公开(公告)号：US20240316234A1

公开(公告)日：2024-09-26

申请号：US18575261

申请日：2022-06-24

Applicant: Nichia Corporation

Inventor： Masahiro IMAI ,  Masaaki MIYAZAWA ,  Hiroki SANO ,  Katsuyuki ONOZUKA

IPC: A61L2/10 ,  A61L2/26 ,  A61L9/20 ,  C02F1/32

CPC classification number: A61L2/10 ,  A61L2/26 ,  A61L9/20 ,  C02F1/325 ,  A61L2202/11 ,  A61L2209/12 ,  C02F2201/3222 ,  C02F2201/3226 ,  C02F2201/3227 ,  C02F2303/04

Abstract: An ultraviolet light fluid treatment device that can enhance treatment effects is provided. The ultraviolet light fluid treatment device includes an inlet and an outlet of fluid; a flow channel connecting the inlet and the outlet and including a plurality of branch flow channels branching from the inlet, and a merged flow channel connected to a downstream side of each of the branch flow channels; a first light source configured to emit ultraviolet light to the merged flow channel; and a plurality of second light sources configured to emit the ultraviolet light to the plurality of respective branch flow channels.

公开(公告)号：US20180356580A1

公开(公告)日：2018-12-13

申请号：US15996927

申请日：2018-06-04

Applicant: NICHIA CORPORATION

Inventor： Katsuyuki ONOZUKA

IPC: F21V8/00

CPC classification number: G02B6/001 ,  G02B6/0003 ,  G02B6/0016 ,  G02B6/004

Abstract: An optical fiber covering structure includes an optical fiber and a covering layer surrounding the optical fiber. The covering layer includes a glass fiber layer formed with an assembly of glass fibers or a ceramic fiber layer formed with an assembly of ceramic fibers. The glass fibers or the ceramic fibers each contains at least one fluorescent material and/or at least one light-diffusing material.

公开(公告)号：US20180106943A1

公开(公告)日：2018-04-19

申请号：US15783945

申请日：2017-10-13

Applicant: NICHIA CORPORATION

Inventor： Katsuyuki ONOZUKA ,  Wataru OGURA ,  Yoshitaka TANAKA

IPC: F21V8/00 ,  G02B6/02 ,  G02B6/42 ,  F21K9/61

CPC classification number: G02B6/0006 ,  F21K9/61 ,  F21V2200/10 ,  F21Y2101/00 ,  G02B6/001 ,  G02B6/02319 ,  G02B6/02342 ,  G02B6/4249 ,  G02B6/4298

Abstract: An illumination device includes: an optical fiber, the optical fiber allowing light emitted from a light source to be introduced at a first end portion thereof and to be guided through the optical fiber while emitting a portion of the light through a side surface of the optical fiber; a light-transmissive tube, the light-transmissive tube covering the side surface of the optical fiber such that a gap is located between the tube and the side surface of the optical fiber; and a light-shielding cap covering a second end portion of the tube at a side opposite the light source such that a space is located between a bottom portion of the cap and the second end portion of the tube. A second end portion of the optical fiber projects past the second end portion of the tube and is located at an inner side of the cap.

公开(公告)号：US20180095214A1

公开(公告)日：2018-04-05

申请号：US15720961

申请日：2017-09-29

Applicant: NICHIA CORPORATION

Inventor： Katsuyuki ONOZUKA ,  Yoshitaka TANAKA

IPC: F21V8/00 ,  F21K9/20 ,  F21K9/64 ,  G02B6/26

Abstract: Alighting device includes an optical fiber having a first end portion from which a light emitted by a light source is introduced, and a second end portion, the optical fiber allowing the light to pass therethrough while radiating from a side surface of the optical fiber to an outside; a tube having light-transmissivity and covering the side surface of the optical fiber, such that a gap is located between the side surface of the optical fiber and the tube; a light-shielding cylindrical body covering the second end portion of the optical fiber, such that a space is located between the second end portion of the optical fiber and the cylindrical body, at least a portion of the light-shielding cylindrical body being disposed in the tube; and a light conductive part on a side surface of the cylindrical body, the light conductive part allowing light radiated from the second end portion of the optical fiber to be conducted to a portion of the tube at an outside of the cylindrical body in a diametrical direction of the cylindrical body.