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公开(公告)号：US20180292077A1
公开(公告)日：2018-10-11
申请号：US15765260
申请日：2016-10-06
Inventor： Masahito YAMANA , Noboru IIZAWA , Yoshiyuki NAKANO
IPC: F21V29/502 , F21V9/30 , G03B21/16 , G02B7/00
CPC classification number: F21V29/502 , F21V5/004 , F21V9/30 , F21V13/02 , F21W2131/20 , F21Y2115/10 , F21Y2115/30 , G02B5/1876 , G02B7/008 , G03B21/16
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.
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公开(公告)号：US20190195484A1
公开(公告)日：2019-06-27
申请号：US16322145
申请日：2017-09-14
Inventor： Masahito YAMANA , Noboru IIZAWA , Shintaro HAYASHI , Yoshiyuki NAKANO
IPC: F21V29/502 , G02B5/20 , H01L33/50 , H01S5/06
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.
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公开(公告)号：US20180283651A1
公开(公告)日：2018-10-04
申请号：US15765261
申请日：2016-10-06
Inventor： Masahito YAMANA , Shintaro HAYASHI
CPC classification number: F21V5/04 , F21V5/007 , F21V9/30 , F21Y2115/10 , G02B3/08 , G02B5/18 , G02B5/1876 , G02B5/20
Abstract: An optical member includes: a phosphor layer including a phosphor that converts a wavelength of a portion of light from a light source which is incident on an incidence face; and a microlens array that causes the portion of light wavelength-converted by the phosphor layer and the other portion of light transmitted through the phosphor layer to emerge from an emission face, in which a diffractive lens array for diffracting the portion of light wavelength-converted and the other portion of light transmitted is provided on the emission face of the microlens array, and a pitch of the diffractive lens array is different for each of predetermined sections.
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公开(公告)号：US20180366606A1
公开(公告)日：2018-12-20
申请号：US16108705
申请日：2018-08-22
Inventor： Youhei MURAKAMI , Akimichi MAEKAWA , Haruhisa HASHIMOTO , Hiroshi KANNO , Masahito YAMANA
IPC: H01L31/054 , H01L31/049 , H01L31/0224
Abstract: A solar cell module includes: a solar cell; a light reflector above a surface of the solar cell or around the solar cell, the light reflector being elongated and including a light reflective film and an insulating component; a protective component that covers the surface of the solar cell; and an encapsulant between (i) the solar cell and the light reflector and (ii) the protective component. The light reflective film has an uneven structure in which a recessed portion and a protruding portion are repeated in a direction crossing a longitudinal direction of the light reflector, and a tangential direction of at least part of a ridge line of the protruding portion and the longitudinal direction intersect when the solar cell is seen in a plan view.
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Patent Agency Ranking
公开(公告)号：US20180294390A1
公开(公告)日：2018-10-11
申请号：US15765258
申请日：2016-10-06
Inventor： Masahito YAMANA , Noboru IIZAWA , Jun HIRAI , Yoshiyuki NAKANO
IPC: H01L33/58 , F21V29/503 , H01L33/50 , F21V29/70 , G02B27/10
CPC classification number: H01L33/58 , A61B1/0653 , F21S2/00 , F21V5/005 , F21V9/30 , F21V29/502 , F21V29/503 , F21V29/70 , F21Y2115/30 , G02B5/20 , G02B27/1006 , G03B21/204 , H01L33/504 , H01L33/507 , H01S5/02
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.
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公开(公告)号：US20220082230A1
公开(公告)日：2022-03-17
申请号：US17423081
申请日：2019-12-18
Inventor： Noboru IIZAWA , Masahito YAMANA , Kazuyuki YAMAE , Tetsuya NISHI
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.
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公开(公告)号：US20200256552A1
公开(公告)日：2020-08-13
申请号：US16860674
申请日：2020-04-28
Inventor： Masahito YAMANA , Noboru IIZAWA , Shintaro HAYASHI , Yoshiyuki NAKANO
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.
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公开(公告)号：US20180303326A1
公开(公告)日：2018-10-25
申请号：US15951511
申请日：2018-04-12
Inventor： Masahito YAMANA , Noboru IIZAWA , Shintaro HAYASHI
CPC classification number: A61B1/0669 , A61B1/0653 , A61B1/0676 , A61B1/07 , F21Y2115/30 , G02B6/04 , G02B23/2469 , G02B27/0905
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.
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公开(公告)号：US20170102139A1
公开(公告)日：2017-04-13
申请号：US15285912
申请日：2016-10-05
Inventor： Noboru IIZAWA , Masahito YAMANA , Yoshiyuki NAKANO
Abstract: A lighting device includes: a substrate that is light transmissive and has one or more region in which a phosphor layer is formed; a heat transfer plate having a first surface in surface-to-surface contact with a surface of the substrate and having one or more apertures overlapping the one or more regions; and a heat dissipation plate having a surface in surface-to-surface contact with a second surface of the heat transfer plate opposite the first surface and having an aperture overlapping the one or more apertures.
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