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公开(公告)号：US20220382044A1
公开(公告)日：2022-12-01
申请号：US17746809
申请日：2022-05-17
发明人： Atsushi Takata
摘要： A polygon mirror includes a resin member, a first surface, a second surface facing the first surface, an inner surface joining the first and second surfaces to surround a through hole extending from the first to the second surface, and includes outer surfaces joining the first and second surfaces. A first segment between the first surface and the outer surfaces is defined as a first reference of a height in a direction from a second segment between the second surface and the outer surfaces to the first segment. The first surface includes a projection that forms the inner surface and projects from the first reference toward a side opposite to the second surface. The second segment is defined as a second reference of the height in the direction. The second surface includes a depressed portion distant from the outer surfaces and depressed from the second reference toward the first surface.
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公开(公告)号：US20210026120A1
公开(公告)日：2021-01-28
申请号：US17035992
申请日：2020-09-29
发明人： Naoto Fuse , Chiaki Inoue , Ichiro Kanazashi , Atsushi Takata , Kazuhiro Kochi , Kouga Okada
摘要： An imaging apparatus includes a first reflection optical system and a second reflection optical system having mutually different optical axes, each of the first and second reflection optical systems includes a plurality of reflecting surfaces, a first imaging portion configured to receive an imaging light reflected by the first reflection optical system, a second imaging portion configured to receive an imaging light reflected by the second reflection optical system, a first member, a second member, and a frame. A part of the plurality of reflecting surfaces of the first reflection optical system are reflecting surfaces provided on the frame. Among the plurality of reflecting surfaces of the first reflection optical system, a final-stage reflecting surface configured to reflect the imaging light toward the first imaging portion is a first reflecting surface formed on a surface of the first member.
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3.发明申请公开(公告)号：US20190322021A1
公开(公告)日：2019-10-24
申请号：US16383937
申请日：2019-04-15
发明人： Fumihiko Yamaya , Hiroki Katayama , Yoshihiko Tanaka , Takatoshi Tanaka , Mitsuhiro Ohta , Atsushi Takata , Naoki Matsushita
摘要： A manufacturing method of a polygonal mirror using a metal mold including a first mold, a second mold, a third mold, and a fourth mold includes a step of forming the molded member by providing the third mold and the fourth mold between the first mold and the second mold in a state in which the third mold and the fourth mold are in contact with each other and then by injecting a resin material into the metal mold, and a step of separating the third mold from the first crossing surface of the molded member in a direction crossing the first crossing surface.
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公开(公告)号：US20190091954A1
公开(公告)日：2019-03-28
申请号：US16127467
申请日：2018-09-11
发明人： Atsushi Takata
摘要： A forming mold for forming a prism by press molding includes a first mold, a second mold, and a third mold. The second mold includes a surface configured to form a base surface of a non-optical surface and is configured to define, together with the first mold, a space in which a material is disposed. The third mold is slidable with respect to the second mold so as to project toward the space with respect to the second mold and is configured to form a recess portion recessed with respect to the base surface.
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公开(公告)号：US11835714B2
公开(公告)日：2023-12-05
申请号：US17746809
申请日：2022-05-17
发明人： Atsushi Takata
CPC分类号： G02B26/12 , G02B26/0816 , G03G15/04 , G03G15/04072
摘要： A polygon mirror includes a resin member, a first surface, a second surface facing the first surface, an inner surface joining the first and second surfaces to surround a through hole extending from the first to the second surface, and includes outer surfaces joining the first and second surfaces. A first segment between the first surface and the outer surfaces is defined as a first reference of a height in a direction from a second segment between the second surface and the outer surfaces to the first segment. The first surface includes a projection that forms the inner surface and projects from the first reference toward a side opposite to the second surface. The second segment is defined as a second reference of the height in the direction. The second surface includes a depressed portion distant from the outer surfaces and depressed from the second reference toward the first surface.
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公开(公告)号：US10974475B2
公开(公告)日：2021-04-13
申请号：US16127467
申请日：2018-09-11
发明人： Atsushi Takata
IPC分类号： B29D11/00 , B29C43/36 , G02B5/04 , G02B1/04 , B29C43/54 , B29C43/52 , G02B23/00 , B29K23/00 , B29L11/00
摘要： A forming mold for forming a prism by press molding includes a first mold, a second mold, and a third mold. The second mold includes a surface configured to form a base surface of a non-optical surface and is configured to define, together with the first mold, a space in which a material is disposed. The third mold is slidable with respect to the second mold so as to project toward the space with respect to the second mold and is configured to form a recess portion recessed with respect to the base surface.
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公开(公告)号：US11366310B2
公开(公告)日：2022-06-21
申请号：US16386648
申请日：2019-04-17
发明人： Naoki Matsushita , Atsushi Takata , Yoshihiko Tanaka , Takatoshi Tanaka , Fumihiko Yamaya , Mitsuhiro Ohta , Hiroki Katayama
摘要： A polygonal mirror includes reflecting surfaces, a molded member including a first surface and a second surface, a contact portion, and gate marks. Each of said first surface and said second surface has a polygonal shape. The contact portion and the gate marks are formed at non-overlapping positions with a line segment connecting a vertex of the polygonal shape with a rotation center. The gate marks and the reflecting surfaces are the same in number. A perpendicular bisector of a line segment connecting centers of the gate marks adjacent to each other with respect to a rotational direction of the polygonal mirror is formed at a position passing through an associated vertex of the polygonal shape and the rotation center.
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公开(公告)号：US11953665B2
公开(公告)日：2024-04-09
申请号：US17035992
申请日：2020-09-29
发明人： Naoto Fuse , Chiaki Inoue , Ichiro Kanazashi , Atsushi Takata , Kazuhiro Kochi , Kouga Okada
CPC分类号： G02B17/0657 , B60R11/04 , G02B7/182 , G03B35/08 , B60R2011/0026
摘要： An imaging apparatus includes a first reflection optical system and a second reflection optical system having mutually different optical axes, each of the first and second reflection optical systems includes a plurality of reflecting surfaces, a first imaging portion configured to receive an imaging light reflected by the first reflection optical system, a second imaging portion configured to receive an imaging light reflected by the second reflection optical system, a first member, a second member, and a frame. A part of the plurality of reflecting surfaces of the first reflection optical system are reflecting surfaces provided on the frame. Among the plurality of reflecting surfaces of the first reflection optical system, a final-stage reflecting surface configured to reflect the imaging light toward the first imaging portion is a first reflecting surface formed on a surface of the first member.
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公开(公告)号：US11383413B2
公开(公告)日：2022-07-12
申请号：US16383937
申请日：2019-04-15
发明人： Fumihiko Yamaya , Hiroki Katayama , Yoshihiko Tanaka , Takatoshi Tanaka , Mitsuhiro Ohta , Atsushi Takata , Naoki Matsushita
摘要： A manufacturing method of a polygonal mirror using a metal mold including a first mold, a second mold, a third mold, and a fourth mold includes a step of forming the molded member by providing the third mold and the fourth mold between the first mold and the second mold in a state in which the third mold and the fourth mold are in contact with each other and then by injecting a resin material into the metal mold, and a step of separating the third mold from the first crossing surface of the molded member in a direction crossing the first crossing surface.
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公开(公告)号：US20190322023A1
公开(公告)日：2019-10-24
申请号：US16386648
申请日：2019-04-17
发明人： Naoki Matsushita , Atsushi Takata , Yoshihiko Tanaka , Takatoshi Tanaka , Fumihiko Yamaya , Mitsuhiro Ohta , Hiroki Katayama
摘要： A polygonal mirror includes reflecting surfaces, a molded member including a first surface and a second surface, a contact portion, and gate marks. Each of said first surface and said second surface has a polygonal shape. The contact portion and the gate marks are formed at non-overlapping positions with a line segment connecting a vertex of the polygonal shape with a rotation center. The gate marks and the reflecting surfaces are the same in number. A perpendicular bisector of a line segment connecting centers of the gate marks adjacent to each other with respect to a rotational direction of the polygonal mirror is formed at a position passing through an associated vertex of the polygonal shape and the rotation center.
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