公开(公告)号：US20240272534A1

公开(公告)日：2024-08-15

申请号：US18566840

申请日：2022-05-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yosuke HONDA ,  Yoshiyuki TAKAHIRA

IPC: G03B21/20 ,  G02B26/00

CPC classification number: G03B21/204 ,  G02B26/008

Abstract: A fluorescent light-emitting module includes: a light source, a phosphor wheel including yellow phosphor that emits first fluorescence when excited by excitation light emitted by the light source; a color wheel including a color filter that trims the first fluorescence to desired color light by cutting a part of the first fluorescence; a red phosphor that emits second fluorescence when excited by a part of the first fluorescence.

公开(公告)号：US20240085773A1

公开(公告)日：2024-03-14

申请号：US18039109

申请日：2021-10-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yosuke HONDA ,  Shinichi KITAOKA ,  Noriyasu NAKASHIMA ,  Yoshiyuki TAKAHIRA

IPC: G03B21/20 ,  C09K11/77 ,  G02B26/00 ,  G03B21/16

CPC classification number: G03B21/204 ,  C09K11/7769 ,  G02B26/008 ,  G03B21/16

Abstract: A fluorescence emitting module includes: a fluorescent substrate consisting essentially of a sintered fluorescent substance that includes a fluorescent material; and a rotator that rotates the fluorescent substrate about an axis extending in a thickness direction of the fluorescent substrate.

公开(公告)号：US20240060632A1

公开(公告)日：2024-02-22

申请号：US18259382

申请日：2021-12-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noboru IIZAWA ,  Yosuke HONDA

IPC: F21V29/502 ,  F21V29/74 ,  F21V9/32

CPC classification number: F21V29/502 ,  F21V29/745 ,  F21V9/32

Abstract: A phosphor wheel includes: a substrate including a first principal surface and a second principal surface; a phosphor layer; and a heat dissipating member. The heat dissipating member includes: a projecting portion projecting toward one of the principal surfaces and including a contact surface that contacts the one of the principal surfaces; and fins provided by cutting and raising regions in a peripheral region of the heat dissipating member excluding a central portion of the heat dissipating member. The regions each include a notch provided by cutting off part of a first side of the region opposite to a second side of the region continuous with a corresponding one of the fins. The projecting portion secures a certain distance between the substrate and the heat dissipating member and conducts heat in the substrate to the peripheral region of the heat dissipating member.

公开(公告)号：US20180299110A1

公开(公告)日：2018-10-18

申请号：US15950308

申请日：2018-04-11

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hiroshi ASANO ,  Yosuke HONDA

IPC: F21V29/10 ,  F21V9/45 ,  F21V9/20

CPC classification number: G02B26/008 ,  F21S10/007 ,  G03B21/14 ,  G03B21/204

Abstract: A phosphor wheel includes: a substrate; and a plurality of phosphor layers disposed apart from each other on the substrate along a circumferential direction. Each phosphor layer includes a first fluorescence emitter and a second fluorescence emitter that are disposed side by side along the circumferential direction and emit fluorescence having mutually different colors. A fluorescence efficiency of the second fluorescence emitter when the second fluorescence emitter is irradiated with excitation light is lower than a fluorescence efficiency of the first fluorescence emitter when the first fluorescence emitter is irradiated with the excitation light. In plan view, a blank portion is located adjacent to the second fluorescence emitter in the circumferential direction, the blank portion being a portion of the substrate where no phosphor layer is disposed. The phosphor wheel rotates to cause the second fluorescence emitter to be irradiated with the excitation light immediately after the blank portion.