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1. (WO2009132539) OPTICAL LENS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/132539    International Application No.:    PCT/CN2009/070904
Publication Date: 05.11.2009 International Filing Date: 20.03.2009
G02B 13/00 (2006.01), G02B 9/12 (2006.01), G02B 26/10 (2006.01)
Applicants: HAN'S LASER TECHNOLOGY CO., LTD. [CN/CN]; No.9, Xinxi Road, Northern Section, Hi-tech Industrial Park, Nanshan Shenzhen, Guangdong 518057 (CN) (For All Designated States Except US).
GAO, Yunfeng [CN/CN]; (CN) (For US Only).
LI, Jiaying [CN/CN]; (CN) (For US Only).
BAO, Ruiwu [CN/CN]; (CN) (For US Only).
SUN, Bo [CN/CN]; (CN) (For US Only).
ZHOU, Chaoming [CN/CN]; (CN) (For US Only)
Inventors: GAO, Yunfeng; (CN).
LI, Jiaying; (CN).
BAO, Ruiwu; (CN).
SUN, Bo; (CN).
ZHOU, Chaoming; (CN)
Agent: SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE; 4th F1. West(P.O. BOX NO.5) Old Special Zone Newspaper Building No.1014, Shennan Road C., Futian Shenzhen, Guangdong 518028 (CN)
Priority Data:
200810066904.9 28.04.2008 CN
(ZH) 光学镜头
Abstract: front page image
(EN)An optical lens comprises a lens group and a diaphragm (1) located in front of the lens group. The lens group comprises a first lens (L1), a second lens (L2), and a third lens (L3) in order. The first lens is a concave-flat negative lens, the second lens is a meniscus positive lens with a concave surface facing to the diaphragm, and the third lens is a biconvex positive lens. The ratios of the focal lengths f1, f2 and f3 of the first, the second and the third lenses to the focal length f of the whole optical system, respectively, satisfy the following relationships:-0.6
(FR)L'invention concerne un ensemble lentille optique comprenant un groupe de lentilles et un diaphragme (1) situé devant ledit groupe de lentilles. Le groupe de lentilles comprend une première lentille (L1), une deuxième lentille (L2), et une troisième lentille (L3), dans cet ordre. La première lentille (L1) est une lentille négative concave-plate, la deuxième lentille (L2) est une lentille positive ménisque présentant une surface concave opposée au diaphragme, et la troisième lentille (L3) est une lentille positive biconvexe. Les rapports entre les distances focales f1, f2 et f3 de la première lentille (L1), de la deuxième lentille (L2), et de la troisième lentille (L3), et la distance focale du système optique complet, satisfont respectivement les relations suivantes:-0,6
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, JP, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)