Light emitting device and surface light source device

    公开(公告)号:US10794566B2

    公开(公告)日:2020-10-06

    申请号:US15451720

    申请日:2017-03-07

    Abstract: A light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incidence surface and an emission surface, and is disposed such that, in a cross section of the light emitting device, light emitted at least θ1=81° from a light emission center of the light emitting element is incident on the rear surface of the light flux controlling member, and the emission surface is formed such that, in the cross section of the light emitting device, a curve of a graph with an abscissa of θ1 and an ordinate of θ2 includes an inflection point, wherein θ2 is an angle between a line orthogonal to the optical axis and a tangent to the emission surface at a point P, the point P being an arrival point of light emitted from the light emission center at angle θ1.

    Light flux controlling member, light emitting apparatus, surface light source apparatus and display apparatus
    8.
    发明授权
    Light flux controlling member, light emitting apparatus, surface light source apparatus and display apparatus 有权
    光通量控制部件,发光装置,面光源装置以及显示装置

    公开(公告)号:US09086517B2

    公开(公告)日:2015-07-21

    申请号:US13665030

    申请日:2012-10-31

    CPC classification number: G02B3/0056 G02B19/0014 G02B19/0061 G02F1/133603

    Abstract: The present invention relates to light flux controlling member (140) formed by injection molding, light emitting apparatus (120) having light flux controlling member (140), surface light source apparatus (100) having light emitting apparatus (120), and a display apparatus having surface light source apparatus (100). Light flux controlling member (140) includes light control emission surface (141) configured to control light distribution of light emitted from light emitting element (130), and back face (142) opposite to light control emission surface (141). Light flux controlling member (140) is formed by injection molding by an overlap gate scheme, or by combination of the overlap gate scheme and a side gate scheme. Therefore, on back face (142) of light flux controlling member (140), there remains gate remnant (147) in such a manner to be in contact with an outer rim.

    Abstract translation: 本发明涉及通过注射成型形成的光通量控制部件(140),具有光通量控制部件(140)的发光装置(120),具有发光装置(120)的表面光源装置(100) 具有面光源装置(100)的装置。 光通量控制构件(140)包括被配置为控制从发光元件(130)发射的光的光分布的光控制发射表面(141)和与光控制发射表面(141)相对的背面(142)。 光通量控制构件(140)通过重叠栅极方案的注射成型或者通过重叠栅极方案和侧栅极方案的组合形成。 因此,在光束控制构件(140)的背面(142)上,以与外缘接触的方式保留栅极残留物(147)。

    Marker
    9.
    发明授权
    Marker 有权

    公开(公告)号:US10508904B2

    公开(公告)日:2019-12-17

    申请号:US16324182

    申请日:2017-07-13

    Abstract: This marker comprises a plurality of convex-surface section disposed along the X-axis direction and a plurality of detection sections disposed so as to face the convex-surface sections. Each of the detection sections is located, in the protruding direction of the convex-surface sections, closer to the convex-surface section side than a focal point on an image surface of the convex-surface section of the first optical unit in the X direction and is located on a single plane located further on the opposite side from the protruding direction than the edge of the image surface. The image surface extends from the first optical unit to the nth optical unit in the X direction, where n is at least 2.

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