Title:
ELECTROCHROMIC ELEMENT, EYEGLASS LENS, EYEGLASSES, AND MOLD
Document Type and Number:
WIPO Patent Application WO/2023/219009
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electrochromic element, an eyeglass lens, and the like in which a difference between reflection strengths is adjusted to control waviness. An electrochromic element (10) according to the present invention is obtained by laminating a lens substrate (1) and an electrochromic film (2), the electrochromic element being characterized in that: the absolute value of a difference between reflection strengths in 30% or more of adjacent local regions, among local regions obtained by dividing the electrochromic element into 5-mm squares within a range of a 40-mm square from the center of the surface of the electrochromic element, is 0.05-0.5 D inclusive; the surface of the electrochromic film is wavy; and the highest waviness (Wz) in 30% or more of the regions among the local regions obtained by dividing the electrochromic element into 5-mm squares within a range of a 40-mm square from the center of the surface of the electrochromic element is 6-30 μm inclusive.
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Inventors:
KAWAKAMI HIRONORI (JP)
MIYAZAKI SHIGEKI (JP)
KAGA TADASHI (JP)
MIYAZAKI SHIGEKI (JP)
KAGA TADASHI (JP)
Application Number:
PCT/JP2023/016831
Publication Date:
November 16, 2023
Filing Date:
April 28, 2023
Export Citation:
Assignee:
HOYA LENS THAILAND LTD (TH)
KAWAKAMI HIRONORI (JP)
KAWAKAMI HIRONORI (JP)
International Classes:
G02F1/15; G02C7/10; G02F1/153; G03H1/02
Foreign References:
| JP2022025243A | 2022-02-10 | |||
| JPH07168209A | 1995-07-04 |
Attorney, Agent or Firm:
AOKI Hiroyoshi et al. (JP)
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