公开(公告)号：US20210124091A1

公开(公告)日：2021-04-29

申请号：US17251503

申请日：2019-06-07

Applicant: Konica Minolta, Inc.

Inventor： Jinichi KASUYA ,  Kazunari TADA

IPC: G02B1/115

Abstract: Provided is an optical element having particularly excellent salt water resistance and capable of exhibiting a photocatalytic effect. An optical element 100 is obtained by forming a multi-layer coating MC having two or more layers on a glass substrate GL that is an optically-transparent base plate. The multi-layer coating MC has at least one low-refractive-index layer L and at least one high-refractive-index layer H, and a topmost layer 10 farthest from the glass substrate GL is the low-refractive-index layer L. The high-refractive-index layer H adjacent to the topmost layer 10 is a functional layer 20 containing, as a main component, a metal oxide having a photocatalytic function. The topmost layer 10 has a plurality of pores 30 that partially expose a surface of the functional layer 20.

公开(公告)号：US20220128738A1

公开(公告)日：2022-04-28

申请号：US17312929

申请日：2019-11-27

Applicant: Konica Minolta, Inc.

Inventor： Kazunari TADA ,  Jinichi KASUYA ,  Yasushi MIZUMACHI

IPC: G02B1/18 ,  G02B1/115 ,  B01J35/00 ,  B01J35/10 ,  B01J21/06 ,  B01J21/08 ,  B01J37/02

Abstract: A dielectric multilayer film is composed of a plurality of layers on a substrate. The plurality of layers includes at least one low refractive index layer and at least one high refractive index layer. The uppermost layer farthest from the substrate is the low refractive index layer. The high refractive index layer disposed on a substrate side of the uppermost layer is a functional layer containing a metal oxide with a photocatalytic function. The uppermost layer is a hydrophilic layer containing a metal oxide with a hydrophilic function and has pores that partially expose a surface of the functional layer. The average width of the pores is equal to or greater than 5 nm.

公开(公告)号：US20220010422A1

公开(公告)日：2022-01-13

申请号：US17312925

申请日：2019-10-31

Applicant: Konica Minolta, Inc.

Inventor： Jinichi KASUYA ,  Kazunari TADA

IPC: C23C14/10 ,  G02B1/115 ,  C23C14/30 ,  C23C14/08 ,  C23C14/34 ,  C23C14/02

Abstract: A dielectric film is provided on a transparent substrate. The dielectric film has at least one low refractive index layer. An uppermost layer of the dielectric film contains SiO2 and has a film density of 92% or more. The uppermost layer contains an element having an electronegativity smaller than Si.