(19)
(11) EP 3 454 721 A1

(12)

(43) Date of publication:
20.03.2019 Bulletin 2019/12

(21) Application number: 17796581.1

(22) Date of filing: 03.05.2017
(51) International Patent Classification (IPC): 
A61B 3/103(2006.01)
A61B 3/14(2006.01)
 G02C 7/02(2006.01)
(86) International application number:
PCT/US2017/030784
(87) International publication number:
WO 2017/196603 (16.11.2017 Gazette 2017/46)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 11.05.2016 US 201615151491
12.05.2016 CN 201610316763

(71) Applicants:
  • Perfect Vision Technology (HK) Ltd.
    Hong Kong (HK)
  • Liang, Junzhong
    Fremont, CA 94539 (US)

(72) Inventor:
  • LIANG, Junzhong
    Fremont California 94539 (US)

(74) Representative: Haseltine Lake LLP 
Redcliff Quay 120 Redcliff Street
Bristol BS1 6HU
Bristol BS1 6HU (GB)

   


(54) METHODS AND SYSTEMS FOR DETERMINING REFRACTIVE CORRECTONS OF HUMAN EYES FOR EYEGLASSES