JP2013238634A - Anti-glare optical element - Google Patents

Anti-glare optical element Download PDF

Info

Publication number
JP2013238634A
JP2013238634A JP2012109414A JP2012109414A JP2013238634A JP 2013238634 A JP2013238634 A JP 2013238634A JP 2012109414 A JP2012109414 A JP 2012109414A JP 2012109414 A JP2012109414 A JP 2012109414A JP 2013238634 A JP2013238634 A JP 2013238634A
Authority
JP
Japan
Prior art keywords
optical element
nm
transmittance
anti
wavelength
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2012109414A
Other languages
Japanese (ja)
Other versions
JP5749683B2 (en
Inventor
Hirobumi Oda
博文 小田
Masakazu Honda
正和 本多
Kanae Miyazawa
佳苗 宮澤
Original Assignee
Ito Kogaku Kogyo Kk
伊藤光学工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ito Kogaku Kogyo Kk, 伊藤光学工業株式会社 filed Critical Ito Kogaku Kogyo Kk
Priority to JP2012109414A priority Critical patent/JP5749683B2/en
Publication of JP2013238634A publication Critical patent/JP2013238634A/en
Application granted granted Critical
Publication of JP5749683B2 publication Critical patent/JP5749683B2/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Abstract

PROBLEM TO BE SOLVED: To provide an anti-glare optical element having an anti-glare effect as well as maintaining visibility for a target object when the element is applied to outdoor spectacles or the like and the spectacles are worn during driving a car, walking or the like at night or in the evening and morning (particularly early morning).SOLUTION: The anti-glare optical element comprises a transparent substrate 10 made of an organic glass material. The organic glass material contains a pigment that absorbs a specified wavelength, and the transparent substrate 10 is dyed with a yellow dye. In a transmittance curve of the anti-glare optical element measured with a spectral photometer, an average transmittance in a blue wavelength region is decreased by dying the transparent substrate. At least one valley in a range from a yellow wavelength region to a red wavelength region, and at least one valley in a visible light upper limit region adjoining to the red wavelength region are formed in the transmittance curve by incorporating the pigment that absorbs a specified wavelength.

Description

  The present invention relates to an antiglare optical element in which a transparent substrate is formed of an organic glass material.

  The anti-glare optical element of the present invention is suitable for glasses for outdoor use, particularly for glasses used for driving and walking in the evening, night and morning. The transmittance curve of the anti-glare optical element of the present invention is efficient for the light of oncoming vehicles such as headlights and street lights that are felt dazzling while transmitting the light required for traffic lights etc. during night driving and walking This is because it has a characteristic of shutting off.

  The anti-glare optical element according to the present invention can also be applied to optical elements other than the lenses of the above-mentioned outdoor-use spectacles that require selective transmission and selective blocking of a specific wavelength. Examples of such optical elements include front panels of various displays, camera lenses and filters, and the like.

  In the specification and claims of the present application, “transmittance curve” means “waveform curve of transmittance corresponding to a wavelength measured by a spectrophotometer”.

  In the present specification, the meaning of each wavelength region is as follows. The upper and lower limit values of each wavelength region are not absolute values having critical significance, but are index values for distinguishing each wavelength region.

  “Blue wavelength range”: A range of 400 to 500 nm including “purple”, “green blue”, and “blue green” in addition to “blue”.

  “Yellow wavelength region”: A range of 550 to 600 nm including “yellow-green” in addition to “yellow”.

  “Red wavelength range”: refers to a range of 600 to 750 nm including light in the wavelength range of “orange” in addition to “red”.

  “Visible light upper limit wavelength range”: A range of 750 to 830 nm adjacent to the right side of the red wavelength range.

  “Absolute visible light wavelength range”: refers to a wavelength range having a high specific luminous sensitivity (spectral luminous efficiency) of the human eye among the lower and upper wavelength ranges of visible light, and refers to a range of 400 to 650 nm.

  It is necessary from the viewpoint of safety at the same time that it has an anti-glare effect that can reduce unpleasant light from the eyes from the viewpoint of stress relief (improving comfort) at night and in the evening and morning car driving and walking. Appearance of outdoor spectacles that does not reduce the visibility of target objects.

  For example, the unpleasant light can include a headlamp that is too bright for an oncoming vehicle or a following vehicle, a taillight that is too bright for a preceding vehicle, or a streetlight that is too bright. On the other hand, those requiring visibility include signals, road markings / signs, road surface conditions, pedestrians / bicycles, other parked cars, car navigation systems, and the like.

  However, the present inventors do not know the outdoor glasses that can meet the above-mentioned demands.

  Although it does not affect the patentability (inventive step) of the present invention, Patent Document 1 discloses an invention relating to “organic glass coloring method” by dyeing applicable to the present invention. The inventions relating to “optical elements including an optical inorganic thin film (multilayer mirror film)” applicable to the present invention are described.

JP 2002-187967 A JP 2005-234188 A

  In view of the above, the present invention is applied to outdoor spectacles and has an anti-glare effect and visibility of an object when worn at night or in the evening / morning (especially early morning) when driving or walking. It aims at providing the glare-proof optical element which can be ensured.

  As a result of diligent development to solve the above problems, the present inventors dyed a transparent substrate together with addition of a specific wavelength absorbing dye to an organic glass material, and further combined with an optical multilayer thin film. Thus, the inventors have found that the above-mentioned problems can be achieved, and have come up with an anti-glare optical element comprising the following invention specific matters.

An antiglare optical element in which a transparent substrate is formed of an organic glass material,
The organic glass material contains a specific wavelength absorbing pigment, and the transparent substrate is dyed with a yellow dye,
In the transmission curve,
While the average transmittance in the blue wavelength range is reduced by dye coloring,
The specific wavelength absorption so that at least one valley portion is provided between the yellow wavelength range and the red wavelength range, and further, at least one valley portion is provided in the visible light upper limit wavelength range adjacent to the red wavelength range. It is formed by containing a pigment.

  When the above invention is expressed in a subordinate concept, it becomes an antiglare optical element consisting of the following invention specific matters.

An antiglare optical element in which a transparent substrate is formed of an organic glass material,
The organic glass material contains a specific wavelength absorbing pigment, and the transparent substrate is dyed with a yellow dye,
In the transmission curve,
The average transmittance in the wavelength range of 400 to 450 nm is 15 to 30%,
It has at least one valley part (hereinafter referred to as the first, second, and third valleys from the short wavelength side) in each of the wavelength ranges of 550 to 630 nm, 650 to 700 nm, and 750 to 800 nm. And

  The anti-glare optical element of the present invention is applied to outdoor spectacles and has an anti-glare effect and visibility of an object when worn at night or in the evening / morning (especially early morning) when driving or walking. It can be secured.

  Hereinafter, the background and reasons thereof will be specifically described.

  The light source of the headlamp is becoming a HID (high pressure mercury lamp) or a white LED instead of the halogen light.

  The light quantity of the halogen light increases as it goes to the long wavelength side (red wavelength range: 600 to 750 nm) (FIG. 1A). In contrast, HID has a large amount of light on the short wavelength side (blue wavelength range: 400 to 500 nm) (FIG. 1B), and white LEDs have a peak on the short wavelength side (blue wavelength range). (FIG. 1C).

  In view of these current conditions, the optical element of the present invention significantly reduces the light in the blue wavelength range (short wavelength side visible light) that has a large amount of energy in the headlamp and can easily feel glare. Is big.

  On the other hand, the spectral luminance characteristics of the LED in the traffic light and the light bulb in green, yellow, and red are as shown in FIGS. 2 (A) and 2 (B), respectively. In the present invention, the first valley is in the left wavelength region (550 to 630 nm) that does not match the green peak, the second valley is in the left wavelength region (650 to 700 nm) that does not match the red peak, and visible light. By providing the third valley in the upper limit wavelength region (750 to 800 nm) (see FIG. 2 thick line: set spectral transmittance), the light transmittance is reduced as a whole, and the antiglare effect is increased.

  Furthermore, by having the third valley in the visible light upper limit wavelength region (750 to 800 nm), it is possible to reduce glare at the time of sunrise or sunset.

  In the case of the first and second valleys, the valley depth in the above is preferably 5 to 20%, more preferably 10 to 15%, with respect to the left adjacent maximum value. If the difference is small, it is difficult to obtain a sufficient antiglare effect, and it is also difficult to obtain a signal color sharpening effect by cutting the adjacent wavelength of the signal color peak. If the depth of the valley is increased, the signal color is cut to the peak wavelength, and the signal visibility may be reduced.

  In addition, the difference between the third valley and the left maximum is 40 to 70%, more preferably 45 to 65%. If the difference is small, it is difficult to ensure the antiglare effect at the time of sunrise and sunset.

  The antiglare optical element of the present invention can further increase the transmittance of the transparent substrate in the absolute visible light wavelength region by providing a multilayer antireflection film, which contributes to an increase in object visibility. Further, by providing the multilayer red mirror film, it is possible to further increase the antiglare effect at the time of sunrise and sunset.

FIG. 3 is a spectral waveform diagram showing spectral luminance characteristics of (A) halogen light, (B) HID lamp, and (C) white LED as a standard for spectral characteristic design in the antiglare optical element of the present invention. It is a spectral waveform figure which similarly shows each spectral luminance characteristic and setting spectral characteristic of (A) LED signal and (B) bulb signal. It is a schematic sectional drawing which shows an example of the polarizing lens base | substrate which can apply this invention. It is explanatory sectional drawing of the casting molding method of the lens to which this invention is applied. It is a schematic sectional drawing of the spectacle lens provided with the multilayer anti-reflective film and / or multilayer red type mirror film to which this invention is applied. It is a spectral transmittance graph figure of the lens prepared in Examples 1-2. It is a spectral transmittance graph figure of the lens prepared in Examples 3-4. It is a spectral transmittance graph figure of the lens prepared in Comparative Examples 1-3. It is a figure of the hue circle for complementary color explanation. It is a spectral transmittance graph figure of a lens which gave only a multilayer red system mirror film (ML-1) and a multilayer antireflection film (ML-2).

  The case where the embodiment (optical element) of the present invention is applied to a transparent base material (lens base material) for spectacles without a polarizing element will be described. Naturally, the present invention is also applicable to a transparent base material 11 having a multilayer structure having a transparent base layer 15 on one or both sides of a thin plate-like polarizing element 13 as shown in FIG. is there. In the following description, “parts” indicating the number of added parts means “parts by mass”.

  The visible light long wavelength region cut lens of the present embodiment is molded by an injection molding method or the following casting molding method as shown in FIG.

  A molding die 27 is prepared by forming a cavity 25 by arranging an annular gasket 23 in the peripheral openings of the first and second molds 17 and 19 made of glass. Subsequently, a polymerizable liquid material is injected into the cavity 25 of the mold 27 through the liquid material injection port 23a, and is cured by polymerization or crosslinking by means such as thermosetting polymerization or ultraviolet curing (photo) polymerization. A transparent substrate is formed.

  And as an organic glass material which forms a transparent base material, polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET: polyester), polyurethane, aliphatic allyl carbonate resin, aromatic allyl carbonate resin, polythiol Examples thereof include urethane, episulfide resin, norbornene resin, polyimide, and polyolefin.

  In the present invention, at least one valley portion (hereinafter referred to as the first, second, and third valleys from the short wavelength side) in each of the wavelength ranges of 550 to 630 nm, 650 to 700 nm, and 750 to 800 nm. Each has a specific wavelength absorbing dye so as to have it. And normally, an ultraviolet absorber is added from the viewpoint of ultraviolet cut (400 nm or less) which is harmful light from the viewpoint of eye protection.

  Then, in addition to the specific wavelength absorbing dye and the ultraviolet absorber, an internal mold release agent, a deodorant, an antioxidant, a stabilizer, a polymerization initiator, and the like are appropriately added.

  1) Examples of the specific wavelength absorbing dye include tetraazaporphyrin-based metal complex compounds having an absorption peak wavelength of 595 nm or 760 nm.

The specific wavelength absorbing dye is added in an amount of 0.5 × 10 −4 to 5.0 × 10 −3 parts (preferably 0.8 × 10 −4 to 3.5 × 10) with respect to 100 parts of the resin raw material. -3 parts). If the addition amount of the specific wavelength absorbing dye is too small, it is difficult to ensure the antiglare effect. On the other hand, if the amount is excessive, the overall transmittance will be low and the target visibility will be lowered, and the base of the valley will spread and the transparency of the peak part of the signal color will also be reduced, making it difficult to ensure signal visibility. is there.

  2) A conventional thing can be used as said ultraviolet absorber. Examples include benzophenone, diphenyl acrylate, sterically hindered amine, salicylic acid ester, benzotriazole, hydroxybenzoate, cyanoacrylate, and hydroxyphenyl triazine.

  Among these, a benzotriazole type or a derivative thereof represented by the following structural formula (1) is desirable.

  The addition amount of these ultraviolet absorbers is 0.1 to 6 parts (preferably 1 to 4 parts) with respect to 100 parts of the resin raw material. If the added amount of the ultraviolet absorber is too small, it is difficult to cut the ultraviolet rays. On the other hand, if the amount is excessive, the overall transmittance becomes low, and it becomes difficult to ensure the object visibility.

  3) The transparent substrate thus molded is dyed by a conventional method using a yellow dye. For example, a dip dyeing method is used in which the transparent substrate after cast molding is immersed in an aqueous dye bath (aqueous solution) in which a disperse dye is dissolved. A kneading method in which a transparent substrate is injection-molded with an injection-molding material in which disperse dye is embedded may be used. In the case of a transparent substrate having a high refractive index (about 1.65 or more), it is desirable to use a dyeing (coloring) method which is one of the dyeing methods described in Patent Document 1.

  In addition, when dyeing | staining with the said aqueous dye bath, bath temperature and immersion time are about 85-95 degreeC x about 1-2 minutes, although it changes with the kind of base material and the kind and density | concentration of a disperse dye.

  In addition, the transparent base material dye | stained with a yellow dye absorbs the light of the blue wavelength range (400-500 nm) which is a complementary color (refer FIG. 9). As a result, the light transmittance in the blue wavelength range is lowered, and an antiglare effect for light in these wavelength ranges is obtained. Note that the yellow dye absorbs light in the blue wavelength range (400 to 500 nm), and as a result, the transparent substrate appears to be colored in a yellow color as a complementary color (see FIG. 9). In addition, FIG. 9 is quoted and edited from Katsuhiro Saito “Science of Light and Color” Kodansha, 2010.10, p96.

  The yellow dye that can be used here is not particularly limited as long as it can absorb a blue wavelength range of a predetermined range. For example, the following 1) azo series, 2) anthraquinone series, 3) nitro series, 4 It is possible to use disperse dyes of) methine and 5) mixtures. In addition, each following dye name is a brand name of each company described in a back bracket.

1) Azo-based disperse dyes:
KAYALON POLYESTER Yellow 4GE (manufactured by Nippon Kayaku Co., Ltd.)
KAYALON POLYESTER Yellow 5R-SE200 (manufactured by Nippon Kayaku Co., Ltd.)

2) Quinophthalone-based disperse dye DIANIX Yellow S-3G (manufactured by Dystar)
MIKETON POLYESTER Yellow 3GSL (Dystar)
MIKETON POLYESTER Yellow F3G (Dystar)
MIKETON POLYESTER Yellow GSL (Dystar)

3) Nitro-based disperse dye DIANIX Yellow AM-42 (manufactured by Dystar)
TERATOP Yellow GWL (Ciba Specialty Chemicals)

4) Methine-based disperse dye DIANIX Yellow 7GL (manufactured by Dystar)

5) Mixed disperse dye DIANIX Yellow PAL (Dystar)
CIBACET Yellow EL-F2G (Ciba Specialty Chemicals)
SUMIKARON Yellow E-RPD (manufactured by Sumika Chemtex Co., Ltd.)
SUMIKARON Yellow SE-RPD (manufactured by Sumika Chemtex Co., Ltd.)

  And as shown in FIG. 5, the multilayer optical thin film 31 is normally formed in the surface side of the transparent base material 10. As shown in FIG. The multilayer optical thin film 31 is a multilayer red mirror film or multilayer antireflection film. Although not shown, a multilayer red mirror film or antireflection film may be formed on the back surface of the transparent substrate 10 or only on the back surface.

  The multilayer optical thin film is designed such that, for example, as shown in Table 1 (ML-1) and Table 2 (ML-2), a transparent high refractive index layer and a low refractive index layer are repeated.

  As shown by ML-1 in FIG. 10, the multilayer red-based mirror film reflects the entire light beam on the longer wavelength side than the red-based wavelength region, and greatly reduces the transmittance thereof. For this reason, the anti-glare effect at the time of sunrise and sunset is increased.

  As shown by ML-2 in FIG. 10, the antireflection multilayer film reduces the reflectance of the entire light beam in the wavelength region longer than the wavelength of 650 nm, which cannot be absorbed by dyeing and increases the transmittance, so that the entire visible lens as a whole is visible. Increasing the transmittance in the light wavelength region (400 to 650 nm) increases the object visibility.

Here, examples of the film forming material for the multilayer optical thin film to be the multilayer antireflection film or multilayer red mirror film include the following.
Any one of Ti, Ta, Zr, Nb, Sb, Y, In, Sn, La, Ce, Mg, Al, Si, or an inorganic oxide containing two or more metal components,
Inorganic halides such as Mg, La, Al, Li (especially fluoride is desirable),

  The method of forming the multilayer inorganic vapor deposition film is not particularly limited, but uses a dry plating method (PVD method) such as a vacuum vapor deposition method (including an ion assist method), a sputtering method, an ion plating method, and an arc discharge method. To form.

  Then, one or more of the multilayer optical thin films described above may be vapor-deposited (film formation) with ion assist (see paragraphs 0006 and 0007 of JP-A-2003-202407).

The refractive index (n D ) of a typical vapor deposition material is shown below.
SiO 2 : 1.43 to 1.47
TiO 2: 2.2~2.4
ZrO 2 : 1.90 to 2.1
Ta 2 O 5 : 2.0 to 2.3
ITO: 2.0

  Note that, from the viewpoint of scratch resistance, the transparent substrate 10 is usually formed with a hard coat 33 inside the multilayer optical thin film 31 via a primer layer 35 made of a thermoplastic elastomer or the like (see FIG. 3). . Further, it is desirable to apply a fluorine-based water-repellent antifouling film 37 on the multilayer optical thin film 31.

  The hard coat is formed of a general-purpose silicone coating film. The hard coat is usually via a primer layer.

  The primer layer is preferably formed of a urethane-based or ester-based thermoplastic elastomer. Usually, metal oxide fine particles or the like are added to increase the refractive index in accordance with the refractive index of the substrate.

  The hard coat and primer layer can contain UV absorbers, leveling agents containing silicone surfactants, fluorine surfactants, and other modifiers to improve the smoothness of the coating film. is there. In addition, the thing similar to what was mix | blended with the above-mentioned organic glass material can be used for an ultraviolet absorber.

  The hard coat and primer layer coating (coating) method is appropriately selected from known methods such as dipping and spin coating.

  The application method of the water-repellent antifouling film 37 is appropriately selected from known methods such as a dipping method, a spin coating method, a brush coating method, and a spray method.

  Each optical element prepared as described above has an average transmittance of 15 to 30% in the wavelength range of 400 to 450 nm and a wavelength range of 550 to 630 nm, 650 to 700 nm, and The first, second and third valleys are provided in the respective wavelength ranges of 750 to 800 nm from the short wavelength side to increase the antiglare effect.

  Hereinafter, in order to confirm the effect of this invention, the Example performed with the comparative example is described. The dimensional specification of each transparent substrate was “outer diameter 75 mmΦ, center thickness 1.2 mmt”.

(1) Preparation of sample In Table 3, the ultraviolet absorber added to the base polymer in each Example / Comparative Example, the specific wavelength absorbing dye, and the dye dyed on the molded lens are displayed as symbols, and each drug is added. The amount and the dyeing (immersion) time are displayed.

  In Table 3, each symbol of (a) ultraviolet absorber, (b) specific wavelength absorbing dye, and (c) dye means a drug having the following contents (all are commercially available products).

(A) Ultraviolet absorber UV-01 ... 2- (4-Ethoxy-2-hydroxyphenyl) -2H-benzotoazole UV-02 ... 2- (2H-benzotriazol-2-yl) -4- (1,1,3,3-tetramethylbutyl) phenol UV-03 ... 2- (2-hydroxy-5-t-butylphenyl) -2H-benzotriazole
(b) Specific wavelength absorbing dye C-01 ... tetraazaporphyrin-based metal complex compound, absorption peak wavelength wave 595 nm
C-02: tetraazaporphyrin-based metal complex compound, absorption peak wavelength 760 nm
(c) Dye ・ DY-1 ... DIANIX Yellow AC-Enew (manufactured by Dystar)

<Examples 1-3, Comparative Examples 1-3>
(1) Preparation of polymerizable liquid material 100 parts of m-xylylene diisocyanate, dibutyltin dichloride as a curing agent: 0.1 part, alkyl phosphate ester (alcohol C8 to C12) salt as an internal release agent: 0.5 part, As a fragrance imparting agent, ethyl caproate: 0.2 part, an ultraviolet absorber shown in Table 1 and a specific wavelength absorbing dye were added, respectively, and stirred at a liquid temperature of 15 ° C. under a nitrogen gas atmosphere for 1 hour.

  Subsequently, 100 parts of 4-mercaptomethyl-3,6-dithia-1,8-octanedithiol was added, and the mixture was stirred for 1 hour at a liquid temperature of 15 ° C. in a nitrogen gas atmosphere.

Then, after deaeration for 1 hour while stirring at a liquid temperature of 15 ° C. and 133 Pa using a vacuum pump, it is filtered through a 1 μm filter, and a polythiourethane-based lens raw material liquid (polymerizable liquid) having a refractive index (n D ) of 1.67. Material) was prepared.

(2) Molding of lens First mold (made of glass, outer shape 80 mm, used surface curvature 66.16 mm, center thickness 4.0 mm), second mold (made of glass, outer shape 80 mm, used surface curvature 65.59 mm, center thickness 4) 0.0 mm) was wound with an adhesive tape so that the center distance was 2.0 mm, and a mold was prepared.

  As the adhesive tape, a commercially available adhesive tape in which a silicone-based adhesive was applied on a 38 μm thick PET film was used.

After injecting each polymerizable liquid material prepared in (1) into the above mold, the mixture was heated and polymerized under the following temperature conditions to perform lens molding. After polymerization, mold release from the mold was performed physically (mechanically) with a wedge-shaped tool.
“35 ° C. × 5 hours → 35 ° C. to 60 ° C. over 5 hours → 60 ° C. to 100 ° C. over 2 hours → 100 ° C. to 120 ° C. over 1 hour → 120 ° C. × 3 Time → cool from 120 ° C. to 40 ° C. over 4 hours. ”

(3) Dyeing After coloring by warming in the warm water in which the disperse dye was dissolved for the time shown in Table 3, heat treatment was performed to fix the dye.

  Thereafter, a silicone primer layer and a silicone hard coat were formed in this order from the substrate side.

<Example 4>
(1) Preparation of injection-molded dye-kneaded resin pellets The specific wavelength absorbing dyes and compounded disperse dyes shown in Table 1 are respectively represented by the indicated amount Iupilon CLS-3400 (Mitsubishi Engineering Plastics Co., Ltd .; polycarbonate containing UV absorber The resin pellets for injection molding were prepared by mixing with a master batch.

(2) Lens Injection Molding A mold for molding a lens having an outer diameter of 75 mmΦ and a center thickness of 2.1 mm is attached to a general-purpose vertical injection molding machine, and injection molded using the resin pellets prepared above.
Thereafter, a silicone primer layer and a silicone hard coat were formed in this order from the substrate side.

  Further, a multilayer red mirror film (vacuum deposited film) having a design configuration example shown in Table 1 was formed, and finally a fluorine-based water-repellent antifouling film was formed.

(2) Test method and results <Spectral transmittance curve>
With respect to the lens specimens of Examples and Comparative Examples prepared above, the transmittance was calculated according to the transmittance measuring method described in JIS-T7333.

  The measurement was performed using a spectrophotometer U-4100 (manufactured by Hitachi, Ltd.) under the conditions of a measurement wavelength of 380 to 780 nm, a scan speed of 600 nm / min, a sampling interval of 1 nm, and a slit of 5 nm.

  The transmittance curves as the measurement results are shown in FIGS. 6 to 8, and Table 4 shows the minimum values of the valleys and the average transmittances of the wavelength ranges of 400 to 450 nm, 500 to 600 nm, and 400 to 650 nm.

  From these results, each example has a low average transmittance on the short wavelength side (400 to 450 nm) of the blue wavelength range, which is the main cause of glare, but the signal visibility is lower than that of blue. The average transmittance in the green to yellow wavelength region (500 to 600 nm) is high. Furthermore, the first to third valleys are formed so that the transmittance peak comes in each of the red wavelength ranges of the LED signal and the light bulb signal that are most required to be visible. Furthermore, the average transmittance in the absolute visible light wavelength region (400 to 650 nm) is as high as 60% or more, and the object visibility at night can be ensured.

<Practical panel test>
Ten panelists (monitors) who drive or walk (walk) at night or early in the morning were asked to wear and use (trial) the glasses with the lenses of each example and comparative example assembled (trial period: November 2011-February 2012). After that, we asked for answers to the questions for each evaluation item (a) and (b) below.

(a) Was it possible to reduce glare from car headlights etc. by wearing the glasses at night?
(b) Was it possible to see the necessary information (traffic lights, pedestrians, etc.) without damaging the glasses by wearing the glasses in the early morning?

And based on the said answer, performance evaluation is performed on the following evaluation criteria, and those results are shown in Table 5.
◎: 8 or more, ○: 5-7, Δ: 2-4, ×: 1 or less.

Further, for each item (a) and (b), ◎: 3 points, ◯: 2 points, Δ: 1 point, x: 0 points, and total evaluation was performed based on the following evaluation criteria.
A: 6 points or more, B: 4 points or more, X: Less than 4 points.

  From Table 5 showing the results, the following could be confirmed.

  1) Regarding the anti-glare effect during night driving and walking, both the examples and comparative examples are excellent.

  2) Regarding the visibility of the target object during driving and walking in the early morning, the example is excellent, but the comparative example has a problem.

DESCRIPTION OF SYMBOLS 10 Transparent base material 31 Multilayer optical thin film 33 Hard coat 35 Primer layer 37 Water-repellent antifouling film

Claims (8)

  1. An antiglare optical element in which a transparent substrate is formed of an organic glass material,
    The organic glass material contains a specific wavelength absorbing pigment, and the transparent substrate is dyed with a yellow dye,
    In the transmission curve,
    While the average transmittance in the blue wavelength region is reduced by the staining,
    The specific wavelength absorption so that at least one valley portion is provided between the yellow wavelength range and the red wavelength range, and further, at least one valley portion is provided in the visible light upper limit wavelength range adjacent to the red wavelength range. Formed by the inclusion of a pigment,
    An anti-glare optical element characterized by that.
  2. An antiglare optical element in which a transparent substrate is formed of an organic glass material,
    The organic glass material contains a specific wavelength absorbing pigment, and the transparent substrate is dyed with a yellow dye,
    In the transmission curve,
    The average transmittance in the wavelength range of 400 to 450 nm is 15 to 30%,
    It has at least one valley part (hereinafter referred to as the first, second, and third valleys from the short wavelength side) in each of the wavelength ranges of 550 to 630 nm, 650 to 700 nm, and 750 to 800 nm. Anti-glare optical element.
  3.   The minimum transmittance of the first and second valleys is 5 to 20% different from the adjacent left maximum transmittance, and the difference from the adjacent maximum transmittance of the third valley is 40 to 40%. The antiglare optical element according to claim 2, which is in the range of 70%.
  4.   4. The antiglare optical element according to claim 3, wherein the transmittance curve has a transmittance of 75% or more in a wavelength range of 500 to 600 nm.
  5.   The antiglare according to claim 2, 3 or 4, wherein the total average transmittance in the absolute visible light wavelength region (400 to 650 nm) is 60% or more, and the transparent base material has an ultraviolet cut specification. Optical element.
  6.   Furthermore, at least one of the said transparent base material is equipped with the multilayer anti-reflective film, The whole transmittance | permeability of an absolute visible light wavelength range is increased, The anti-glare in any one of Claims 1-5 characterized by the above-mentioned. Optical element.
  7.   The anti-glare optical element according to claim 6, wherein a multilayer red mirror film is provided on at least one of the transparent substrates, and an average transmittance in a wavelength region of 700 nm or more is 30% or less.
  8.   The antiglare optical element according to claim 1, wherein the transparent substrate has a polarization specification.
JP2012109414A 2012-05-11 2012-05-11 Anti-glare optical element Active JP5749683B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012109414A JP5749683B2 (en) 2012-05-11 2012-05-11 Anti-glare optical element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012109414A JP5749683B2 (en) 2012-05-11 2012-05-11 Anti-glare optical element

Publications (2)

Publication Number Publication Date
JP2013238634A true JP2013238634A (en) 2013-11-28
JP5749683B2 JP5749683B2 (en) 2015-07-15

Family

ID=49763726

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012109414A Active JP5749683B2 (en) 2012-05-11 2012-05-11 Anti-glare optical element

Country Status (1)

Country Link
JP (1) JP5749683B2 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015118122A (en) * 2013-12-16 2015-06-25 東海光学株式会社 Spectacle lens and spectacles
WO2015140859A1 (en) * 2014-03-17 2015-09-24 パナソニックIpマネジメント株式会社 Display apparatus
KR20170016842A (en) 2014-06-11 2017-02-14 미츠비시 가스 가가쿠 가부시키가이샤 Polycarbonate resin composition, and molded article and method for manufacturing same
JPWO2015151312A1 (en) * 2014-03-31 2017-04-13 積水化成品工業株式会社 Optical film and use thereof
WO2017209128A1 (en) * 2016-06-02 2017-12-07 株式会社ニコン・エシロール Eyeglass lens
WO2017209104A1 (en) * 2016-06-02 2017-12-07 株式会社ニコン・エシロール Eyeglass lens
WO2018155213A1 (en) * 2017-02-27 2018-08-30 東海光学株式会社 Plastic spectacle lens and spectacles
WO2018181911A1 (en) * 2017-03-31 2018-10-04 ホヤ レンズ タイランド リミテッド Spectacle lens
WO2018230513A1 (en) * 2017-06-14 2018-12-20 株式会社トクヤマ Primer composition for optical articles, and laminate
US10495795B2 (en) 2014-05-23 2019-12-03 Eyesafe, Llc Light emission reducing compounds for electronic devices

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62254119A (en) * 1986-04-28 1987-11-05 Hoya Corp Protective spectacle lens
JPH01501172A (en) * 1986-10-16 1989-04-20
JPH05202109A (en) * 1991-07-10 1993-08-10 Seiko Epson Corp Transparent plastic material
JPH07306387A (en) * 1994-05-12 1995-11-21 Tokai Kogaku Kk Lens for light shielding
JP2000219755A (en) * 1998-11-26 2000-08-08 Mitsui Chemicals Inc Dyed molding
JP2003149605A (en) * 2001-11-16 2003-05-21 Nippon Sheet Glass Co Ltd Glare-proof optical article
JP2011145341A (en) * 2010-01-12 2011-07-28 Talex Optical Co Ltd Allyldiglycol carbonate resin lens for eyeglasses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62254119A (en) * 1986-04-28 1987-11-05 Hoya Corp Protective spectacle lens
JPH01501172A (en) * 1986-10-16 1989-04-20
JPH05202109A (en) * 1991-07-10 1993-08-10 Seiko Epson Corp Transparent plastic material
JPH07306387A (en) * 1994-05-12 1995-11-21 Tokai Kogaku Kk Lens for light shielding
JP2000219755A (en) * 1998-11-26 2000-08-08 Mitsui Chemicals Inc Dyed molding
JP2003149605A (en) * 2001-11-16 2003-05-21 Nippon Sheet Glass Co Ltd Glare-proof optical article
JP2011145341A (en) * 2010-01-12 2011-07-28 Talex Optical Co Ltd Allyldiglycol carbonate resin lens for eyeglasses

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015118122A (en) * 2013-12-16 2015-06-25 東海光学株式会社 Spectacle lens and spectacles
WO2015140859A1 (en) * 2014-03-17 2015-09-24 パナソニックIpマネジメント株式会社 Display apparatus
US10209518B2 (en) 2014-03-17 2019-02-19 Panasonic Intellectual Property Management Co., Ltd. Display apparatus
JPWO2015140859A1 (en) * 2014-03-17 2017-04-06 パナソニックIpマネジメント株式会社 Display device
JPWO2015151312A1 (en) * 2014-03-31 2017-04-13 積水化成品工業株式会社 Optical film and use thereof
US10495795B2 (en) 2014-05-23 2019-12-03 Eyesafe, Llc Light emission reducing compounds for electronic devices
US10035899B2 (en) 2014-06-11 2018-07-31 Mitsubishi Gas Chemical Company, Inc. Polycarbonate resin composition, and molded article and method for manufacturing same
KR20170016842A (en) 2014-06-11 2017-02-14 미츠비시 가스 가가쿠 가부시키가이샤 Polycarbonate resin composition, and molded article and method for manufacturing same
WO2017209128A1 (en) * 2016-06-02 2017-12-07 株式会社ニコン・エシロール Eyeglass lens
WO2017209104A1 (en) * 2016-06-02 2017-12-07 株式会社ニコン・エシロール Eyeglass lens
WO2018155213A1 (en) * 2017-02-27 2018-08-30 東海光学株式会社 Plastic spectacle lens and spectacles
WO2018181911A1 (en) * 2017-03-31 2018-10-04 ホヤ レンズ タイランド リミテッド Spectacle lens
WO2018230513A1 (en) * 2017-06-14 2018-12-20 株式会社トクヤマ Primer composition for optical articles, and laminate

Also Published As

Publication number Publication date
JP5749683B2 (en) 2015-07-15

Similar Documents

Publication Publication Date Title
CN104040412B (en) There are the glasses that colourity strengthens
US7377639B2 (en) Laminated functional wafer for plastic optical elements
US4043637A (en) Photochromic light valve
JP4779297B2 (en) Plastic molded body having photochromic properties and / or polarization properties
JP2001517324A (en) Light filtering of contact lens
EP0717763A1 (en) Photochromically tinted objects
US5922246A (en) Eyeglass lens and molded material of synthetic resin having transmittance minimum no greater than 25% at 550-585 nm
US8210678B1 (en) Multiband contrast-enhancing light filter and polarized sunglass lens comprising same
US5235358A (en) Light filter for improving vision
CN1117119C (en) Molded synthetic resin
US7688524B2 (en) Laser protective eyewear having improved glare protection
JPWO2003008171A1 (en) Method for manufacturing resin lens and resin lens
ES2407969T3 (en) Molded laminate for optical use and manufacturing method
US20040263777A1 (en) Photochromic light-polarizing lens for sunglass and method for producing the same
US7901074B2 (en) Lens for safety glasses
US20050009964A1 (en) Photochromic plate containing melanin
KR101879565B1 (en) Contact lenses displaying reduced indoor glare
JP5204982B2 (en) Photochromic molding composition and articles produced therefrom
FR2428264A1 (en) Protective material against light
US20060114573A1 (en) Optical element for use in eye protection devices and methods for its manufacture
JP4819460B2 (en) Optical article
US8343391B2 (en) Compositions for the preparation of composite photochromic polycarbonate lenses
JP5996836B2 (en) Laminated glass lens for glasses
EP0756183B1 (en) Lens for eyeglasses
ES2455998T3 (en) Glasses and glasses lens

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140313

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150114

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150203

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150317

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20150414

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20150514

R150 Certificate of patent or registration of utility model

Ref document number: 5749683

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250