METHOD FOR MANUFACTURING OPTICAL MEMBER, OPTICAL MEMBER, AND EYEGLASSES

WIPO Patent Application WO/2023/119773

A1

Provided are a method for manufacturing an optical member and technologies pertaining thereto, the method involving performing desired laser processing by: irradiating, with an ultrashort pulse laser, an anti-reflection film which is formed so as to cover an optical surface of an optical base material, and has a multilayer structure including a laminate of a low-refraction index layer and a high-refraction index layer; and partially removing a predetermined layer including the outermost layer of the multilayer structure, wherein the pulse width of the ultrashort pulse laser is equal to or greater than 10 femtoseconds and less than 100 picoseconds, the anti-reflection film includes a reaction layer which has relatively higher reactivity with respect to the irradiation of the ultrashort pulse layer than other layers included in the multilayer structure, and the reaction layer is at least partially removed by the irradiation, and thus, visible laser processing with visible light can be performed.

OOKUBO SHIGEKI (JP)

PCT/JP2022/035740

June 29, 2023

September 26, 2022

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HOYA LENS THAILAND LTD (TH)
OOKUBO SHIGEKI (JP)

G02C7/00; B23K26/00; G02B1/115

WO2005001552A1

2005-01-06

JP2016007612A	2016-01-18
JP2021182165A	2021-11-25
JP2021012224A	2021-02-04
JP2015232614A	2015-12-24
JP2019070809A	2019-05-09
JP2001293818A	2001-10-23
JPH04116502A	1992-04-17
JP3081395B2	2000-08-28
JP2017516155A	2017-06-15
JP2016187911A	2016-11-04

FUKUOKA Masahiro et al. (JP)

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