye spectacle lens 11 and the left eye spectacle lens 12 are the ophthalmic transmissive optical articles in the present disclosure, and are ophthalmic lenses, and are spectacle lenses.

[0018] The eyeglass frame 14 is a conventionally known eyeglass frame having a pair of lens frames on which the right-eye eyeglass lens 11 and the left-eye eyeglass lens 12 are mounted, respectively, and temples for hanging the eyeglass frame on the ears of the user.

[0019] In the ophthalmic transmission optical article set (ophthalmic lens set) 10 of the present disclosure, the L of the right-eye spectacle lens 11 and the left-eye spectacle lens 12 are * a * b * The color difference under the expression is more than 0.23 and less than 33.8. It should be noted that in the present disclosure, the color difference between two eyeglass lenses is a color difference ΔE00 in which coefficients corresponding to the values ​​of brightness, saturation, and hue are introduced to correct the visual inequality of CIELAB.

[0020] L * a * b * The coordinates in the representation vary depending on the light source used as a reference. In the present disclosure, values ​​calculated using CIE standard light source D65 with a 2-degree field of view, which is outdoor daylight, as a reference light are used.

[0021] The inventors of the present invention have discovered that by making the chromatic aberration ΔE00 of the two eyeglass lenses constituting the ophthalmic transmissive optical article group (ophthalmic lens group) 10 within the above-mentioned range, the visual contrast can be improved not only in outdoor daylight, but also in outdoor dusk, indoor LED lights and fluorescent lights, etc.

[0022] In order to obtain the effect of improving visual contrast, the colors of the two spectacle lenses need to have a color difference that can be recognized by humans if the colors are different. From this point of view, the L of the two spectacle lenses (the left eye spectacle lens and the right eye spectacle lens) is * a * b * The color difference ΔE00 under the display is greater than 0.23, more preferably greater than 0.4, and even more preferably greater than 0.6. On the other hand, when the color difference is too large, competition between the two eyes may occur, causing discomfort. Therefore, the color difference ΔE00 is less than 33.8, more preferably less than 20.0, and even more preferably less than 15.0.

[0023] L * a * b * The color difference under the display can be obtained as follows: Using a D65 light source (viewing field 2 degrees) as a reference light, a spectrophotometer (e.g., U-4100 manufactured by Hitachi High-Technologies Corporation) is used to measure the L of each eyeglass lens. * a * b * Coordinates, based on the L of the two eyeglass lenses obtained * a * b * The color difference ΔE00 is calculated by coordinate calculation.

[0024] An example of a specific measurement process is shown below. Using a spectrophotometer equipped with an integrating sphere (U-4100 manufactured by Hitachi High-Technologies Corporation), the reference light is measured without a sample, and then the convex surface of the eyeglass lens is set toward the incident light side to measure the transmitted light, thereby measuring the spectral transmittance of the eyeglass lens. The beam size at the sample position is about 11 mm in length and about 8 mm in width, the measurement wavelength range is 380 nm to 780 nm, the scanning speed is 300 nm / min, the sampling interval is 0.50 nm, the number of measurements is 1, and the slit width is 5 nm.

[0025] Next, based on the obtained spectral transmittance, the color calculation program of U-4100 is used to calculate the visual transmittance Y value and the L value when the D65 light source (viewing field 2 degrees) is used as the reference light. * value, a * Value, b * value.

[0026] Finally, the calculation method was described in the literature (Gaurav Sharma, et. al., The CIEDE2000 Color-Difference Formula: Implementation Notes, Supplementary Test Data, and Mathematical Observations, COLOR research and application, Volume 30, Number 1, February 2005) and the spreadsheet published by the authors of the literature (http: / / www2.ece.rochester.edu / ~gsharma / ciede2000 / ), and the L values ​​of the two spectacle lenses measured previously were calculated. * value, a * Value, b * The color difference ΔE00 is calculated based on the value.

[0027] In addition, the spectral transmittance of the spectacle lens can be measured at the optical center of the spectacle lens. In this regard, even if the spectacle lens has no degree, the lens has a curved surface, so the same applies. In addition, the optical center and the geometric center of the spectacle lens before rounding are at the same position, so in the case of the spectacle lens before rounding, the measurement can also be performed at the geometric center.

[0028] In addition, when the eyeglass lenses are progressive lenses, measurement is performed at any one or more of the prism reference point, the distance measurement point and the near measurement point, and the chromatic aberration ΔE00 of the two eyeglass lenses (progressive lenses) at each position shall be greater than 0.23 and less than 33.8.

[0029] In the case of the ophthalmic transmissive optical article (goggles) having two regions of different colors described later, two points in the left and right directions are defined as the optical centers of each region in the center of the ophthalmic transmissive optical article in the up-down direction. The distance between the two points is set to 64 mm ± 10 mm for adults and 50 mm ± 10 mm for children, based on the center of the ophthalmic transmissive optical article. The two points are set as the optical centers of each of the two regions to measure the spectral transmittance.

[0030] Here, when two spectacle lenses have chromatic aberration, there is no particular restriction on the color concentration of the spectacle lenses, that is, the visual transmittance of the lenses. As long as the chromatic aberration ΔE00 of the two spectacle lenses exceeds 0.23 and is less than 33.8, the effect of improving visual contrast can be achieved while suppressing the occurrence of binocular visual field competition.

[0031] If the visual transmittance of the two spectacle lenses is too low, even if the visual contrast is improved by the effect of the present disclosure, it will be difficult to obtain good vision due to the small amount of light entering the eyes. From the above viewpoint, the visual transmittance of the two spectacle lenses is preferably 3% or more, more preferably 18% or more, further preferably 43% or more, and especially preferably 80% or more. It should be noted that, as described later, fluorescent dyes and light-storing dyes can also be used for dyeing spectacle lenses. In this case, the visual transmittance of the spectacle lenses can also exceed 100%. It should be noted that the upper limit of the visual transmittance of the two spectacle lenses is mostly below 120%, and more often below 110%.

[0032] The visual transmittance of the two spectacle lenses may be the same or different. If the difference between the visual transmittance of the two spectacle lenses is large, it may affect binocular stereoscopic vision due to the Pulfrich effect, so the difference between the visual transmittance of the two spectacle lenses is preferably small, preferably 70% or less, more preferably 50% or less, and further preferably 30% or less.

[0033] The visual transmittance can be measured by the method described above. Alternatively, the spectral transmittance of the eyeglass lens can be measured by a spectrophotometer (e.g., U-4100 manufactured by Hitachi High-Technologies Corporation), and the visual transmittance can be calculated based on the spectral transmittance in accordance with JIS T7333:2018.

[0034] Here, there is no particular restriction on the color of each of the two spectacle lenses as long as the color difference ΔE00 exceeds 0.23 and is less than 33.8. For example, in the purple-blue spectacle lenses described in Patent Document 1, which are believed to have a visual contrast improvement effect, the visual contrast improvement effect can be further improved by adjusting the color so that the color difference ΔE00 of the two spectacle lenses exceeds 0.23.

[0035] In addition, the color can be selected according to the preference of the wearer of the spectacle lenses. The colors of the two spectacle lenses will mix in the brain to form an intermediate color, so the colors of the two spectacle lenses are preferably between L * a * b * The target color is sandwiched between them in the color system and is located at the exact opposite position.

[0036] Furthermore, the colors of the two eyeglass lenses are preferably in a relationship of physical complementary colors. This is because, in this way, when the images entering from the left and right eyes are mixed in the brain, they become a neutral color (gray) and the sense of disobedience is reduced. It should be noted that physical complementary colors refer to colors that complement each other (compensate for each other). * a * b * Colors located at opposite positions from the origin in the color system.

[0037] Specifically, for example, as a combination of colors of two eyeglass lenses, it is preferable to select two colors that are physically complementary, such as red and cyan, green and magenta, or blue and yellow. However, from the viewpoint of reducing the influence of color when observing with one eye, such as when blinking, it is preferable not to use yellow-based colors that have a strong psychological stimulation, i.e., b * As for the color whose value is large on the positive side, it is more preferable to select a combination of two eyeglass lens colors from red, blue, and green colors and intermediate colors therebetween.

[0038] It should be noted that the red color refers to the color in L * a * b * In the color system * The value is on the positive side, the green color refers to a * The color with a large negative value, such as blue, refers to b * The values ​​are larger in negative side.

[0039] In addition, both of the two spectacle lenses may be colored, or one of the spectacle lenses may be colored (hereinafter, also referred to as a colored lens) and the other spectacle lens may be non-colored (hereinafter, also referred to as a transparent lens). That is, the ophthalmic transmission optical article set (ophthalmic lens set) disclosed in the present invention has at least one colored lens.

[0040] In addition, the coloring of the lens may be uniform or distributed throughout the lens. For example, by making the color of the center portion of the lens where the user's line of sight is easily focused dark, sufficient color difference between the two lenses can be maintained, while by making the color of the peripheral portion of the lens where the user's line of sight is not easily directed light, the impression of color when observed from outside the user is weakened. Here, the center portion of the lens where the user's line of sight is easily focused is determined by the user of the lens and the shape of the eyeglass frame, and is appropriately selected from the geometric center and the optical center.

[0041] Specifically, in the present disclosure, the above-mentioned method for measuring chromatic aberration is performed on the geometric center of a circular lens (spectacle lens before rounding) with a diameter of 75 mm. In this case, the geometric center is the same as the optical center. On the other hand, after the lens is rounded and loaded into the spectacle frame, the geometric center is different from the optical center, so chromatic aberration is preferably measured at the optical center.

[0042] In addition, the two spectacle lenses may be spectacle lenses for vision correction given a predetermined degree, or spectacle lenses without a degree, or lenses for protective glasses. In addition, they may be progressive lenses with varying degrees in one lens. Alternatively, they may be lenses for magnifying glasses (spectacle-type magnifiers).

[0043] Alternatively, the two eyeglass lenses may be eyeglass lenses for sunglasses that reduce a portion of ultraviolet rays and / or visible light.

[0044] Alternatively, the ophthalmic transmissive optical article set (ophthalmic lens set) may be an ophthalmic lens set that can be attached to a pair of glasses and is independent of the glasses. A lens set that is independent of the glasses is also called a clip.

[0045] Hereinafter, the spectacle lenses included in the ophthalmic transmission optical article set (ophthalmic lens set) will be described in detail.

[0046] The lens substrate that becomes the eyeglass lens can be plastic or glass. To color the plastic substrate, a colorant can be mixed when the plastic substrate is solidified. In addition, at least one surface of the solidified plastic substrate can be dyed using a prescribed dyeing liquid. The plastic substrate dyed using a dyeing liquid has a uniform color regardless of the thickness of the substrate, so it is preferred. In addition, a film containing a colorant or an interference film can be set on a non-colored plastic lens (transparent lens) to allow only a specific wavelength to pass through, thereby coloring the lens as a whole.

[0047] Similarly, in a glass substrate, a colorant can be mixed into the glass itself, or a film containing a colorant or an interference film can be provided on a non-colored glass lens (transparent lens) to transmit only a specific wavelength, thereby coloring the eyeglass lens itself including a functional film.

[0048] Examples of the resin contained in the lens substrate, i.e., the plastic substrate, include acrylic resins, thiourethane resins, methacrylic resins, allyl resins, episulfide resins, polycarbonate resins, polyurethane resins, polyester resins, polystyrene resins, polyethersulfone resins, polymethylpentene resins, diethylene glycol diallyl carbonate resins, polyvinyl chloride resins, and sulfur-containing copolymers.

[0049] In the present embodiment, the refractive index of the plastic base material at a wavelength of 546.1 nm is preferably in the range of 1.50 to 1.74, for example.

[0050] In the present disclosure, the dyeing solution used in dyeing the plastic substrate preferably contains a dye, a surfactant and a solvent (e.g., water). In addition, one dyeing solution can be a dyeing solution containing one dye, i.e., a dye of one color, or a mixed dyeing solution containing two or more dyes, i.e., dyes of two or more colors.

[0051] That is, in dyeing the plastic substrate, a plurality of dyeing liquids each having a different color may be used, or a mixed dyeing liquid obtained by blending dyes of two or more colors may be used.

[0052] It should be noted that the mixed dyeing liquid may be prepared by mixing a plurality of dyeing liquids of different colors, or may be prepared by pre-blending a plurality of dyes and using the blended dyes.

[0053] The dye may be any dye as long as it is within the limited range of the visual transmittance of the present disclosure and the limited range of the chromatic aberration between two eyeglass lenses.

[0054] Examples of the dye include disperse dyes, reactive dyes, direct dyes, composite dyes, acid dyes, metal complex dyes, vat dyes, sulfur dyes, fluorescent dyes, light-storing dyes, dyes for resin coloring, and other functional dyes.

[0055] Moreover, as a dye, a yellow (Y) dye, a red (R) dye, a blue (B) dye, a brown dye, a violet dye, an orange dye, and a black dye are mentioned, for example.

[0056] From the viewpoint of reducing the change in color of the eyeglass lens caused by the light source, it is preferable to use two or more dyes in combination rather than using only one dye.

[0057] Examples of the yellow dye include Disperse Yellow (Kayaron Polyester Yellow) AL, Kayalon Microester Yellow AQ-LE, Kayalon Microester Yellow C-LS, Kayaron Microester Yellow 5L-E, Kayaron Polyester Yellow 5R-SE(N)200, and Kayaron Polyester Yellow BRL-S 200 (manufactured by Nippon Kayaku Co., Ltd.), Kiwalon Polyester Yellow ESP eco, and Kiwalon Polyester Yellow KN-SE 200 (manufactured by Kiwa Chemical Industries, Ltd.), FSP-Yellow PE (manufactured by Futaba Sangyo Co., Ltd.), and Dianix Yellow (manufactured by Diester Japan Co., Ltd.).

[0058] Examples of the red dye include Disperse Red (Kayalon Microester Red) AUL-S, Kayalon Microester Red 5L-E, Kayalon Microester Red C-LS conc, Kayalon Microester Red DX-LS, Kayalon polyester Red AN-SE, Kayalon Polyester Red B-LE, and Kayaron Polyester Rubine GL-SE 200 (manufactured by Nippon Kayaku Co., Ltd.), Kiwalon Polyester Red ESP, and Kiwalon Polyester Red KN-SE (manufactured by Kiwa Chemical Industries, Ltd.), FSP-Red BL (manufactured by Futaba Sangyo Co., Ltd.), and Dianix Red (manufactured by Diester Japan Co., Ltd.).

[0059] Examples of the blue dye include Disperse Blue AUL-S dye (manufactured by Nippon Kayaku Co., Ltd.), Dianix Blue AC-E (manufactured by Diester Japan Co., Ltd.), Kiwalon Polyester Blue ESP, Kiwalon Polyester Blue KN-SE (manufactured by Kiwa Chemical Co., Ltd.), Kayalon Microester Blue AQ-LE, Kayalon Microester Blue 5L-E, Kayalon Microester Blue C-LSconc, Kayalon Microester Blue DX-LSconc, Kayalon Polyester Blue AN-SE, Kayaron Polyester Blue AUL-S(N) (manufactured by Nippon Kayaku Co., Ltd.), and FSP-Blue AUL-S (manufactured by Futaba Sangyo Co., Ltd.).

[0060] The surfactant is not particularly limited as long as it can uniformly disperse the dye in a solvent such as water.

[0061] Examples of the surfactant include ionic surfactants (eg, anionic surfactants, cationic surfactants, etc.) and nonionic surfactants.

[0062] Examples of the solvent include water and organic solvents.

[0063] Examples of the organic solvent include alcohol solvents, ketone solvents, ether solvents, ester solvents, hydrocarbon solvents, halogenated hydrocarbon solvents, amide solvents, sulfone solvents, and sulfoxide solvents.

[0064] The dyeing liquid may contain various additives such as a pH adjuster, a viscosity adjuster, a leveling agent, a matting agent, a stabilizer, an ultraviolet absorber, and an antioxidant, as required.

[0065] The content of the dye contained in the dyeing liquid is preferably 0.001 to 10% by mass, more preferably 0.01 to 5% by mass, based on the total mass of the dyeing liquid.

[0066] The content of the surfactant contained in the dyeing liquid is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, based on the total mass of the dyeing liquid.

[0067] As a method of obtaining a colored lens by dyeing at least one surface of a plastic substrate, for example, the following three methods can be mentioned.

[0068] (1) A method for dyeing the surface of a plastic substrate by applying a dyeing liquid to the surface of the plastic substrate and heating the dyeing liquid (coating method)

[0069] (2) A method of dyeing the surface of a plastic substrate by immersing the plastic substrate in a heated dyeing solution (immersion dyeing method)

[0070] (3) A method of dyeing the surface of a plastic substrate by applying a sublimation dye to a transfer medium, placing a plastic substrate near the transfer medium and heating it (sublimation dyeing method)

[0071] Among these three methods, the coating method (1) is preferred because the amount of dyeing liquid used is small and the production cost can be suppressed. On the other hand, the immersion dyeing method (2) is preferred because it is easy to apply evenly, and the sublimation dyeing method (3) is preferred because it is easy to pattern. Therefore, the method can be selected according to the application. These methods can be used alone or in combination.

[0072] Examples of a method for applying the dyeing liquid to the plastic substrate in the above-mentioned coating method include common coating methods such as brush coating, dip coating, spin coating, roll coating, spray coating, flow coating, and inkjet coating.

[0073] Regarding coating, the coating may be applied to one side of the plastic substrate or may be applied to both sides in order to increase the coloring density.

[0074] The coating thickness of the dyeing liquid on the plastic substrate can be adjusted appropriately, and can be set within a range of 0.01 to 10 μm, for example.

[0075] When dyeing (coloring) a plastic substrate by a coating method, it is preferred that a dyeing solution is applied to the surface of the plastic substrate and then subjected to a heat treatment so that the dye in the dyeing solution penetrates and diffuses into the surface of the plastic substrate.

[0076] As heating conditions for the plastic substrate coated with the dyeing liquid, the heating temperature is preferably 70 to 180° C. and the heating time is preferably 10 to 180 minutes. As the heating method, in addition to air furnace heating, far infrared irradiation heating and UV irradiation heating are exemplified.

[0077] In the case of dyeing a plastic substrate with a smooth concentration gradient (coloring process) by dyeing based on the coating method, by applying the dyeing liquid to the lens and heating the coating liquid surface (dyeing liquid surface) while gradually changing the heating area, the dye in an amount corresponding to the concentration gradient can be allowed to penetrate into the plastic substrate.

[0078] Alternatively, the dyeing liquid may be applied to the plastic substrate, and the plastic substrate coated with the dyeing liquid may be heated and then cleaned.

[0079] The method for cleaning the plastic substrate is not particularly limited as long as the coating (applied dye solution) on the surface of the plastic substrate can be removed, but wiping with an organic solvent or cleaning with an alkaline cleaning agent is preferred.

[0080] When dyeing the plastic substrate by the above-mentioned immersion dyeing method, the plastic substrate can be immersed in a dyeing solution, and the dye in the dyeing solution can be infiltrated and diffused from the surface of the plastic substrate.

[0081] In dyeing by the dip dyeing method, the plastic substrate is preferably immersed in a dyeing liquid heated to 80 to 95°C.

[0082] After the immersion is completed, the plastic substrate may be cleaned. As a method for cleaning the plastic substrate, wiping with a solvent is mentioned.

[0083] The eyeglass lens may also include a functional film. The functional film is a film disposed on the lens substrate such as the plastic substrate described above, and examples of the functional film include polarizing films, photochromic films, primer films, hard coating films, interference films such as antireflection films, and water and oil repellent films.

[0084] It should be noted that, when the spectacle lens has a functional film disposed on the lens substrate as described above, the spectacle lens as a whole including the functional film satisfies the above-mentioned relationship between visual transmittance and chromatic aberration.

[0085] The base film is a layer used to improve the adhesion between the members disposed on both sides of the film.

[0086] The material constituting the base film is not particularly limited, and known materials can be used, for example, resin is mainly used. The type of resin used is not particularly limited, for example, polyurethane resin, epoxy resin, phenolic resin, polyimide resin, polyester resin, bismaleimide resin and polyolefin resin can be cited, and polyurethane resin is preferred.

[0087] The method for forming the base film is not particularly limited, and a known method can be used. For example, a base film-forming composition containing a predetermined resin is applied to a spectacle lens and, if necessary, cured to form the base film.

[0088] The hard coating film is a layer that imparts scratch resistance to eyeglass lenses.

[0089] The hard coating film is preferably a hard coating film that exhibits a hardness of "H" or higher using a pencil hardness tester in accordance with the test method specified in JIS K5600.

[0090] As the hard coat film, a known hard coat film can be used, for example, an organic hard coat film, an inorganic hard coat film, and an organic-inorganic hybrid hard coat film are mentioned. For example, in the field of eyeglass lenses, an organic-inorganic hybrid hard coat film is generally used.

[0091] The method for forming the hard coating film is not particularly limited, and examples thereof include a method in which a hard coating film-forming composition is applied to a spectacle lens to form a coating film, and the coating film is subjected to a curing treatment such as a light irradiation treatment.

[0092] The structure of the antireflection film is not particularly limited, and may be a single-layer structure or a multi-layer structure.

[0093] As the antireflection film, an inorganic antireflection film is preferable. The inorganic antireflection film refers to an antireflection film composed of an inorganic compound.

[0094] In the case of multilayer structure, preferably a structure in which low refractive index layer and high refractive index layer are alternately stacked. It should be noted that, as the material constituting the high refractive index layer, for example, the oxide of titanium, zirconium, aluminum, niobium, tantalum or lanthanum can be enumerated. In addition, as the material constituting the low refractive index layer, for example, the oxide of silicon dioxide can be enumerated.

[0095] The method for producing the antireflection film is not particularly limited, and examples thereof include dry methods such as vacuum deposition, sputtering, ion plating, ion beam assist, and chemical vapor deposition (CVD).

[0096] Here, in the above example, the ophthalmic lenses of the ophthalmic lens set are a right eye spectacle lens and a left eye spectacle lens, but the present invention is not limited thereto, and the ophthalmic lenses may also be contact lenses. That is, the following structure may also be adopted: the ophthalmic lens set includes a right eye contact lens and a left eye contact lens, and the L of the right eye contact lens and the left eye contact lens is * a * b * The color difference under the indication is more than 0.23 and less than 33.8.

[0097] When the color difference of the right-eye contact lens and the left-eye contact lens satisfies the above range, the visual contrast can be improved. In addition, the two contact lenses can be contact lenses for vision correction given a predetermined degree, or can be contact lenses without a degree.

[0098] <Binoculars>

[0099] The ophthalmic transmission optical article set disclosed in the present invention can also be used in an optical article for visual confirmation with binocular vision. As the above optical article, for example, binoculars can be cited. The binoculars can be binocular telescopes or binocular microscopes.

[0100] As the above-mentioned binoculars, for example, there can be mentioned a pair of binoculars having Figure 360 of the structure of the cross-sectional view shown in FIG. 6. Specifically, the binoculars 60 having a light shielding tube 61R for right eye and a light shielding tube 61L for left eye can be cited. The light shielding tube 61R for right eye includes, in order from the user side, a right eye eyepiece group 62R, a right eye Dach prism 64R, a right eye auxiliary prism 66R, and a right eye objective lens group 68R. The light shielding tube 61L for left eye includes, in order from the user side, a left eye eyepiece group 62L, a left eye Dach prism 64L, a left eye auxiliary prism 66L, and a left eye objective lens group 68L.

[0101] In the binoculars 60, the right-eye eyepiece group 62R, the right-eye Dach prism 64R, the right-eye auxiliary prism 66R, and the right-eye objective lens group 68R correspond to the optical system for the right eye, and the left-eye eyepiece group 62L, the left-eye Dach prism 64L, the left-eye auxiliary prism 66L, and the left-eye objective lens group 68L correspond to the optical system for the left eye. That is, the binoculars 60 include an optical system for the left eye and an optical system for the right eye. Here, the left-eye optical system and the right-eye optical system are L. * a * b * The chromatic aberration in the display is greater than 0.23 and less than 33.8. Thus, in the binoculars 60, the visual contrast can be improved.

[0102] It should be noted that, in the binoculars 60, as long as the chromatic aberration of the entire optical system for the right eye and the entire optical system for the left eye exceeds 0.23 and is less than 33.8, it does not matter which of the lenses and prisms constituting each optical system is colored. For example, the eyepiece for the right eye and the eyepiece for the left eye may satisfy the above chromatic aberration, the objective lens for the right eye and the objective lens for the left eye may satisfy the above chromatic aberration, the Dach prism for the right eye and the Dach prism for the left eye may satisfy the above chromatic aberration, or the auxiliary prism for the right eye and the auxiliary prism for the left eye may satisfy the above chromatic aberration. That is, the above-mentioned ophthalmic transmission type optical article group (ophthalmic lens group) may also be used as the lens constituting the optical system of the binoculars.

[0103] Alternatively, as long as the chromatic aberration between the overall optical system for the right eye and the overall optical system for the left eye is greater than 0.23 and less than 33.8, two or more of the lenses and prisms that constitute each optical system may be colored, or all of the lenses and prisms may be colored.

[0104] There is no particular limitation on the method of coloring the eyepiece or objective lens used in the above-mentioned binoculars, and the same method as that of eyeglass lenses can be used. As the base material of the eyepiece and the objective lens, the same base material as that of eyeglass lenses can be used.

[0105] The method of coloring the auxiliary prism or Dach prism used in the binoculars is not particularly limited, and the same method as that for eyeglass lenses can be used. For example, known optical glass can be used as the base material of the auxiliary prism and Dach prism.

[0106] Binoculars 60 can also be in addition to Figure 3 The structures other than those shown include known structures. Examples of known structures include intermediate lenses and filters. The above structures can also correspond to components of the optical system.

[0107] in addition, Figure 3 The binoculars 60 shown are structured using a right-eye Dach prism 64R, a right-eye auxiliary prism 66R, a left-eye Dach prism 64L, and a left-eye auxiliary prism 66L, but the binoculars disclosed may also be structured using a set of right-eye Porro prisms and a set of left-eye Porro prisms instead of the above prisms.

[0108] In addition, Figure 3 , but the binoculars of the present disclosure may also be binocular microscopes. In the binocular microscope of the present disclosure, as in the aforementioned binoculars, the function of providing a predetermined chromatic aberration can be given to any component of the optical system for the right eye and the optical system for the left eye in the optical system from the objective lens to the eyepiece. It should be noted that as binocular microscopes, there are binocular microscopes of various structures such as stereoscopic microscopes and industrial / biological microscopes, but the present disclosure can be applied in any case.

[0109] In the binoculars of the present disclosure, visual contrast in binocular vision is also improved.

[0110] <Transmission-type optical articles for eyes>

[0111] As an example of an ophthalmic transmission type optical article, for example, Figure 2 An ophthalmic transmissive optical article 52 is utilized in the goggles 50 shown.

[0112] exist Figure 2 In the embodiment, the goggles 50 include an ocular transmissive optical article 52, a frame 56 on which the ocular transmissive optical article 52 is mounted, and a strap 58 for wearing the goggles 50 on the head of a user.

[0113] The frame 56 and the strap 58 can be the same as the frame and the strap used in the conventionally known goggles.

[0114] The transmissive optical article 52 for eye use has two regions of different colors, namely, a right-eye region 53 and a left-eye region 54. Figure 2In the example shown, as viewed from the user, the area to the right of the center of the ocular transmissive optical article 52 is the right-eye area 53 , and the area to the left of the center is the left-eye area 54 .

[0115] The L values ​​of the right-eye area 53 and the left-eye area 54 are * a * b * The color difference under the indication is more than 0.23 and less than 33.8.

[0116] When the color difference between the right-eye area 53 and the left-eye area 54 satisfies the above range, it is possible to obtain an effect of improving visual contrast.

[0117] The preferred ranges of visual transmittance and chromatic aberration of the right-eye area 53 and the left-eye area 54 are the same as the preferred ranges of chromatic aberration of the right-eye spectacle lens 11 and the left-eye spectacle lens 12 of the above-mentioned ophthalmic transmission optical article set (ophthalmic lens set) 10.

[0118] It should be noted that in Figure 2 In the example shown, the transmissive optical article 52 for eye is configured to include the right-eye region 53 and the left-eye region 54, but the present invention is not limited thereto, and the region of the transmissive optical article 52 for eye that includes at least a portion of the region corresponding to the field of view of the right eye of the user may be the right-eye region 53, and the region that includes at least a portion of the region corresponding to the field of view of the left eye of the user may be the left-eye region 54. That is, the transmissive optical article 52 for eye may include a region other than the right-eye region 53 and the left-eye region 54.

[0119] The ophthalmic transmissive optical article 52 is obtained by coloring at least one of the area of ​​the plastic substrate that is to be the right eye area 53 and the area that is to be the left eye area 54. That is, in the ophthalmic transmissive optical article 52, both the right eye area 53 and the left eye area 54 may be colored, or one may be colored and the other may be non-colored.

[0120] As the material of the plastic base material of the ophthalmic transmission optical article 52 , the same material as the lens base material described in the above-mentioned ophthalmic transmission optical article set (ophthalmic lens set) 10 can be used.

[0121] In addition, as a coloring method for the plastic base material of the ophthalmic transmission optical article 52, the same coloring method as that of the above-mentioned ophthalmic transmission optical article set (ophthalmic lens set) can be cited. In addition, as a dyeing liquid used for dyeing in the case of coloring by dyeing, the same liquid as the dyeing liquid described in the above-mentioned ophthalmic transmission optical article set (ophthalmic lens set) 10 can be used.

[0122] As a method for dyeing the surface of a plastic substrate to obtain an ophthalmic transmissive optical article 52 having a right-eye area 53 and a left-eye area 54, for example, the area to be one side is masked and the area to be the other side is dyed to a desired color using a coating method, immersion dyeing method, sublimation dyeing method, etc. similar to the above-mentioned dyeing method, then the other side area is masked and the area to be the one side area is dyed to another desired color using the same method.

[0123] Example

[0124] Hereinafter, the ophthalmic transmissive optical article set of the present disclosure will be described in further detail using examples and comparative examples, but the present embodiment is not limited to these examples at all.

[0125] (Preparation of staining solution)

[0126] First, a dye solution was prepared using a dye, a surfactant, and pure water.

[0127] A container was filled with pure water (1000 parts by mass), and FSP YELLOW FL dye (manufactured by Futaba Sangyo Co., Ltd.) (2.0 parts by mass) and NICCA SUNSOLT were added as yellow dye. (trade name, manufactured by Nikka Chemical Co., Ltd.) (1.0 parts by mass) was used as dyeing solution 1. In addition, a container was filled with pure water (1000 parts by mass), and FSP BLUE AULS dye (manufactured by Futaba Sangyo Co., Ltd.) (2.0 parts by mass) and NICCA SUNSOLT The liquid obtained by adding 1.0 parts by mass of 1000 parts of pure water to the container was used as dyeing liquid 2. In addition, a container was filled with pure water (1000 parts by mass), and FSP RED BL dye (manufactured by Futaba Sangyo Co., Ltd.) (2.0 parts by mass) and NICCA SUNSOLT (1.0 part by mass) and the resulting liquid was designated as dyeing liquid 3.

[0128] (Dyeing of plastic lenses and production of colored lenses 1)

[0129] Next, the three prepared dyeing solutions 1, 2 and 3 were heated to 90°C respectively, and a plastic lens with a refractive index of 1.60 (Nikon Light 3AS, size 75φ, center thickness 2 mm, manufactured by Nikon Essilor Co., Ltd.) was immersed in each of the dyeing solutions 1, 2 and 3 to produce a light reddish-purple lens.

[0130] Next, a polyurethane base film (impact resistance enhancing coating) having a thickness of about 1 μm, a silicon-based scratch resistance enhancing hard coating having a thickness of about 2 μm, a multilayer anti-reflective coating having a thickness of about 0.3 μm formed of inorganic oxides by vacuum evaporation, and a fluorine-based water- and oil-repellent film were sequentially arranged on the surface of the obtained colored lens, thereby obtaining the target colored lens 1.

[0131] (Dyeing of plastic lenses and production of colored lenses 2 to 5)

[0132] A plastic lens (Nikon Light 3AS) having a refractive index of 1.60 was immersed in the above two dyeing solutions 2 and 3, and a light bluish purple lens was produced in the same manner as the colored lens 1 except that the immersion time was changed. On the surface of the obtained colored lens, a polyurethane base film, a silicon-based scratch resistance-enhancing hard coating film, a multilayer antireflection coating film, and a water-repellent and oil-repellent film were sequentially laminated in the same manner as the colored lens 1, to obtain the target colored lenses 2 to 5.

[0133] (Dyeing of plastic lenses and production of colored lenses 6 to 19)

[0134] A plastic lens (Nikon Light 3AS) having a refractive index of 1.60 was immersed in any one or more of the three dyeing solutions 1, 2 and 3, which were the same as those of the colored lens 1, and lenses of various colors were produced in the same manner as the colored lens 1, except that the immersion time was changed. On the surface of the obtained colored lens, a polyurethane base film, a silicon-based scratch resistance-enhancing hard coating film, a multilayer antireflection coating film and a water-repellent and oil-repellent film were sequentially arranged in the same manner as the colored lens 1, and the target colored lenses 6 to 19 were obtained.

[0135] (Production of non-colored lenses 1 and 2)

[0136] On the surface of a plastic lens (Nikon Light 3AS) having a refractive index of 1.60, a polyurethane base film, a silicone scratch resistance improving hard coat film, a multilayer antireflection coating film and a water- and oil-repellent film were sequentially arranged in the same manner as the colored lens 1 to obtain the target non-colored lenses 1 and 2.

[0137] (Evaluation of lens)

[0138] The L of each lens produced was measured by the above method using a U-4100 spectrophotometer manufactured by Hitachi High-Technologies Corporation. * a * b * At this time, D65 light source (field of view 2 degrees) was used as the reference light.

[0139] Table 1 shows the visual transmittance Y, L * a * b *The color tone of the lens when the coordinates are observed under white LED light. The non-colored lens is recognized as light gray due to the color of the plastic material itself, the ultraviolet absorber and blue dye added to the lens, and the light transmission characteristics of the multi-layer anti-reflection coating.

[0140]

[0141] [Examples 1 to 10, Comparative Examples 1 to 3]

[0142] The right-eye lens and the left-eye lens were combined in the combination shown in Table 2 below to form the eye lens sets of the examples and comparative examples. The chromatic aberration ΔE00 and the absolute value ΔY of the difference in visual transmittance of each lens set are also shown.

[0143]

[0144] [evaluate]

[0145] Black Rondo rings were displayed on a white background of a liquid crystal display (CS Pola 600 manufactured by Essilor Instruments) for visual acuity measurement. The brightness of the liquid crystal display was measured using a spectrophotometer SR-3AR manufactured by Topconhaus and was 202 cd / m 2 The room was illuminated downward by white LED lights installed on the ceiling, and the illumination was 300 lux when measured upward at the location where the LCD display was installed.

[0146] The subjects used eyeglass lenses or contact lenses to correct their vision as needed, so that when observing from a distance of 2.5 meters from the liquid crystal display, the Rondo rings with a set value of 100% of brightness contrast could be clearly seen. It should be noted that the actual measured value of brightness contrast was 99%.

[0147] Next, the luminance contrast of the Rondo ring was set to 10%, and the Rondo ring was reduced to a size that the direction of the notch of the Rondo ring could barely be discerned. It should be noted that the actual measured value of the luminance contrast was 13%. It was confirmed whether the visual contrast was improved and the notch of the Rondo ring could be seen more clearly when each ophthalmic lens set was worn on the subject.

[0148] When each ophthalmic lens set was worn by the test subject, it was evaluated whether the visual contrast was improved and the Rondo ring could be seen more clearly. In order to eliminate the influence of the shape and frame of the spectacle lenses, the evaluation was based on the wearing of the non-colored lens pair shown in Comparative Example 1, and it was determined whether the chromatic aberration of the two spectacle lenses could be seen more clearly than in Comparative Example 1.

[0149] In addition, it was determined whether the glasses can be worn without causing concern for the chromatic aberration (competition of visual fields between the two eyes) and the difference in visual transmittance between the two glasses lenses.

[0150] Such evaluation was performed on 5 subjects, and the number of subjects who felt the effect was evaluated. The results are shown in Table 3.

[0151]

[0152] Compared with Comparative Example 1 with ΔE00 of 0.13, in Example 1 with ΔE00 of 0.40, 4 out of 5 people felt the visual contrast improvement effect. In addition, 5 out of 5 people felt that they could wear the glasses without worrying about the chromatic aberration and the difference in visual transmittance between the two glasses lenses. In Examples 2 to 10, the larger the ΔE00, the stronger the visual contrast improvement effect was felt, and 5 out of 5 people felt the visual contrast improvement effect.

[0153] In Examples 4 to 8, the lens color of the right eye was fixed, and the lens color of the left eye was changed in various ways. The preferred color combination differed depending on the preference of the subjects, but the visual contrast improvement effect was obtained regardless of the color combination.

[0154] In Comparative Example 2, where ΔE00 was 0.23, no visual contrast improvement effect was observed compared to Comparative Example 1. In Comparative Example 3, a visual contrast improvement effect was observed, but since the chromatic aberration ΔE00 between the two spectacle lenses was as large as 33.78, discomfort due to competition between the two visual fields occurred, and 5 out of 5 people determined that the glasses could not be worn.

[0155] Description of symbols

[0156] 1. Glasses

[0157] 10 Ophthalmic transmission optical article set (ophthalmic lens set)

[0158] 11 Glasses lens for right eye

[0159] 12 Glasses lens for left eye

[0160] 14. Eyeglass frames

[0161] 50 Goggles

[0162] 52 Transmissive optical articles for eyes

[0163] 53 Right eye area

[0164] 54 Left eye area

[0165] 56 Frame

[0166] 58 Drawstring

[0167] 60 Binoculars

[0168] 61R Shading tube for right eye

[0169] 61L Left Eye Shading Tube

[0170] 62R Right eyepiece set

[0171] 62L left eye eyepiece set

[0172] 64R Dach prism for right eye

[0173] 64L Dach prism for left eye

[0174] 66R Auxiliary prism for right eye

[0175] 66L Auxiliary prism for left eye

[0176] 68R Right eye objective lens set

[0177] 68L left eye objective lens set

Claims

1. A set of ophthalmic transmissive optical articles, comprising two ophthalmic transmissive optical articles, wherein: When CIE standard illuminant D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 between the two ophthalmic transmission optical articles calculated based on CIEDE2000 exceeds 0.23 and is less than 33.

8.

2. An ophthalmic lens set, comprising two ophthalmic lenses, wherein: When CIE standard illuminant D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 of the two ophthalmic lenses calculated based on CIEDE2000 exceeds 0.23 and is less than 33.

8.

3. The ophthalmic lens assembly according to claim 2, wherein: The ophthalmic lens is a spectacle lens or a contact lens.

4. An ophthalmic transmissive optical article having two regions of different colors, wherein: When CIE standard illuminant D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 between the two areas calculated based on CIEDE2000 exceeds 0.23 and is less than 33.

8.

5. A pair of glasses, wherein: The glasses include a left eye lens and a right eye lens. When CIE standard illuminant D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 between the two spectacle lenses calculated based on CIEDE2000 exceeds 0.23 and is less than 33.

8.

6. A pair of binoculars, wherein: The binoculars include an optical system for the left eye and an optical system for the right eye. When CIE standard illuminant D65 with a 2-degree field of view is used as reference light, the color difference ΔE00 between the two optical systems calculated based on CIEDE2000 exceeds 0.23 and is less than 33.8.

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