公开(公告)号：US20190120462A1

公开(公告)日：2019-04-25

申请号：US16217380

申请日：2018-12-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kimihiro MURAKAMI ,  Toshihiro KOGA ,  Kazuyuki MATSUMURA

IPC: F21V9/35 ,  F21V5/04 ,  F21V7/04 ,  F21V13/14 ,  F21V14/04

Abstract: A light emission device includes a plurality of light sources, a light deflector that deflects excitation light beams emitted by the plurality of light sources, and a wavelength converter that receives and converts the excitation light beams deflected by the light deflector to wavelength-converted light of a different wavelength, and emits the wavelength-converted light. The light deflector includes one movable mirror on which the excitation light beams are incident along different optical axes. The excitation light beams have equally long optical path lengths from the one movable mirror to the wavelength converter.

公开(公告)号：US20180363860A1

公开(公告)日：2018-12-20

申请号：US16112162

申请日：2018-08-24

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hideki KASUGAI ,  Masaharu FUKAKUSA ,  Toshihiro KOGA ,  Yoshihisa NAGASAKI ,  Kazuhiko YAMANAKA

IPC: F21K9/64 ,  F21K9/68 ,  F21S41/67 ,  F21S41/16

Abstract: A light source device includes: a semiconductor light-emitting element; a converging optical system which converges the excitation light emitted from the semiconductor light-emitting element; and a wavelength conversion element to which the excitation light is emitted. The wavelength conversion element includes: a first wavelength conversion region where main light enters; and a second wavelength conversion region which is disposed in the surrounding region of the first wavelength conversion region and where the excitation light excluding the main light enters. The wavelength conversion efficiency in the second wavelength conversion region is lower than the wavelength conversion efficiency in the first wavelength conversion region.

公开(公告)号：US20180342629A1

公开(公告)日：2018-11-29

申请号：US16054688

申请日：2018-08-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuhiko YAMANAKA ,  Hirotaka UENO ,  Masaharu FUKAKUSA ,  Toshihiro KOGA

IPC: H01L31/02 ,  F21V23/04 ,  F21S41/16 ,  F21S45/10 ,  H01L31/0216 ,  H01L31/101 ,  H01L27/144

Abstract: A wavelength conversion element includes a substrate, a wavelength converting member disposed on at least part of a surface of substrate and having a shape of a plate or film, and a light receiver integrated in the substrate and including a p-n junction composed of a p-type semiconductor and an n-type semiconductor.