公开(公告)号：US10381532B2

公开(公告)日：2019-08-13

申请号：US15765258

申请日：2016-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Jun Hirai ,  Yoshiyuki Nakano

IPC: H01L33/58 ,  F21V9/30 ,  G02B5/20 ,  H01S5/02 ,  F21V29/502 ,  F21V5/00 ,  G03B21/20 ,  H04N9/31 ,  F21V29/503 ,  F21V29/70 ,  G02B27/10 ,  H01L33/50 ,  A61B1/06 ,  F21Y115/30 ,  F21S2/00

Abstract: A wavelength conversion device includes a light source for emitting light having a predetermined wavelength in a wavelength region from ultraviolet light to visible light, a phosphor layer for performing wavelength conversion on light which is emitted from the light source and incident on an incidence face, and an optical member which is arranged between the light source and the phosphor layer, splits and separates light emitted from the light source and emits the split and separated light beams to the incidence face of phosphor layer.

公开(公告)号：US12013526B2

公开(公告)日：2024-06-18

申请号：US18259975

申请日：2021-12-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noboru Iizawa ,  Yosuke Honda

IPC: G02B26/00 ,  F21V29/502

CPC classification number: G02B26/008 ,  F21V29/502

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 (i) a contact surface that contacts the one of the principal surfaces and (ii) a peripheral wall to which the contact surface serves as a bottom surface; 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 projecting portion includes, in the peripheral wall, through-holes provided for ventilation. The projecting portion contacts the substrate via the contact surface to secure a certain distance between the substrate and the heat dissipating member and conduct heat in the substrate to the peripheral region of the heat dissipating member.

公开(公告)号：US10912452B2

公开(公告)日：2021-02-09

申请号：US15951511

申请日：2018-04-12

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Shintaro Hayashi

IPC: A61B1/06 ,  G02B27/09 ,  A61B1/07 ,  G02B6/04 ,  G02B23/24 ,  G02B27/30 ,  F21Y115/30 ,  G02B6/26

Abstract: An illumination light guiding device includes a phosphor layer that is disposed on another surface opposite to one surface of a board, and converts the wavelengths of a plurality of light beams transmitted through the board and incident on one surface of the phosphor layer, and an emission-side fiber including a plurality of optical fibers that are provided so as to be erected side by side on another surface opposite to one surface of the phosphor layer, each optical fiber guiding a different one of the plurality of light beams having wavelengths converted by the phosphor layer.

公开(公告)号：US11976810B2

公开(公告)日：2024-05-07

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 ,  F21V9/32 ,  F21V29/74

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

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：US11966151B2

公开(公告)日：2024-04-23

申请号：US17622061

申请日：2020-07-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noboru Iizawa ,  Yosuke Honda

IPC: G03B21/20 ,  G03B21/16

CPC classification number: G03B21/16 ,  G03B21/204

Abstract: A phosphor wheel includes a substrate including a first principal surface and a second principal surface located opposite to each other, a phosphor layer on the first principal surface, and a heat dissipating member disposed so as to oppose one of the first principal surface and the second principal surface. The heat dissipating member includes a projecting portion that projects from a center portion of the heat dissipating member, and the projecting portion includes a contact surface that contacts the one of the first principle surface and the second principle surface. The heat dissipating member further includes fins formed in a peripheral region of the heat dissipating member excluding the center portion. 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：US11493185B2

公开(公告)日：2022-11-08

申请号：US17423081

申请日：2019-12-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noboru Iizawa ,  Masahito Yamana ,  Kazuyuki Yamae ,  Tetsuya Nishi

IPC: F21V9/30 ,  F21V7/00 ,  F21V8/00 ,  F21V29/502

Abstract: An illuminating device according to the present disclosure is of a reflective type and uses a laser beam. The illuminating device includes: a laser element that emits a laser beam; an optical fiber that transmits the laser beam emitted by the laser element; a phosphor layer that converts a wavelength of light incident on one of surfaces and emits the light through the one of the surfaces; and an optical component that causes reflected light of the laser beam transmitted through the optical fiber to be incident on the one of the surfaces of the phosphor layer. With the illuminating device, an intensity distribution of the light incident on the one of the surfaces of the phosphor layer is sparse at a central region.

公开(公告)号：US10859249B2

公开(公告)日：2020-12-08

申请号：US16860674

申请日：2020-04-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Shintaro Hayashi ,  Yoshiyuki Nakano

IPC: F21V29/502 ,  F21V9/30 ,  F21V13/02 ,  G02B5/20 ,  H01S5/06 ,  H01L33/50 ,  F21Y115/30 ,  F21V5/04 ,  F21V29/70 ,  F21V29/89

Abstract: A wavelength conversion device for laser light including a laser light source that emits laser light having a predetermined wavelength; a first substrate that is light-transmissive; a second substrate that is light-transmissive; a phosphor layer provided between and in surface contact with the first substrate and the second substrate, the phosphor layer converting a wavelength of the laser light; and a gap-maintaining component located between the first substrate and the second substrate, the gap-maintaining component adjusting a thickness of the phosphor layer by maintaining a uniform distance between the first substrate and the second substrate. Each of the first substrate and the second substrate has a thermal conductivity higher than a thermal conductivity of the phosphor layer. The gap-maintaining component is a plurality of thickness adjustment particles that are light-transmissive and have a shape having a substantially equal diameter, and the shape is one of wire-shaped, ring-shaped, and protruding.

公开(公告)号：US10677437B2

公开(公告)日：2020-06-09

申请号：US16322145

申请日：2017-09-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Shintaro Hayashi ,  Yoshiyuki Nakano

IPC: F21V9/16 ,  F21V29/502 ,  H01S5/06 ,  H01L33/50 ,  G02B5/20 ,  F21V13/02 ,  F21V9/30 ,  F21Y115/30 ,  F21V29/89 ,  F21V29/70 ,  F21V5/04

Abstract: A wavelength conversion device, etc., for laser light according to the present disclosure includes: a first substrate that is light-transmissive; a second substrate that is light-transmissive; and a phosphor layer provided between the first substrate and the second substrate and including a phosphor that converts the wavelength of incident laser light having a predetermined wavelength. The laser light has a laser irradiation power density of at least 0.03 W/mm2, and each of the first substrate and the second substrate has a thermal conductivity higher than the thermal conductivity of the phosphor layer.

公开(公告)号：US10352545B2

公开(公告)日：2019-07-16

申请号：US15765260

申请日：2016-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masahito Yamana ,  Noboru Iizawa ,  Yoshiyuki Nakano

IPC: F21V21/00 ,  F21V29/502 ,  F21V9/30 ,  G02B7/00 ,  G03B21/16 ,  F21V5/00 ,  G02B5/18 ,  F21Y115/10 ,  F21V13/02 ,  F21W131/20 ,  F21Y115/30

Abstract: A wavelength conversion device includes: a light source that emits light having a predetermined wavelength included in a wavelength range from ultraviolet light to visible light; a phosphor layer that converts the wavelength of light from the light source which is incident on an incidence face thereof; and an optical component that is disposed between the light source and the phosphor layer, and projects light emitted by the light source onto the incidence face of the phosphor layer in a ring shape.