公开(公告)号：US20200249449A1

公开(公告)日：2020-08-06

申请号：US16776958

申请日：2020-01-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Manabu OKUNO ,  Yohei KATSUMATA

IPC: G02B13/16 ,  G02B26/00 ,  G02B27/30 ,  G03B21/28 ,  G03B21/20 ,  G03B21/00 ,  H01S5/022

Abstract: A light source device 20 includes light source units 200a to 200d, lenses 203a, 203b, and 205, and mirrors 204a and 204b. Light source units 200a, 200b and/or light source units 200c, 200d are placed such that the light from units 200a to 200d either enters lens 203a at a position deviated from the optical axis of lens 203a or enters lens 203b at a position deviated from the optical axis of lens 203b.

公开(公告)号：US20170269463A1

公开(公告)日：2017-09-21

申请号：US15454072

申请日：2017-03-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei KATSUMATA ,  Masato TANAKA

IPC: G03B21/20 ,  G03B21/16 ,  G02B7/00 ,  G02B26/00

CPC classification number: G03B21/204 ,  G02B7/008 ,  G02B26/008 ,  G03B21/008 ,  G03B21/16 ,  G03B21/2066 ,  G03B21/208

Abstract: A phosphor wheel device includes a phosphor and a substrate which has a disc shape and on which the phosphor is provided, and the phosphor is provided in at least a portion of a circumference of a circle on the substrate. The circle is centered on the center of a rotational shaft of the substrate. The substrate includes a first opening and a plurality of second openings, and the plurality of second openings extend radially with respect to the center of the rotational shaft.