公开(公告)号：US20150323729A1

公开(公告)日：2015-11-12

申请号：US14704147

申请日：2015-05-05

Applicant: Enplas Corporation

Inventor： Hiroshi TAKATORI ,  Yu KAMIJO

IPC: F21V8/00

CPC classification number: G02B6/0051 ,  G02B6/0055 ,  G02B6/0073 ,  G02F1/133603 ,  G02F1/133605 ,  G02F2001/133607

Abstract: A light emitting device includes a substrate in which a specular reflection area that specularly reflects reaching light is disposed on one surface, a light emitting element disposed on the substrate to emit light at least from a side surface, and a light flux controlling member disposed over the light emitting element to control a distribution of light to be emitted from the light emitting element. The light flux controlling member includes a rear surface disposed closer to the substrate, an incidence surface being an inner surface of a recess opening toward the rear surface and receiving light emitted from the light emitting element, and an emission surface emitting at least a part of the light incident through the incidence surface toward an outside. An outer edge portion of the specular reflection area is positioned outside an opening edge portion of the recess.

Abstract translation: 一种发光器件，包括：基板，其中在一个表面上设置镜面反射到达光的镜面反射区域，设置在基板上的发光元件至少从侧面发光;以及光通量控制部件，其设置在 所述发光元件用于控制从所述发光元件发射的光的分布。 光束控制构件包括靠近基板设置的后表面，入射表面是朝向后表面的凹部开口的内表面，并且接收从发光元件发射的光，以及发射表面的至少一部分 光通过入射面入射到外面。 镜面反射区域的外缘部位于凹部的开口边缘部的外侧。

公开(公告)号：US20180188608A1

公开(公告)日：2018-07-05

申请号：US15738252

申请日：2016-06-22

Applicant: Enplas Corporation

Inventor： Yuki FUJII ,  Yu KAMIJO

IPC: G02F1/1335

CPC classification number: G02F1/133611 ,  G02B3/00 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133607

Abstract: A light flux controlling member that controls the light distribution of light emitted from a light emitting element is provided. This light flux controlling member has: an incidence surface constituted by an inner surface of a first concavity formed on a rear side of the light flux controlling member; an emission surface from which light incident on the incidence surface is emitted to the outside; and a second concavity formed on the rear side. The second concavity has a first inclined surface and a second inclined surface both inclined with respect to an imaginary straight line perpendicular to a central axis. The second inclined surface is formed in a region closer to the central axis than the first inclined surface. The first inclined surface is inclined at an angle reflecting at least part of incident light at the incidence surface and then Fresnel reflected at the emission surface.