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1. (WO2017110304) OPTICAL GLASS, OPTICAL ELEMENT, AND OPTICAL DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/110304 International Application No.: PCT/JP2016/083707
Publication Date: 29.06.2017 International Filing Date: 14.11.2016
IPC:
C03C 3/068 (2006.01) ,G02B 1/00 (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
3
Glass compositions
04
containing silica
062
with less than 40% silica by weight
064
containing boron
068
containing rare earths
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
Applicants:
光ガラス株式会社 HIKARI GLASS CO., LTD. [JP/JP]; 秋田県湯沢市駒形町字三又白幡155 155, Aza Mitsumatashirahata, Komagata-cho, Yuzawa-shi, Akita 0120104, JP
Inventors:
井口 徳晃 IGUCHI Noriaki; JP
Agent:
特許業務法人 湘洋内外特許事務所 SHOYO INTELLECTUAL PROPERTY FIRM; 神奈川県横浜市西区北幸二丁目15番1号 東武横浜第2ビル6階 6F, Tobu Yokohama 2ND Bldg., 15-1, Kitasaiwai 2-chome, Nishi-ku, Yokohama-shi, Kanagawa 2200004, JP
Priority Data:
2015-25126024.12.2015JP
Title (EN) OPTICAL GLASS, OPTICAL ELEMENT, AND OPTICAL DEVICE
(FR) VERRE OPTIQUE, ÉLÉMENT OPTIQUE ET DISPOSITIF OPTIQUE
(JA) 光学ガラス、光学素子、及び光学装置
Abstract:
(EN) The purpose of the present invention is to provide a low-cost optical glass that has a high refractive index, low dispersion, and good transmittance. Provided is an optical glass characterized by containing, in mass percent, 5-9% of SiO2, 12-15% of B2O3, 50-54% of La2O3, 1-9% of Gd2O3, 4-8% of Nb2O5, 3-8% of TiO2, 0.5-4% of WO3, 3-7% of ZrO2, and by substantially not containing ZnO.
(FR) La présente invention a pour objet un verre optique peu coûteux qui a un indice de réfraction élevé, une faible dispersion et une bonne transmittance. L'invention concerne un verre optique caractérisé en ce qu'il contient, en pourcentage en masse, 5 à 9% de SiO2, 12 à 15% de B2O3, 50 à 54% de La2O3, 1 à 9% de Gd2O3, 4 à 8% de Nb2O5, 3 à 8% de TiO2, 0,5 à 4% de WO3, 3 à 7% de ZrO2, et en ce qu'il ne contient sensiblement pas de ZnO.
(JA) 高屈折率、低分散でありながら透過率が良好であり、低コストな光学ガラスを提供すること。 質量%で、SiO 5~9%、B 12~15%、La 50~54%、Gd 1~9%、Nb 4~8%、TiO 3~8%、WO 0.5~4%、ZrO 3~7%、の各成分を含有し、かつ、ZnOを実質的に含有しないことを特徴とする光学ガラス。
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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, JP, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)