公开(公告)号：US20230250382A1

公开(公告)日：2023-08-10

申请号：US18163341

申请日：2023-02-02

Applicant: AGC Inc.

Inventor： Kensuke ONO ,  Kiyohisa NAKAMURA ,  Mamoru ISOBE ,  Kohei HORIUCHI

IPC: C12M1/12 ,  C12M1/32

CPC classification number: C12M25/00 ,  C12M23/12

Abstract: To provide a substrate of a cell culture container in which cells are appropriately maintained in dents and the cells in the dents are appropriately observed, and a cell culture container.
The substrate of a cell culture container of the present invention has a bottom face and a surface having a dent-formed region having a plurality of dents formed, wherein the average depth of the plurality of dents is 200 µm or more, the formula θ1

公开(公告)号：US20210356755A1

公开(公告)日：2021-11-18

申请号：US17443997

申请日：2021-07-29

Applicant: AGC Inc.

Inventor： Toshiya YONEHARA ,  Ryota MURAKAMI ,  Koichi TASHIMA ,  Kensuke ONO

IPC: G02B27/42 ,  G03B21/20

Abstract: A diffractive optical element includes a unit structure periodically arranged in a first direction and configured to diffract incident light in the first direction. The diffractive optical element has a phase pattern designed such that an angular separation between an outermost diffracted light beam and a second-outermost diffracted light beam along the first direction is smaller than the divergence angle of the incident light.

公开(公告)号：US20200264443A1

公开(公告)日：2020-08-20

申请号：US16845250

申请日：2020-04-10

Applicant: AGC Inc.

Inventor： Kensuke ONO ,  Ryota MURAKAMI

IPC: G02B27/42 ,  G02B5/18

Abstract: To provide a diffractive optical element which is thin and is capable of emitting light in a wide range while further reducing zeroth order light.The diffractive optical element of the present invention comprises a substrate, a convexo-concave portion formed on one surface of the substrate and having a predetermined diffraction function to incident light, and an antireflection layer formed between the substrate and the convexo-concave portion, wherein the difference in the refractive index in a wavelength band of the incident light between a first medium constituting convex portions of the convexo-concave portion and a second medium constituting concave portions of the convexo-concave portion is at least 0.70, and when the incident light enters from a normal direction of the substrate, an emergent angle range which is an angle range representing spread of a light pattern formed by the diffracted light emerging from the convexo-concave portion, is at least 60°.

公开(公告)号：US20210255374A1

公开(公告)日：2021-08-19

申请号：US17227520

申请日：2021-04-12

Applicant: AGC Inc.

Inventor： Ryota MURAKAMI ,  Kensuke ONO ,  Motoshi NAKAYAMA

IPC: G02B5/18 ,  G01S17/931 ,  G01S7/481 ,  G02B27/44

Abstract: A diffractive optical element includes: a diffraction unit; and a lens unit disposed on a light incident side of the diffraction unit. The lens unit includes: a substrate; and a protrusion and recess portion disposed on a side opposite to a light incident side of the substrate. The protrusion and recess portion includes: a periodic structure of a relief-protrusion portion disposed in a central part, a periodic structure of a stepwise grating disposed in a central part simulating the relief-protrusion portion, or a combination thereof; and a grating disposed in a portion other than the central part. The number of steps of the stepwise grating disposed in the central part is larger than the number of steps of the grating disposed in the portion other than the central part.

公开(公告)号：US20210003911A1

公开(公告)日：2021-01-07

申请号：US17021482

申请日：2020-09-15

Applicant: AGC INC.

Inventor： Yoshiharu OOI (Deceased) ,  Koichi TASHIMA ,  Kensuke ONO ,  Atsushi KOYANAGI

IPC: G03B21/20 ,  G02B3/00 ,  G02B27/30 ,  G02B5/18

Abstract: A homogenizer includes a convex-lens array pair including a first convex-lens array disposed on a light entrance side and a second convex-lens array disposed on a light emission side. The first convex-lens array and the second convex-lens array are disposed so as to face each other such that each of the convex-lens arrays has a lens surface opposed to each other outward or inward. The first convex-lens array includes a plurality of first convex lenses in an array arrangement. The second convex-lens array includes a plurality of second convex lenses in an array arrangement. The first convex lens has an average internal transmission angle for incident light entering a lens-surface center region in the lens cross-section and being in parallel with the symmetry axis being equal to or more than 1.3 times an average internal transmission angle of a spherical convex lens.