公开(公告)号：US20190190118A1

公开(公告)日：2019-06-20

申请号：US16221089

申请日：2018-12-14

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hajime OZAKI ,  Tatsumi SETOMOTO ,  Satoru YAMAUCHI ,  Hironori AKIYAMA ,  Kohji HIRAMATSU

IPC: H01Q1/22 ,  F21V23/00 ,  F21K9/23 ,  H05B37/02

Abstract: An illumination device is provided. The illumination device includes a substrate including a light-emitter. An instrument main body includes a substrate arrangement surface, with the substrate being on the substrate arrangement surface. A cover is attached to the instrument main body, covers the substrate, and is transparent. An antenna is on the cover and configured to receive a signal from an outside of the illumination device. A driver is on the instrument main body and configured to supply power to the light-emitter. A controller is configured to control the power supplied from the driver to the light-emitter based on the signal received by the antenna. The cover includes a diffusion factor from 40% to 90%.

公开(公告)号：US20230080967A1

公开(公告)日：2023-03-16

申请号：US17802567

申请日：2021-02-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryosuke SHIGITANI ,  Kazuyuki YAMAE ,  Hironori AKIYAMA ,  Hideki WADA ,  Kotone MORI

IPC: F21V7/00

Abstract: A light-emitting device includes: a light guide that includes (i) a light-transmissive member that is light-transmissive at least in a visible light region and (ii) a light control layer that is disposed on at least a part of a surface of the light-transmissive member; and a light source that emits light toward at least one end surface of the light-transmissive member. The light control layer has reflected-wavelength selectivity that makes a wavelength of reflected light dependent on an incident angle of incident light.

公开(公告)号：US20200271848A1

公开(公告)日：2020-08-27

申请号：US16793245

申请日：2020-02-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Daigo YAMASHINA ,  Hironori AKIYAMA ,  Kazuyuki YAMAE

IPC: F21V8/00 ,  G02B1/04 ,  C08L53/02

Abstract: A lighting apparatus includes: a light source module; a light guide that guides light emitted from the light source module; and a light exit structure provided in the light guide, for causing the light to exit the light guide. The light guide includes: a base material that is flexible and light-transmissive; and a visible-light absorber uniformly dispersed in the base material. The visible-light absorber has a maximum absorption wavelength of at least 500 nm and at most 750 nm.