SG11201804585RA - Method and apparatus for determining the presence of an electrical charge on the surface of a lens mold - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau res., 00) (43) International Publication Date .... ..sr ,„„..) 15 June 2017(15.06.2017) WIPO I PCT ID Hit (10) 111111111111111111Ill WO International IIIII II 2017/098358 III 11111101 Publication IIIII I H IIII Number Al RIO IIII IIIIIIII (51) International Patent Classification: MG, GO1R 1/07 (2006.01) G01R 15/24 (2006.01) OM, SC, SD, (21) International Application Number: TN, PCT/IB2016/056872 ZW. (22) International Filing Date: (84) Designated 15 November 2016 (15.11.2016) kind (25) Filing Language: English GM, TZ, UG, (26) Publication Language: English TJ, TM), (30) Priority Data: DK, EE, 62/266,071 11 December 2015 (11.12.2015) US LV, SM, (71) Applicant: NOVARTIS AG [CH/CH]; Lichtstrasse 35, GW, KM, ML, MR, NE, SN, TD, TG). 4056 Basel (CH). Declarations MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, States (unless otherwise indicated, for every of regional protection available): ARIPO (BW, GH, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, European (AL, AT, BE, BG, CH, CY, CZ, DE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, under Rule 4.17: (72) Inventor: OCHROMBEL, Rene; c/o CIBA Vision — as to GmbH, Postfach 4, 63868 Grosswallstadt (DE). patent (81) Designated States (unless otherwise indicated, for every as to kind of national protection available): AE, AG, AL, AM, earlier application (Rule 4.17(iii)) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, applicant's entitlement to apply for and be granted a (Rule 4.170) the applicant's entitlement to claim the priority of the BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, Published: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, — with international search report (Art 21(3)) 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, (54) Title: METHOD AND APPARATUS FOR DETERMINING THE PRESENCE OF AN ELECTRICAL CHARGE ON THE SURFACE OF A LENS MOLD 23 11 1 35 36 37 4 2 33 2 43 44 1 `/ ) 441 31 21 32 222 22 1 i 411 1 21 1_______Y--1 /7 95 o 7 . - 1 4 2 61 GC 'N7 -- - - C.- ' - -7S --•:> / - <: ' ' in ,-;;' Fig. 1 ,--.-- C:: , IN (57) : A method for determining the presence of an electrical charge on a surface of an ophthalmic lens mold (1, 10), the Il c:::, method comprising the steps of - exposing a sensor crystal (22) of a sensor element (2) to a surface of an ophthalmic lens mold (1) N on which an electrical charge generating an electrical field may be present, - converting a light beam (31) emitted from a laser light ea ) source (3) into a linearly polarized measurement light beam (34) by passing the light beam (31) through the sensor element (2), - ,71 . ° processing the linearly polarized measurement light beam (34) exiting the sensor element (2) in a measurement unit (4), wherein the sensor crystal is selected from a non-centrosymmetrical crystallographic point group 43m.