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Title:
METHOD FOR EVALUATING SPECTACLE LENS, AND SPECTACLE LENS
Document Type and Number:
WIPO Patent Application WO/2020/137534
Kind Code:
A1
Abstract:
Provided are a method for evaluating a spectacle lens having a plurality of projections on at least one of the object-side surface and the eye-side surface thereof, and a technique related to the same, the method for evaluating a spectacle lens comprising evaluating the spectacle lens on the basis of the number of light rays at a plurality of focal positions A at which light rays passing through each of a plurality of projections in a predetermined evaluation region of the spectacle lens each converge when ray tracing is performed with respect to predetermined evaluation region.

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Inventors:
QI HUA (JP)
UCHIDANI TAKAHIRO (JP)
Application Number:
PCT/JP2019/048399
Publication Date:
July 02, 2020
Filing Date:
December 11, 2019
Export Citation:
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Assignee:
HOYA LENS THAILAND LTD (TH)
QI HUA (JP)
UCHIDANI TAKAHIRO (JP)
International Classes:
G02C7/02; G02C7/06
Domestic Patent References:
WO2019189847A12019-10-03
Foreign References:
US20170131567A12017-05-11
CN104678572A2015-06-03
US20160306192A12016-10-20
JP2000107129A2000-04-18
JP2017010031A2017-01-12
US20170131567A12017-05-11
Other References:
See also references of EP 3904950A4
Attorney, Agent or Firm:
ANIYA Setuo et al. (JP)
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