公开(公告)号：US11480317B2

公开(公告)日：2022-10-25

申请号：US17409251

申请日：2021-08-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiaki Takenaka ,  Shintaro Hayashi ,  Shogo Motegi ,  Yudai Shibata ,  Fumiya Yagi ,  Takeshi Abe

IPC: F21V9/32 ,  F21V9/40 ,  F21V7/04 ,  F21V5/04

Abstract: A light source device includes a plurality of light sources; a condensing optical member; a fluorescent unit that converts at least a portion of the light from the light sources and condensed by the optical member into light including converted light and light from the light sources; and a sensor that detects an anomaly in the fluorescent unit, such sensor disposed within a circular area circumscribed by the light sources.