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.

公开(公告)号：US20180216811A1

公开(公告)日：2018-08-02

申请号：US15926613

申请日：2018-03-20

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO,. LTD.

Inventor： Masaharu FUKAKUSA ,  Hideo YAMAGUCHI ,  Hirotaka UENO ,  Kazuhiko YAMANAKA

IPC: F21V29/503 ,  F21V17/12 ,  F21V29/507 ,  F21V29/70 ,  H01S5/00 ,  F21S2/00

Abstract: A light source device includes: a holder that has a first surface and a second surface located higher than the first surface, and is an integral structure; a semiconductor light-emitting device on the first surface; an optical element unit that is disposed above the semiconductor light-emitting device, and has a reflective surface that inclines with respect to the first surface and reflects emitted light from the semiconductor light-emitting device; and a phosphor optical element that is disposed on the second surface and irradiated with reflected light from the optical element unit.