LIGHT SOURCE DEVICE AND PROJECTION IMAGE DISPLAY DEVICE

    公开(公告)号:US20230280643A1

    公开(公告)日:2023-09-07

    申请号:US18196782

    申请日:2023-05-12

    CPC classification number: G03B21/2073 G02B27/283 G03B21/2033 G03B21/2066

    Abstract: A light source device includes: a first light source that emits light of first linear polarization; a half mirror that separates emitted light from the first light source into first light traveling to a first optical path and second light traveling to a second optical path; a polarized light combination mirror that combines the first light and the second light; an optical path change element that is disposed on the second optical path and reflects the second light and guides the second light to the polarized light combination mirror; and a retardation plate that is disposed on the second optical path and converts the second light into second linear polarization inclined with respect to the first linear polarization. The optical path change element is disposed such that point images of the first light and point images of the second light on the polarized light combination mirror are alternately arranged.

    LIGHT SOURCE DEVICE AND PROJECTION DISPLAY APPARATUS

    公开(公告)号:US20210321066A1

    公开(公告)日:2021-10-14

    申请号:US17355536

    申请日:2021-06-23

    Inventor: Takanori YOGO

    Abstract: A light source device includes: a first light emitting device including a plurality of first solid-state light emitting elements arranged at a regular interval in a two dimensional array form; a second light emitting device including a plurality of second solid-state light emitting elements arranged at a regular interval in a two dimensional array form; and a first light combining plate including a first region and a second region, the first region transmitting first light beams emitted from the plurality of first solid-state light emitting elements of the first light emitting device, the second region reflecting second light beams emitted from the plurality of second solid-state light emitting elements of the second light emitting device. Beam arrangement of (i) the first light beams transmitted through the first light combining plate and (ii) the second light beams reflected by the first light combining plate form a closest packed array.

    OPTICAL MATERIAL, OPTICAL ELEMENT AND HYBRID OPTICAL ELEMENT
    4.
    发明申请
    OPTICAL MATERIAL, OPTICAL ELEMENT AND HYBRID OPTICAL ELEMENT 审中-公开
    光学材料,光学元件和混合光学元件

    公开(公告)号:US20150276984A1

    公开(公告)日:2015-10-01

    申请号:US14668632

    申请日:2015-03-25

    CPC classification number: G02B1/02 G02B1/002 G02B1/04

    Abstract: An optical material is composed of a resin material and inorganic fine particles dispersed in the resin material. The inorganic fine particles contain at least gallium phosphate fine particles. An optical element is formed of the above-described optical material. A hybrid optical element includes a first optical element and a second optical element disposed on an optical surface of the first optical element. The second optical element is the above-described optical element.

    Abstract translation: 光学材料由树脂材料和分散在树脂材料中的无机细颗粒构成。 无机细颗粒至少含有磷酸镓细颗粒。 光学元件由上述光学材料形成。 混合光学元件包括设置在第一光学元件的光学表面上的第一光学元件和第二光学元件。 第二光学元件是上述光学元件。

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