公开(公告)号：US20230314920A1

公开(公告)日：2023-10-05

申请号：US18207371

申请日：2023-06-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigekazu YAMAGISHI ,  Takashi IKEDA ,  Masato TANAKA

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

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

Abstract: A phosphor wheel includes a substrate that has a disk shape, and includes a first main surface, a second main surface opposite to the first main surface, and an opening, a phosphor layer that has a curved shape and is provided along a circumferential direction of the substrate on the first main surface, the phosphor layer being provided side by side with the opening in the circumferential direction in plan view, a heat dissipation fin that is provided on the second main surface, and a projection that is provided on the second main surface, and is different from the heat dissipation fin. The heat dissipation fin and the projection are disposed integrally with the substrate.

公开(公告)号：US20200088990A1

公开(公告)日：2020-03-19

申请号：US16565887

申请日：2019-09-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA

IPC: G02B26/00 ,  G03B21/20

Abstract: A light source device includes a phosphor wheel, a light source, a color separating-and-mixing element, and a light-guide optics. The phosphor wheel includes a base plate having a first light passage area and a second light passage area as a pair of light passage areas being annularly and point symmetrically arranged with respect to a center of the base plate, a phosphor area annularly formed on the base plate, and a motor that rotates the base plate. The color separating-and-mixing element disposed between the light source and the phosphor wheel changes a direction of traveling of fluorescence created as a result of light having being incident on the phosphor area and been converted in wavelength. The light-guide optics is provided to cause light from the light source to travel through the first light passage area, then through the second light passage area, and finally enter into the color separating-and-mixing element.

公开(公告)号：US20210124246A1

公开(公告)日：2021-04-29

申请号：US17141503

申请日：2021-01-05

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA ,  Makoto MAEDA ,  Yusaku NISHIKAWA

IPC: G03B21/20 ,  G02B26/00

Abstract: A wavelength conversion element includes a first phosphor region and a second phosphor region. The second phosphor region is disposed in a thickness direction of the first phosphor region and has a phosphor particle with a particle size different from a particle size of a phosphor particle positioned in the first phosphor region.

公开(公告)号：US20210157126A1

公开(公告)日：2021-05-27

申请号：US17104417

申请日：2020-11-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yusaku NISHIKAWA ,  Taiki BESSHO ,  Yasuto SHIROI ,  Shigekazu YAMAGISHI ,  Takashi IKEDA

IPC: G02B26/00 ,  G03B21/20

Abstract: A phosphor wheel device includes a motor having a rotation shaft, a phosphor wheel substrate attached to one end side of the rotation shaft, and a first balancer fixed to the phosphor wheel substrate. The first balancer has at least one opening that is opened to an outside of the phosphor wheel device.

公开(公告)号：US20190086780A1

公开(公告)日：2019-03-21

申请号：US16196457

申请日：2018-11-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA ,  Masafumi TANAKA

IPC: G03B21/20 ,  G02B26/00 ,  B32B7/12 ,  B32B15/04 ,  B32B37/10 ,  F21V9/30 ,  H04N9/31 ,  B32B38/00 ,  F21Y115/30

CPC classification number: G03B21/204 ,  B32B7/12 ,  B32B15/04 ,  B32B37/10 ,  B32B2038/0076 ,  B32B2250/02 ,  B32B2307/422 ,  B32B2309/02 ,  B32B2311/24 ,  B32B2313/00 ,  B32B2551/00 ,  F21V9/30 ,  F21Y2115/30 ,  G02B26/008 ,  H04N9/31 ,  H04N9/3111 ,  H04N9/3158 ,  H04N9/3161 ,  H04N9/3164

Abstract: The phosphor disc disclosed here includes the following structural elements: a disc-shaped metal plate; a phosphor layer disposed circumferentially on the metal plate; and a bonding layer for bonding the phosphor layer to the metal plate. The metal plate curves convexly toward the phosphor layer.

公开(公告)号：US20180095350A1

公开(公告)日：2018-04-05

申请号：US15718348

申请日：2017-09-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masafumi TANAKA ,  Shigekazu YAMAGISHI ,  Takashi IKEDA

IPC: G03B21/16 ,  F21V9/16 ,  G03B21/20 ,  F21V14/08 ,  F21V29/83 ,  F21V29/77

CPC classification number: G03B21/16 ,  F21V9/30 ,  F21V14/08 ,  F21V29/77 ,  F21V29/83 ,  G03B21/2013 ,  G03B21/204

Abstract: A phosphor wheel module includes a substrate and a phosphor region disposed on a surface of the substrate. The phosphor region includes a phosphor that is disposed on at least a part of a circumference of a circle with a first radius from a rotation center of the substrate. The substrate includes a ventilation region and a heat conduction region. The ventilation region includes a plurality of openings that is located closer to the rotation center of the substrate than the phosphor region. The heat conduction region is located farther away from the rotation center of the substrate than the phosphor region.

公开(公告)号：US20230418047A1

公开(公告)日：2023-12-28

申请号：US18242639

申请日：2023-09-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA ,  Yusaku NISHIKAWA ,  Yoshiki TANAKA

IPC: G02B26/00 ,  G03B21/20

CPC classification number: G02B26/008 ,  G03B21/204

Abstract: The wavelength conversion device includes a wavelength conversion element that generates, from incident first light, second light having a wavelength different from a wavelength of the first light and third light having a wavelength different from the wavelength of the first light and the wavelength of the second light. The wavelength conversion element includes a plurality of wavelength converters arranged adjacent to each other in a first direction. Each of the plurality of wavelength converters includes a first phosphor layer that converts the first light into fluorescent light that is the second light, and a second phosphor layer that converts the first light into fluorescent light that is the third light. The first phosphor layer and the second phosphor layer are arranged adjacent to each other to cause the plurality of first phosphor layers and the plurality of second phosphor layers to be alternately arranged in the first direction.

公开(公告)号：US20170269461A1

公开(公告)日：2017-09-21

申请号：US15450244

申请日：2017-03-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA ,  Masafumi TANAKA ,  Shigekazu YAMAGISHI

IPC: G03B21/20 ,  G02B26/00

CPC classification number: G03B21/204 ,  G02B26/008

Abstract: A phosphor wheel includes a disc-shaped substrate and a phosphor ring fixedly bonded to the substrate. At least three cut-out sections or openings are formed on a rim of the substrate. The shortest length from the center of the substrate to inner edges of the cut-out sections or inner edges of the openings is generally equal to a radius of an outer circumference of the phosphor ring.

公开(公告)号：US20170227192A1

公开(公告)日：2017-08-10

申请号：US15298736

申请日：2016-10-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi IKEDA ,  Masafumi TANAKA ,  Shigekazu YAMAGISHI ,  Hiroki SUGIYAMA

IPC: F21V9/16 ,  F21V29/89 ,  F21V13/14 ,  G03B21/20 ,  G02B26/00 ,  F21V7/00

CPC classification number: F21V9/30 ,  F21V7/00 ,  F21V13/14 ,  F21V29/89 ,  G02B26/008 ,  G03B21/008 ,  G03B21/16 ,  G03B21/204

Abstract: A phosphor wheel includes: a substrate; a light reflection layer disposed on one surface of the substrate; a phosphor layer; and a bonding layer which is located between and bonds the light reflection layer and the phosphor layer, wherein the bonding layer contains a particle which is higher in thermal conductivity than a base material of the bonding layer and higher in light reflectance than the light reflection layer.