中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.016 seconds)

    Light emitting device with high near-field contrast ratio
    1.
    发明授权
    Light emitting device with high near-field contrast ratio 有权

    公开(公告)号：US12100786B2

    公开(公告)日：2024-09-24

    申请号：US17341743

    申请日：2021-06-08

    Applicant: LUMILEDS LLC

    Inventor： Grigoriy Basin ,  Lex Alan Kosowsky ,  Chee Ming Thoe ,  Choon Earn Chan

    IPC: H01L33/50 ,  H01L33/60

    CPC classification number: H01L33/501 ,  H01L33/505 ,  H01L33/60 ,  H01L2933/0041 ,  H01L2933/0058

    Abstract: A light emitting device includes an LED having a light emitting top surface and sidewalls. A phosphor structure is attached to the light emitting surface of the LED. The phosphor structure has a light emitting top surface facing away from the LED light emitting surface, and sidewalls. A light reflective material is arranged to cover the sidewalls of the LED and the phosphor structure. A light absorptive region is defined in the light reflective material around a perimeter of the light emitting surface of the phosphor structure. The light absorptive region may be spaced apart from the perimeter of the phosphor structure by a gap. The light absorptive region may be formed by ultraviolet laser illumination of the light reflecting material.

    LED ARRAY BETWEEN FLEXIBLE AND RIGID SUBSTRATES
    2.
    发明公开
    LED ARRAY BETWEEN FLEXIBLE AND RIGID SUBSTRATES 审中-公开

    公开(公告)号：US20230411572A1

    公开(公告)日：2023-12-21

    申请号：US18206309

    申请日：2023-06-06

    Applicant: Lumileds LLC

    Inventor： Wouter Soer ,  Grigoriy Basin ,  Brendan Jude Moran ,  Johannes Willem Herman Sillevis Smitt

    IPC: H01L33/60 ,  H01L25/075 ,  H01L33/54

    CPC classification number: H01L33/60 ,  H01L25/0753 ,  H01L33/54 ,  H01L2933/005 ,  H01L2933/0058

    Abstract: A light source can include a transparent flexible substrate. A sparse array of light-emitting diodes (LEDs) can be disposed on the transparent flexible substrate. A rigid substrate can be adhered to the transparent flexible substrate such that the sparse array of LEDs is located between the rigid substrate and the transparent flexible substrate. The rigid substrate can be adhered to the transparent flexible substrate with an adhesive layer. The sparse array of LEDs can be encapsulated in an adhesive of the adhesive layer. The adhesive can have a refractive index that is between a refractive index of the transparent flexible substrate and a refractive index of the rigid substrate, inclusive. The sparse array of LEDs can have a light-emitting area that is less than or equal to a specified fraction of a surface area of the sparse array, such as 5 percent or 1 percent.

    Pigmented and scattering particles in side coating materials for LED applications
    4.
    发明授权
    Pigmented and scattering particles in side coating materials for LED applications 有权

    公开(公告)号：US11411043B2

    公开(公告)日：2022-08-09

    申请号：US17077928

    申请日：2020-10-22

    Applicant: Lumileds LLC

    Inventor： Grigoriy Basin ,  Kentaro Shimizu ,  Brendan Moran ,  Emma Dohner ,  Noad Shapiro ,  Marcel Bohmer

    IPC: H01L27/15

    Abstract: Phosphor-converted LED side reflectors disclosed herein comprise pigments that are photochemically stable under illumination by light from the pcLED. The pigments absorb light in at least a portion of the spectrum of light emitted by the first phosphor converted LED. The side reflector may also comprise light scattering particles or air voids. The pigments, light scattering particles, or air voids may be homogeneously distributed in the reflector. Alternatively the side reflector may be layered, with the pigments, light scattering particles, or air voids inhomogeneously distributed in the reflector. The side reflector can include phosphor particles.

    LED module with high near field contrast ratio
    6.
    发明授权
    LED module with high near field contrast ratio 有权

    公开(公告)号：US11043619B2

    公开(公告)日：2021-06-22

    申请号：US16469913

    申请日：2017-12-08

    Applicant: Lumileds LLC

    Inventor： Grigoriy Basin ,  Anton Belyaev ,  Lex Kosowsky ,  Yi Shyan Goh

    IPC: H01L33/36 ,  H01L33/56 ,  H01L25/075 ,  H01L33/48 ,  H01L33/50 ,  H01L33/60

    Abstract: A light emitting diode module comprising: at least one light emitting diode structure, an integrated reflector arrangement that comprises a reflector surface for reflecting light from a light emitting area of the light emitting diode structure. The integrated reflector arrangement further comprises a back reflection surface for diffusely reflecting light emitted via a side surface of the light emitting diode structure back to the light emitting diode structure. The back reflection surface is directly attached to at least a part of the side surface such that during operation of the light emitting diode module an emission of stray light by means of the side surface is reduced. The invention finally describes a flash module, an automotive front lighting or a projection light emitting diode system comprising at least one light emitting diode module.

    Wavelength converted light emitting device with small source size
    10.
    发明授权
    Wavelength converted light emitting device with small source size 有权

    公开(公告)号：US11133442B2

    公开(公告)日：2021-09-28

    申请号：US16890655

    申请日：2020-06-02

    Applicant: LUMILEDS LLC

    Inventor： Grigoriy Basin ,  Brendan Jude Moran ,  Hideo Kageyama

    IPC: H01L33/50 ,  H01L33/60

    Abstract: A lighting structure according to embodiments of the invention includes a semiconductor light emitting device and a flat wavelength converting element attached to the semiconductor light emitting device. The flat wavelength converting element includes a wavelength converting layer for absorbing light emitted by the semiconductor light emitting device and emitting light of a different wavelength. The flat wavelength converting element further includes a transparent layer. The wavelength converting layer is formed on the transparent layer.

Patent Agency Ranking