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公开(公告)号：US10420180B2
公开(公告)日：2019-09-17
申请号：US15922457
申请日：2018-03-15
Inventor： Shumpei Fujii
IPC: H05B33/08 , F21V8/00 , F21V33/00 , H05B37/02 , F21V5/00 , F21V9/02 , F21V11/06 , F21V13/02 , G02B6/00 , F21Y105/16
Abstract: A lighting apparatus includes: a light source; a light-transmissive diffuser panel disposed to receive light emitted from the light source; a frame having an opening through which light passes; and a light blocker that blocks the light emitted from the light source. The diffuser panel is fixed to the frame to cover the opening. The light blocker blocks a portion of the light passing through the opening.
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公开(公告)号：US12072513B2
公开(公告)日：2024-08-27
申请号：US17426160
申请日：2020-01-17
Inventor： Ryosuke Shigitani , Shumpei Fujii
CPC classification number: G02B5/0252 , F21S2/005 , F21V7/28
Abstract: A lighting device which outputs output light includes: a light source; and an optical member which includes at least one of reflection wavelength selectivity or transmission wavelength selectivity depending on an incidence angle θ of incident light from the light source, wherein the incident light is incident on the optical member at a plurality of different incidence angles θ, the incident light is converted into outgoing light through the optical member, the outgoing light includes reflected light reflected by the optical member and transmitted light transmitted through the optical member, the output light is light based on the outgoing light, and chromaticity of the output light continuously changes on a surface irradiated by the output light.
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公开(公告)号：US10440792B2
公开(公告)日：2019-10-08
申请号：US15934606
申请日：2018-03-23
Inventor： Hironori Takeshita , Kentaro Yamauchi , Satoru Yamauchi , Shumpei Fujii , Satoshi Hyodo
IPC: F21V3/02 , F21S8/04 , H05B33/08 , H05B37/02 , G02B27/09 , G03B21/20 , F21V8/00 , G03B21/14 , F21V15/01 , F21V23/00 , F21S8/02 , F21V3/04 , F21V9/02 , F21V21/30 , F21Y115/10 , F21W121/00 , F21Y113/17 , F21Y105/16 , F21Y113/20
Abstract: An illumination apparatus includes: a case having an opening portion; a light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, and diffuses and transmits light emitted from the plurality of light-emitting elements; and a controller that controls light emission from the light source. The controller: controls light emission from the plurality of light-emitting elements to project an image on the light diffuser, the image changing with time; and when changing the light emission from the plurality of light-emitting elements changing the image, controls the light emission from the light source to keep a change in at least one of (i) a light amount, (ii) a color temperature, and (iii) a spectral distribution of light emitted from the illumination apparatus within a predetermined range.
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Patent Agency Ranking
公开(公告)号：US11242964B2
公开(公告)日：2022-02-08
申请号：US15934397
申请日：2018-03-23
Inventor： Hironori Takeshita , Kentaro Yamauchi , Satoru Yamauchi , Shumpei Fujii , Satoshi Hyodo
IPC: F21S8/02 , G02B27/09 , G03B21/20 , F21V21/30 , H05B45/20 , H05B47/16 , H05B45/10 , F21V8/00 , G03B21/14 , F21V3/02 , F21V15/01 , F21V23/00 , F21V3/04 , F21V9/02 , F21Y113/20 , F21Y105/16 , H05B45/12 , F21Y115/10 , F21W121/00 , F21Y113/17
Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a specular reflector that is disposed between the light-emitting module and the light diffuser. The light-emitting module emits light toward the light diffuser, and the specular reflector reflects light from the light diffuser.
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公开(公告)号：US10677421B2
公开(公告)日：2020-06-09
申请号：US15934644
申请日：2018-03-23
Inventor： Hironori Takeshita , Kentaro Yamauchi , Satoru Yamauchi , Shumpei Fujii , Satoshi Hyodo
IPC: F21V9/02 , G02B27/09 , G03B21/20 , F21V21/30 , H05B45/20 , H05B47/16 , F21V8/00 , G03B21/14 , F21V3/02 , F21V15/01 , F21V23/00 , F21S8/02 , F21V3/04 , F21Y113/20 , F21Y105/16 , F21Y115/10 , F21W121/00 , F21Y113/17
Abstract: An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a light reflector that includes a wall having light-reflecting properties and surrounding the plurality of light-emitting elements. Among the plurality of light-emitting elements, every two adjacent light-emitting elements are disposed on the board at a first interval. Among the plurality of light-emitting elements, a light-emitting element closest to the wall is disposed on the board with a second interval to the wall, the second interval being larger than ¼ of the first interval and smaller than the first interval.
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公开(公告)号：US11892665B2
公开(公告)日：2024-02-06
申请号：US17423877
申请日：2020-01-15
Inventor： Ryosuke Shigitani , Shumpei Fujii
Abstract: A colloidal crystal structure includes a colloidal crystal layer including a plurality of colloidal particles and a binder disposed between the plurality of colloidal particles to fix the colloidal particles, and a refractive index control material that is provided on one surface of the colloidal structural layer, is transparent, and has a refractive index difference of less than 10% with respect to the binder. A light-emitting device includes an optical filter including the colloidal crystal structure, and a light source, and a part of primary light emitted by the light source passes through the optical filter. A lighting system includes the light-emitting device.
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公开(公告)号：US10718489B2
公开(公告)日：2020-07-21
申请号：US15934238
申请日：2018-03-23
Inventor： Hironori Takeshita , Kentaro Yamauchi , Satoru Yamauchi , Shumpei Fujii , Satoshi Hyodo
IPC: F21S8/02 , F21V9/02 , G02B27/09 , G03B21/20 , F21V21/30 , H05B45/20 , H05B47/16 , H05B45/00 , H05B45/10 , F21V8/00 , G03B21/14 , F21V3/02 , F21V15/01 , F21V23/00 , F21V3/04 , F21Y113/20 , F21Y105/16 , F21Y115/10 , F21W121/00 , F21Y113/17
Abstract: An illumination system includes: a first luminaire that emits first illumination light having a color simulating a sky; a second luminaire that is disposed in a same space as the first luminaire, the second luminaire projecting, on an object, second illumination light simulating sunlight to create a sunny portion on the object; and a controller that causes the first luminaire to emit the first illumination light according to an environment reproduction condition.
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公开(公告)号：US10591136B2
公开(公告)日：2020-03-17
申请号：US15934059
申请日：2018-03-23
Inventor： Hironori Takeshita , Kentaro Yamauchi , Satoru Yamauchi , Shumpei Fujii , Satoshi Hyodo
IPC: F21V9/02 , H05B33/08 , G02B27/09 , G03B21/20 , F21V21/30 , F21V8/00 , G03B21/14 , F21V3/02 , F21V15/01 , F21V23/00 , H05B37/02 , F21S8/02 , F21V3/04 , F21Y113/20 , F21Y105/16 , F21Y115/10 , F21W121/00 , F21Y113/17
Abstract: An illumination apparatus includes: a case having an opening portion; a first light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, diffuses and transmits light emitted from the first light source, and from which the diffused light and the transmitted light exit; a light emission component disposed outside a light exit region of the light diffuser on a light exit surface side of the light diffuser; and a second light source that emits light to the light emission component to cause the light emission component to radiate light.
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