公开(公告)号：US20170188803A1

公开(公告)日：2017-07-06

申请号：US15465730

申请日：2017-03-22

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke YABE ,  Hiroyuki KAMEE ,  Rihito ISHIKAWA

IPC: A61B1/06 ,  G02B27/14 ,  G02B23/24 ,  G02B26/00

CPC classification number: A61B1/0653 ,  A61B1/06 ,  A61B1/063 ,  A61B1/0669 ,  A61B1/0684 ,  F21K9/64 ,  F21V9/45 ,  F21Y2115/30 ,  G02B23/2469 ,  G02B26/008 ,  G02B27/141

Abstract: A light source device includes: a rotating body configured to be rotated with a rotating shaft as a center; a first wavelength conversion portion arranged on a circumference of a circle of a predetermined radius with the rotating shaft as the center in the rotating body, and configured to be irradiated with light to generate light of a wavelength different from a wavelength of the light; and a second wavelength conversion portion arranged on a circumference of a circle of a radius larger than the predetermined radius with the rotating shaft as the center in the rotating body, configured to be irradiated with light to generate light of a wavelength different from a wavelength of the light, and including a characteristic that conversion efficiency of the wavelength declines due to rise of a temperature more than the first wavelength conversion portion.