Title:
SPECTACLE LENS AND SPECTACLES
Document Type and Number:
WIPO Patent Application WO/2024/034341
Kind Code:
A1
Abstract:
The present invention provides a spectacle lens 1 comprising a lens base material that has an optical surface and an antireflective film that covers the optical surface of the lens base material. The antireflective film has a multilayered structure including lamination of a low-refractive-index layer and a high-refractive-index layer. The antireflective film includes a reactive layer, the reactivity of which to irradiation with an ultrashort pulse laser is relatively higher than that of other layers included in the antireflective film. A marking 2M that makes it possible to see a removal site with visible light, via exposure of the high-refractive-index layer underneath the reactive layer or a remaining portion of the reactive layer, is provided in a rounded shape to the removal site, which is formed by at least partially removing a prescribed layer including the outermost layer of the multilayered structure. The present invention also provides technology related to the spectacle lens 1.
Inventors:
OOKUBO SHIGEKI (JP)
Application Number:
PCT/JP2023/026444
Publication Date:
February 15, 2024
Filing Date:
July 19, 2023
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
OOKUBO SHIGEKI (JP)
OOKUBO SHIGEKI (JP)
International Classes:
G02C7/02; G02B1/115; G02B1/14; G02C11/02
Foreign References:
| JP2022007102A | 2022-01-13 | |||
| JP2014219618A | 2014-11-20 | |||
| JP2016007612A | 2016-01-18 | |||
| JP2000288891A | 2000-10-17 | |||
| JP2007041569A | 2007-02-15 |
Attorney, Agent or Firm:
FUKUOKA Masahiro et al. (JP)
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