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    ILLUMINATOR AND PROJECTOR
    2.
    发明申请
    ILLUMINATOR AND PROJECTOR 有权

    公开(公告)号：US20220299854A1

    公开(公告)日：2022-09-22

    申请号：US17698136

    申请日：2022-03-18

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Mizuha HIROKI ,  Koya SHIRATORI ,  Shinichi YOTSUYA ,  Tetsuo SHIMIZU ,  Ryuta KOIZUMI ,  Shoichi UCHIYAMA ,  Tomoko AKAGAWA

    IPC: G03B21/20

    Abstract: An illuminator includes a light source that outputs first light, a wavelength converter that converts the first light into second light, an optical element that reflects the first light toward the wavelength converter and transmits the second light, and an illumination system which is disposed on the opposite side of the optical element from the wavelength converter. The wavelength converter includes a substrate, a reflection layer facing a first surface of the substrate, a wavelength conversion layer having a second surface and facing the reflection layer, and a structural element facing the second surface and having a plurality of protrusions that reflect part of the first light. The plurality of protrusions each have an inclining surface that inclines with respect to the second surface, and at least part of the first light and reflected off the inclining surface enters the illumination system without traveling via the optical element.

    LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS
    5.
    发明申请
    LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS 审中-公开

    公开(公告)号：US20180233692A1

    公开(公告)日：2018-08-16

    申请号：US15951338

    申请日：2018-04-12

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Koya SHIRATORI ,  Yuki HANAMURA ,  Tsutomu ASAKAWA

    IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

    Abstract: An organic EL element includes a pixel electrode, a light emitting function layer that is formed on the pixel electrode, an electron injection layer formed on the light emitting function layer, and a counter electrode that is formed on the electron injection layer and that has semi-transmissive reflectivity, in which the counter electrode contains a reductive material that reduces material of the electron injection layer and Ag with atomic ratio of 75% or more, and an adsorption layer is formed on the counter electrode.

    LIGHT EMITTING APPARATUS AND ELECTRONIC APPARATUS
    6.
    发明申请
    LIGHT EMITTING APPARATUS AND ELECTRONIC APPARATUS 审中-公开
    发光装置和电子装置

    公开(公告)号：US20150060811A1

    公开(公告)日：2015-03-05

    申请号：US14463152

    申请日：2014-08-19

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Koya SHIRATORI

    IPC: H01L51/52 ,  H01L27/32

    CPC classification number: H01L51/5265 ,  H01L27/3206 ,  H01L2251/5315 ,  H01L2251/558

    Abstract: In the light emitting apparatus having a resonance structure for adjusting an optical path length between the reflecting layer and the translucent reflecting layer, in which the emitting layer performs internal luminescence on a first wavelength region and a second wavelength region on a short wavelength side with respect to the first wavelength region, in the second wavelength region, a light emitting peak wavelength, a resonance peak wavelength, and an output wavelength satisfy a relationship of the light emitting peak wavelength>the output wavelength>the resonance peak wavelength, and film thicknesses of an array cavity layer and the emitting layer are adjusted so that an emission intensity of the output wavelength is equal to or less than 15% of an emission intensity of the output wavelength.

    Abstract translation: 在具有用于调整反射层和半透射反射层之间的光路长度的共振结构的发光装置中，其中发光层在短波长侧的第一波长区域和第二波长区域上执行内部发光， 对于第一波长区域，在第二波长区域中，发光峰值波长，共振峰值波长和输出波长满足发光峰值波长>输出波长>谐振峰值波长的关系，并且膜厚度 调整阵列腔层和发光层，使得输出波长的发射强度等于或小于输出波长的发射强度的15％。

    WAVELENGTH CONVERSION ELEMENT, ILLUMINATION DEVICE, AND PROJECTOR
    7.
    发明申请
    WAVELENGTH CONVERSION ELEMENT, ILLUMINATION DEVICE, AND PROJECTOR 有权

    公开(公告)号：US20220299855A1

    公开(公告)日：2022-09-22

    申请号：US17698606

    申请日：2022-03-18

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Koya SHIRATORI ,  Mizuha HIROKI ,  Tetsuo SHIMIZU

    IPC: G03B21/20 ,  H01L33/50 ,  H01L33/60

    Abstract: A wavelength conversion element includes a substrate, reflection layer on the substrate, wavelength conversion layer in the reflection layer and converting a light in a first wavelength range into a light in a second wavelength range, structure in the wavelength conversion layer and scattering a part of the light in the first wavelength range, and optical layer in the structure, reflecting a part of the light in the first wavelength range, transmitting another part of the light in the first wavelength range, and transmitting the light in the second wavelength range. The structure includes a first structure portion, second structure portion, and planar portion between the first and second structure portions, the optical layers in the first and second structure portions have first reflectance for the light in the first wavelength range, and the optical layer in the planar portion has second reflectance.

    LIGHT SOURCE APPARATUS AND PROJECTOR
    8.
    发明申请
    LIGHT SOURCE APPARATUS AND PROJECTOR 有权

    公开(公告)号：US20210382380A1

    公开(公告)日：2021-12-09

    申请号：US17337659

    申请日：2021-06-03

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Ryuta KOIZUMI ,  Koya SHIRATORI

    IPC: G03B21/20 ,  H04N9/31

    Abstract: A light source apparatus according to an aspect of the present disclosure includes a light source section that outputs light belongs to a first wavelength band, a wavelength converter that converts the light that belongs to the first wavelength band into light that belongs to a second wavelength band different from the first wavelength band, and a first optical element that reflects the light that belongs to the first wavelength band and transmits the light that belongs to the second wavelength band. A first angle of incidence of the chief ray of the light that belongs to the first wavelength band with respect to a first surface of the first optical element is smaller than 45°, and a second angle of incidence of the chief ray of the light that belongs to the second wavelength band with respect to the first surface is smaller than 45°.

    LIGHT SOURCE DEVICE AND PROJECTOR
    9.
    发明申请
    LIGHT SOURCE DEVICE AND PROJECTOR 有权

    公开(公告)号：US20210165312A1

    公开(公告)日：2021-06-03

    申请号：US17105978

    申请日：2020-11-27

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Wataru YASUMATSU ,  Tomoko AKAGAWA ,  Koya SHIRATORI

    IPC: G03B21/20 ,  H04N9/31 ,  G03B33/12

    Abstract: Alight source device according to the present disclosure includes a light source section configured to emit first light in a first wavelength band, a first optical element configured to collect the first light emitted from the light source section, a second optical element having a first plane of incidence and a first exit surface, and a wavelength conversion element having a second plane of incidence and a second exit surface, and configured to convert the first light entering the wavelength conversion element through the second plane of incidence into second light having a second wavelength band, wherein the second optical element and the wavelength conversion element are disposed in a state in which the first exit surface and the second plane of incidence are opposed to each other at a distance from each other, and the second plane of incidence is larger in size than the first exit surface.

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