Title:
SEMIFINISHED LENS
Document Type and Number:
WIPO Patent Application WO/2022/137772
Kind Code:
A1
Abstract:
Provided is a semifinished lens on which at least three marks for specifying a center position of a frame shape are put. The at least three marks include a pair of marks located on a first straight line passing through the center position, and one mark located on a second straight line orthogonal to the first straight line and passing through the center position when the semifinished lens is viewed from an optical axis direction.
Inventors:
KIKUCHI YOSHIHIRO (JP)
YOKOYAMA SHINICHI (JP)
YOKOYAMA SHINICHI (JP)
Application Number:
PCT/JP2021/039208
Publication Date:
June 30, 2022
Filing Date:
October 25, 2021
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
KIKUCHI YOSHIHIRO (JP)
YOKOYAMA SHINICHI (JP)
KIKUCHI YOSHIHIRO (JP)
YOKOYAMA SHINICHI (JP)
International Classes:
G02C7/00; G02C7/02; G02C7/10; G02C13/00; G02F1/15
Domestic Patent References:
| WO2006003939A1 | 2006-01-12 |
Foreign References:
| JP2000288891A | 2000-10-17 | |||
| JPH07168209A | 1995-07-04 | |||
| JP2007313633A | 2007-12-06 | |||
| JP2018031802A | 2018-03-01 | |||
| JP2017111389A | 2017-06-22 |
Attorney, Agent or Firm:
MATSUOKA Shuhei et al. (JP)
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