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1. (WO2018021222) OPTICAL GLASS AND NEAR-INFRARED CUT FILTER
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Pub. No.: WO/2018/021222 International Application No.: PCT/JP2017/026640
Publication Date: 01.02.2018 International Filing Date: 24.07.2017
IPC:
C03C 4/08 (2006.01) ,C03C 3/23 (2006.01) ,C03C 3/247 (2006.01) ,G02B 5/22 (2006.01)
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
4
Compositions for glass with special properties
08
for glass selectively absorbing radiation of specified wave lengths
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
12
Silica-free oxide glass compositions
23
containing halogen and at least one oxide, e.g. oxide of boron
C CHEMISTRY; METALLURGY
03
GLASS; MINERAL OR SLAG WOOL
C
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
3
Glass compositions
12
Silica-free oxide glass compositions
23
containing halogen and at least one oxide, e.g. oxide of boron
247
containing fluorine and phosphorus
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
20
Filters
22
Absorbing filters
Applicants:
AGC株式会社 AGC INC. [JP/JP]; 東京都千代田区丸の内一丁目5番1号 5-1, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008405, JP
Inventors:
犬塚 信夫 INUZUKA Nobuo; JP
坂上 貴尋 SAKAGAMI Takahiro; JP
Agent:
特許業務法人サクラ国際特許事務所 SAKURA PATENT OFFICE, P.C.; 東京都千代田区内神田一丁目18番14号 ヨシザワビル Yoshizawa Bldg., 18-14, Uchikanda 1-chome, Chiyoda-ku, Tokyo 1010047, JP
Priority Data:
2016-15015529.07.2016JP
Title (EN) OPTICAL GLASS AND NEAR-INFRARED CUT FILTER
(FR) VERRE OPTIQUE ET FILTRE COUPE-RAYONS DANS LE PROCHE INFRAROUGE
(JA) 光学ガラスおよび近赤外線カットフィルタ
Abstract:
(EN) The present invention provides an optical glass and a near-infrared cut filter that reliably cut near-ultraviolet rays and have a high transmittance of light in the visible range (in particular, blue light). This optical glass absorbs infrared and ultraviolet rays, and is characterized in that an approximate straight line that represents the relationship between wavelength and transmittance and that is calculated in a wavelength range between 3 nm lower and 3 nm higher than a wavelength at which light transmittance is 50% in a wavelength band of 300-450 nm, has an inclination of 3 or more.
(FR) La présente invention concerne un verre optique et un filtre coupe-rayons dans le proche infrarouge qui coupent de manière fiable des rayons ultraviolets proches et qui présentent une transmittance élevée de la lumière dans la plage visible (en particulier, la lumière bleue). Ce verre optique absorbe les rayons infrarouges et ultraviolets, et est caractérisé en ce qu'une ligne droite approximative, qui représente la relation entre la longueur d'onde et la transmittance et qui est calculée dans une plage de longueurs d'onde comprise entre 3 nm inférieur et 3 nm supérieur à une longueur d'onde à laquelle la transmittance de lumière est de 50 % dans une bande de longueur d'onde de 300 à 450 nm, a une inclinaison d'au moins 3.
(JA) 近紫外線を確実にカットし、かつ可視領域の光(特に青色光)の透過率の高い光学ガラスおよび近赤外線カットフィルタの提供。赤外線および紫外線を吸収する光学ガラスであって、光学ガラスは、300nm~450nmの波長帯域で光の透過率が50%となる波長の前後3nmの波長の範囲で算出される、波長と透過率との近似直線の傾きが3以上であることを特徴とする。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)