公开(公告)号：US20240248384A1

公开(公告)日：2024-07-25

申请号：US18625786

申请日：2024-04-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiki Tanaka ,  Takashi Ikeda ,  Manabu Okuno ,  Makoto Maeda

IPC: G03B21/20

CPC classification number: G03B21/204 ,  G03B21/2013 ,  G03B21/2066 ,  G03B21/2073 ,  G03B21/208

Abstract: A light source device includes a light source element that emits light source light in a first wavelength region, a selective reflection element that separates the light source light into first light and second light, a first light direction conversion element that reflects the first light guided in a first direction from the selective reflection element in a second direction, and a wavelength conversion element that converts the first light into third light in a second wavelength region. The first light direction conversion element reflects the third light in a third direction opposite to the first direction. The selective reflection element transmits the third light reflected by the first light direction conversion element. The selective reflection element guides the second light and the third light in the third direction. The light source element emits the light source light in a direction different from the second direction.

公开(公告)号：US10712646B2

公开(公告)日：2020-07-14

申请号：US16249826

申请日：2019-01-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ikeda

IPC: G03B21/20 ,  G02B26/00 ,  H04N9/31 ,  F21K9/64

Abstract: A phosphor wheel of a first exemplary embodiment in the present disclosure includes a base plate, an annular phosphor provided on the base plate, and a reflective coating provided on a partial area of the annular phosphor. Further, a phosphor wheel of a second exemplary embodiment includes a base plate, an annular phosphor layer that is provided on the base plate and constituted by a plurality of phosphor segments, and a reflective coating provided on a partial area of the annular phosphor layer.

公开(公告)号：US10394110B2

公开(公告)日：2019-08-27

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 ,  G03B21/20 ,  F21V29/83 ,  F21V29/77 ,  F21V14/08 ,  F21V9/30

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：US10162252B2

公开(公告)日：2018-12-25

申请号：US15646628

申请日：2017-07-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ikeda ,  Masafumi Tanaka

IPC: F21V9/16 ,  G03B21/20 ,  F21V9/30 ,  B32B7/12 ,  B32B15/04 ,  B32B37/10 ,  G02B26/00 ,  H04N9/31 ,  F21Y115/30 ,  B32B38/00

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：US11126072B2

公开(公告)日：2021-09-21

申请号：US16386908

申请日：2019-04-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiki Tanaka ,  Manabu Okuno ,  Takashi Ikeda

IPC: G02B21/20 ,  G03B21/20 ,  G03B21/00

Abstract: A phosphor wheel of exemplary embodiment in the present disclosure includes a substrate, a phosphor region circularly provided on one surface of the substrate, a light processing region circularly provided on an other surface of the substrate and entered by incident light, a light processing body provided in the light processing region, a light-transmissive region provided in the substrate, and a drive device rotating the substrate.

公开(公告)号：US10921697B2

公开(公告)日：2021-02-16

申请号：US16386883

申请日：2019-04-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ikeda ,  Makoto Maeda ,  Yusaku Nishikawa

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

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：US10474019B2

公开(公告)日：2019-11-12

申请号：US16196457

申请日：2018-11-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi Ikeda ,  Masafumi Tanaka

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

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：US10268111B2

公开(公告)日：2019-04-23

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: G02B26/00 ,  G03B21/20

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：US11442348B2

公开(公告)日：2022-09-13

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 ,  G03B21/00

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：US10983333B2

公开(公告)日：2021-04-20

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.