Patent SG-11201903451T-A (SG)
Title: Intraocular lens having an extended depth of focus
Inventor: TIWARI NIVEDAN
IPC: A61F2/16
Filed: 2017-11-15
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 1111111111111111111111111111111111111111111111111111111111111111111111# Organization (10) International Publication Number International Bureau (43) International Publication Date ......0\" WO 2018/093873 Al 24 May 2018 (24.05.2018) W I PO I PC T — (51) (21) (22) (25) Filing Language: (26) (30) (71) (72) Inventors: TIWARI, Nivedan; 10 Fallbrook, Irvine, CA International Patent Classification: (74) Agent: POWERS, Jeffrey, B. et al.; Bond, Schoeneck & A61F 2/16 (2006.01) King PLLC, 350 Linden Oaks, Third Floor, Rochester, NY International Application Number: 14624 (US). PCT/US2017/061765 (81) Designated States (unless otherwise indicated, for every International Filing Date: kind of national protection available): AE, AG, AL, AM, 15 November 2017 (15.11.2017) 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, English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, Publication Language: English 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, Priority Data: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 15/353,381 16 November 2016 (16.11.2016) US OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 15/727,019 06 October 2017 (06.10.2017) US 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. Applicant: TATVUM LLC [US/US]; 10 Fallbrook, Ivrine, CA 92604 (US). (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 92604 (US). VANKATESWARAN, Krishnakumar; 37 UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Cottage Lane, Aliso Viejo, CA 92656 (US). TM), European (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, — = = Title: INTRAOCULAR E E 0.0025 0 Er - 1 0.002 i Cf. Ili I— (4 0.0015 Ili ....i 13 0 IX ci 0.001 5 0.0005 of -2.5 : An intraocular refractive base power, at least one of the anterior surface and the posterior surface having disposed thereon a profile (150) having heights determined by combining three constituent diffractive profiles. The diffractive profiles correspond and p3, the powers being different than one another and each power being a positive power less than about 1D of the diffractive profiles light. The combined profile defined by the function: z = max (diffractive profile (pi), diffractive profile (p2), diffractive where p3 > p2 > pi. LENS HAVING AN EXTENDED DEPTH OF FOCUS CROSS-SECTION OF THE DIFFRACTIVE PROFILE 5 (104), providing comprising to powers pi, or about 1.25D. 2*pi for 546 profile — (54) — = ---150 ,---- / _ = = —= = = = = _ t I 1 1 1 _2 -1,5 -1 -0.5 0 0,5 1 1.5 2 2 RADIAL DISTANCE FROM LENS CENTRAL AXIS (mm) Fig. 2 lens, comprising an optic (100) having an anterior surface (102) and a posterior surface having step heights causing a phase delay, relative to aqueous fluid, of 0.6 to 1.2 times = ,-1 .4 IN en (57) pc a M steps C:N p2 0 ---- Each GC , 1 nm © (p3)), N C [Continued on next page] WO 2018/093873 Al MIDEDIMOMOIDEIREIDIONIONOMMOHIIHMEHOIS TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply patent (Rule 4.17(11)) for and be granted a Published: — with international search report (Art. 21(3))