公开(公告)号：US20200018872A1

公开(公告)日：2020-01-16

申请号：US16504505

申请日：2019-07-08

Applicant: AGC Inc.

Inventor： Kensuke FUJII ,  Michinori SUEHARA ,  Kazunari TOHYAMA

IPC: G02B1/115 ,  G02B1/18 ,  C23C14/18 ,  C23C14/08

Abstract: A glass laminate includes a glass substrate including a first main surface and a second main surface, an antireflection layer on at least one of the first main surface and the second main surface, and an antifouling layer on the antireflection layer. The antireflection layer includes at least one low refractive index layer and at least one high refractive index layer, and the low refractive index layer and the high refractive index layer being alternately laminated. The antireflection layer includes an outermost layer farthest from the glass substrate and the outermost layer is the low refractive index layer including SiO2 as a main component. A distribution of fluorine concentration in a thickness direction of the outermost layer, measured by secondary ion mass spectrometry, has a peak.

公开(公告)号：US20200002231A1

公开(公告)日：2020-01-02

申请号：US16567055

申请日：2019-09-11

Applicant: AGC Inc.

Inventor： Shuhei OGAWA ,  Naomichi MIYAKAWA ,  Yasuo SHINOZAKI ,  Haruhiko YOSHINO ,  Kazunari TOHYAMA ,  Kazuto OHKOSHI

IPC: C04B35/117 ,  C04B38/00 ,  C04B38/06

Abstract: The present invention relates to a light-transmitting ceramic sintered body which contains air voids having pore diameters of 1 μm or more but less than 5 μm at a density within the range of from 10 voids/mm3 to 4,000 voids/mm3 (inclusive), while having a closed porosity of from 0.01% by volume to 1.05% by volume (inclusive). With respect to this light-transmitting ceramic sintered body, a test piece having a thickness of 1.90 mm has an average transmittance of 70% or more in the visible spectrum wavelength range of 500-900 nm, and the test piece having a thickness of 1.90 mm has a sharpness of 60% or more at a comb width of 0.5 mm.