公开(公告)号：US20220099863A1

公开(公告)日：2022-03-31

申请号：US17422566

申请日：2020-01-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toru HIRANO ,  Tsuyoshi MORIZUMI ,  Yosuke MIZOKAMI ,  Toshihiko SATO

IPC: G02B1/11

Abstract: A color conversion element includes: a substrate; a fluorescent part which is arranged above the substrate, receives laser light from an outside, and emits light of a color different from a color of the laser light; a first flattening layer which is superposed on a first main surface of the fluorescent part opposite to the substrate; a second flattening layer which is superposed on a second main surface of the fluorescent part facing the substrate; a reflective layer which is superposed on a main surface of the second flattening layer facing the substrate and formed of a dielectric multilayer film; and a joint part which lies between the reflective layer and the substrate and joins together the reflective layer and the substrate.