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公开(公告)号：US10324240B2
公开(公告)日：2019-06-18
申请号：US15454521
申请日：2017-03-09
申请人： AGC Inc.
发明人： Kazuhiko Shiono , Asana Yoshioka , Shoko Suzuki , Hiroki Hotaka
摘要： To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.
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公开(公告)号：US10746908B2
公开(公告)日：2020-08-18
申请号：US15819670
申请日：2017-11-21
申请人： AGC Inc.
发明人： Yoshiharu Ooi , Hiroshi Kumai , Kazuhiko Shiono , Hiroki Hotaka
IPC分类号： G02B5/20 , G02B5/22 , G02B5/28 , C03C17/42 , C09B57/00 , C03C17/00 , C03C4/08 , G02B1/04 , G03B11/00
摘要： There is provide an optical filter suppressed in incidence angle dependence and having high visible light transmittance. The optical filter includes: an absorption layer containing a first near-infrared absorbent (DA) having a maximum absorption wavelength λ(DA_Tmin) in wavelengths of 685 to 715 nm and a second near-infrared absorbent (DB) having a maximum absorption wavelength λ(DB_Tmin) in wavelengths of 705 to 725 nm or wavelengths of more than 725 nm and 900 nm or less on a side of a wavelength longer than the maximum absorption wavelength λ(DA_Tmin), and satisfying specific light absorption characteristics; and a reflection layer including a dielectric multilayer film satisfying specific reflection characteristics in wavelengths of 700 to 1150 nm, wherein a transmittance of the reflection layer in a boundary region of visible light and near-infrared light and a transmittance of the absorption layer have a specific relation.
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公开(公告)号：US10745572B2
公开(公告)日：2020-08-18
申请号：US16263825
申请日：2019-01-31
申请人： AGC Inc.
发明人： Kazuhiko Shiono , Keigo Matsuura , Hiroki Hotaka
IPC分类号： C09D5/32 , G02B1/115 , H04N5/335 , G02B1/113 , G02B5/28 , C09D201/00 , C09D7/41 , C09B23/10 , C09B67/22 , C09B57/00 , C09D145/00 , C09D167/00 , C09D169/00 , G02B5/20 , G02B5/22 , H01L27/146 , C08K5/00 , C08K5/3415 , C08K5/3417
摘要： An optical filter includes an absorption layer containing a near-infrared absorbing dye with an absorption characteristic in dichloromethane satisfying (i-1) to (i-3). (i-1) In an absorption spectrum of a wavelength of 400 to 800 nm, there is a maximum absorption wavelength λmax in 670 to 730 nm. (i-2) Between a maximum absorption coefficient εA of light with a wavelength of 430 to 550 nm and a maximum absorption coefficient εB of light with a wavelength of 670 to 730 nm, the following relational expression: εB/εA≥65 is established. (i-3) In a spectral transmittance curve, the difference between a wavelength λ80 with which the transmittance becomes 80% on a shorter wavelength side than the maximum absorption wavelength with the transmittance at the maximum absorption wavelength λmax set to 10% and the maximum absorption wavelength λmax is 65 nm or less.
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公开(公告)号：US11709298B2
公开(公告)日：2023-07-25
申请号：US16808480
申请日：2020-03-04
申请人： AGC Inc.
发明人： Kazuhiko Shiono , Nanako Nishimoto , Sayuri Yamada , Hiroki Hotaka , Satoshi Okada , Keigo Matsuura
CPC分类号： G02B5/282 , C09B23/083 , C09K3/00 , G02B5/208
摘要： An optical filter includes: an absorption layer including a first near-infrared absorbing dye (D1), a second near-infrared absorbing dye (D2), and a transparent resin; and a reflection layer including a dielectric multilayer film. The dye (D1) and the dye (D2) are squarylium compounds satisfying following (1) to (3). (1) The dye (D1) has a maximum absorption wavelength λmax(D1) within a range of 680 to 730 nm, and the difference between a wavelength at which a transmittance is 80% on the shorter wavelength side than λmax(D1) when the concentration is adjusted such that a transmittance at λmax(D1) is 10%, and λmax(D1) is 100 nm or less. (2) The dye (D2) has a maximum absorption wavelength λmax(D2) within a range of 720 to 770 nm. (3) A value obtained by subtracting λmax(D1) from λmax(D2) is 30 nm or more and 85 nm or less.
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公开(公告)号：US10683233B2
公开(公告)日：2020-06-16
申请号：US15667191
申请日：2017-08-02
申请人： AGC Inc.
发明人： Shuhei Nomura , Kazutaka Ono , Yoshiharu Ooi , Hiroki Hotaka
IPC分类号： B32B15/04 , B32B17/06 , C03C4/08 , C03C3/085 , C03C3/087 , C03B25/02 , C03C27/00 , B32B9/04 , B32B7/12 , C03C3/091 , C03B17/06 , C03C3/093 , C03C17/25 , G02B5/20 , G02B5/22
摘要： A light selective transmission type glass 10 according to the present invention includes: a glass substrate 12; and a light selective transmission layer 11 provided on at least one main surface of the glass substrate 12. The glass substrate 12 has an average thermal expansion coefficient α50/100 at 50° C. to 100° C. of 2.70 ppm/° C. to 3.20 ppm/° C., an average thermal expansion coefficient α200/300 at 200° C. to 300° C. of 3.45 ppm/° C. to 3.95 ppm/° C., a value α200/300/α50/100 obtained by dividing the average thermal expansion coefficient α200/300 at 200° C. to 300° C. by the average thermal expansion coefficient α50/100 at 50° C. to 100° C. of 1.20 to 1.30, and a content of an alkali metal oxide being 0% to 0.1%.
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公开(公告)号：US10408979B2
公开(公告)日：2019-09-10
申请号：US15071446
申请日：2016-03-16
申请人： AGC Inc.
摘要： Provided is an optical filter, which includes a light-absorbing layer and a light-reflecting layer and satisfies the following requirements: (i) in a spectral transmittance curve at an incident angle of 0°, an average transmittance over the 430-620 nm wavelength range is ≥80%, an average transmittance over the 430-450 nm wavelength range is ≥76%, an average transmittance over the 735-1100 nm wavelength range is ≤5%, and an average transmittance over the 350-395 nm wavelength is ≤5%; and (ii) there is a wavelength λ0(UV) with transmittance of 50% in the 400-425 nm wavelength range in the spectral transmittance curve at the incident angle of 0°, there is a wavelength λ30(UV) with transmittance of 50% in the 400-425 nm wavelength range in a spectral transmittance curve at an incident angle of 30°, and an absolute value of a difference between the wavelengths, |λ0(UV)−λ30(UV),| is ≤5 nm.
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公开(公告)号：US10228500B2
公开(公告)日：2019-03-12
申请号：US15466118
申请日：2017-03-22
申请人： AGC Inc.
发明人： Yoshiharu Ooi , Kazuhiko Shiono , Asana Yoshioka , Shoko Suzuki , Hiroki Hotaka
摘要： An optical filter includes: an absorption layer containing a first near-infrared absorbent having a maximum absorption in a wavelength of 660 to 785 nm, and satisfying (i-1) in 620 to 670 nm, on a shorter wavelength side of a wavelength λ (DA_Tmin) exhibiting the maximum absorption, there is a wavelength λSh (DA_T50%) at which a transmittance becomes 50%; and a reflection layer formed of a dielectric multilayered film satisfying (ii-1) in 670 to 1200 nm, there is a near-infrared reflection band in which a transmittance with respect to light at an incident angle of 0° becomes 50% or less, and a wavelength λSh (A2_Ts50%) at which a transmittance of light of an s polarization component out of light at an incident angle of 30° becomes 50%, on a shorter wavelength side of the near-infrared reflection band, is positioned on a longer wavelength side of the wavelength λSh (DA_T50%).
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公开(公告)号：US11993718B2
公开(公告)日：2024-05-28
申请号：US16940607
申请日：2020-07-28
申请人： AGC Inc.
发明人： Shoko Suzuki , Kazuhiko Shiono , Sayuri Yamada , Hiroki Hotaka
CPC分类号： C09B67/0063 , C09B23/166 , G02B5/208 , H04N25/11
摘要： The present invention relates to an optical filter containing: an absorption layer containing a near-infrared absorbing dye satisfying the following (i-1) to (i-5), and a transparent resin; and a reflection layer, and satisfying the following (ii-1);
(i-1) λmax(A) TR is in a wavelength range of 760 to 900 nm;
(i-2) T435-480ave (A) TR and T480-590ave (A) TR are both 90% or more.
(i-3) λmax(A) DCM is in a wavelength range of 760 to 900 nm.
(i-4) T435-480ave (A) DCM is 95% or more and T480-590ave (A) DCM is 97% or more.
(i-5) a difference between T435-480ave (A) DCM and T435-480ave (A) TR, and a difference between T480-590ave (A) DCM and T480-590ave (A) TR are 10.5% or less.
(ii-1) an average transmittance of light in the wavelength range of 800 to 900 nm is 5% or less at an incident angle of 60 degrees.-
公开(公告)号：US11693163B2
公开(公告)日：2023-07-04
申请号：US17017031
申请日：2020-09-10
申请人： AGC Inc.
CPC分类号： G02B5/208 , C09B57/007 , G01J1/0488 , G02B1/04 , G02B5/22 , H01L27/14625
摘要： An optical filter includes an absorption layer which increases a visible light transmittance while having a good near-infrared blocking characteristic, and which is excellent in not only adhesiveness with respect to a layer to be abutted, but also light resistance. The optical filter includes: an absorption layer containing a near-infrared absorbing dye containing a squarylium-based dye and a transparent resin; and an inorganic or organic material in contact with the absorption layer. The squarylium-based dye has a squarylium skeleton and condensed ring structures bonded thereto respectively on both sides thereof, the condensed ring structures each including a benzene ring and a nitrogen atom as an annular atom, each benzene ring having an urethane structure in the second position.
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公开(公告)号：US11029457B2
公开(公告)日：2021-06-08
申请号：US16369653
申请日：2019-03-29
申请人： AGC Inc.
发明人： Kazuhiko Shiono , Asana Yoshioka , Shoko Suzuki , Hiroki Hotaka
摘要： To provide an optical filter having shielding effects against near ultraviolet rays and near infrared rays. An optical filter comprising a transparent resin body having a single layer or multilayer structure, and containing a near ultraviolet absorbing dye (U) which is a compound represented by the following formula (U) and which has an absorption maximum at a wavelength of from 370 to 425 nm and has a molar absorptivity at the maximum absorption wavelength of at least 50,000 [L/(mol·cm)], and a near infrared absorbing dye (A) which has an absorption maximum at a wavelength of from 600 to 800 nm: In the formula (U), Y is an oxygen atom, a methylene group or a dimethylene group, R1 is a monovalent hydrocarbon group which may have a substituent, or the like, R2 to R5 are a hydrogen atom, an alkyl group, an alkoxy group or the like, and X is a bivalent group represented by any one of the formulae (X1) to (X5) or the like.
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