公开(公告)号：US20220100068A1

公开(公告)日：2022-03-31

申请号：US17426329

申请日：2019-10-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshihisa NAGASAKI ,  Takashi OHBAYASHI ,  Naoyuki TANI ,  Nobuyasu SUZUKI ,  Takahiro HAMADA ,  Yukihiko SUGIO

IPC: G03B21/20 ,  G03B21/16 ,  C09K11/02 ,  C09K11/77 ,  C09K5/14

Abstract: Provided is a technique for suppressing a temperature rise of a wavelength conversion member. The present disclosure is provided with: phosphor layer containing a phosphor; substrate that supports phosphor layer; and heat sink bonded to substrate, wherein the thermal conductivity of substrate is greater than the thermal conductivity of phosphor layer, and the thermal conductivity of heat sink is greater than the thermal conductivity of substrate, or the thermal conductivity of heat sink is smaller than the thermal conductivity of substrate.

公开(公告)号：US20220057702A1

公开(公告)日：2022-02-24

申请号：US17414401

申请日：2019-10-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro HAMADA ,  Naoyuki TANI ,  Takashi OHBAYASHI ,  Yoshihisa NAGASAKI

IPC: G03B21/20 ,  C09K11/02 ,  C09K11/77

Abstract: A wavelength conversion device includes a matrix containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix and containing resin material. This wavelength conversion device prevents the phosphor from falling.