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1. (WO2013051481) OPTICAL FIBER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/051481    International Application No.:    PCT/JP2012/075131
Publication Date: 11.04.2013 International Filing Date: 28.09.2012
IPC:
G02B 6/00 (2006.01), G02B 6/44 (2006.01)
Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD. [JP/JP]; 5-33, Kitahama 4-chome, Chuo-ku, Osaka-shi, Osaka 5410041 (JP)
Inventors: HOMMA Yuya; (JP).
SOHMA Kazuyuki; (JP).
SAKABE Itaru; (JP)
Agent: HASEGAWA Yoshiki; SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA (Meiji Yasuda Life Bldg.) 9th fl., 1-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1000005 (JP)
Priority Data:
2011-220189 04.10.2011 JP
Title (EN) OPTICAL FIBER
(FR) FIBRE OPTIQUE
(JA) 光ファイバ
Abstract: front page image
(EN)An optical fiber (1) is provided with: a core (10) that is formed from glass; a cladding (20) that covers the circumference of the core (10), and is formed from a resin having a refractive index lower than the refractive index of the core (10); and an overcoating (30) that covers the circumference of the cladding (20), and is formed from an ultraviolet-curable resin. The optical fiber (1) has a numerical aperture (NA) of 0.25-0.45. The optical fiber (1) has a flexural rigidity of 1.5 N∙mm2 or less. If Y is the numerical aperture (NA) of the optical fiber (1) and X [N∙mm2] is the flexural rigidity of the optical fiber (1), then X and Y satisfy the relational expression Y > -1.066X + 0.503.
(FR)La présente invention porte sur une fibre optique (1) qui comporte : un cœur (10) qui est formé à partir de verre ; un gainage (20) qui recouvre la circonférence du cœur (10) et est formé d'une résine ayant un indice de réfraction inférieur à l'indice de réfraction du cœur (10) ; et une couche de finition (30) qui recouvre la circonférence du gainage (20) et est formée d'une résine durcissable aux ultraviolets. La fibre optique (1) a une ouverture numérique (NA) de 0,25-0,45. La fibre optique (1) a une rigidité en flexion de 1,5 N∙mm2 ou moins. Si Y est l'ouverture numérique (NA) de la fibre optique (1) et X [N∙mm2] est la rigidité en flexion de la fibre optique (1), alors X et Y satisfont l'expression de relation Y > -1,066X + 0,503.
(JA) 光ファイバ1は、ガラスからなるコア10と、コア10の屈折率より低い屈折率を有する樹脂からなりコア10の周囲を覆うクラッド20と、紫外線硬化型樹脂からなりクラッド20の周囲を覆うオーバーコート30とを備える。光ファイバ1の開口数NAは0.25~0.45である。光ファイバ1の曲げ剛性率は1.5N・mm以下である。光ファイバ1の開口数NAをYとし、光ファイバ1の曲げ剛性率をX[N・mm]としたとき、これらX,YがY>-1.066X+0.503となる関係式を満たす。
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)