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1.发明申请公开(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.
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公开(公告)号：US20170322352A1
公开(公告)日：2017-11-09
申请号：US15526589
申请日：2015-10-29
Applicant: Enplas Corporation
Inventor： Yuki FUJII
Abstract: This reflective member comprises a rectangular bottom surface, four inclined planes joined to the four edges of the bottom surface and whereof each is inclined with respect to the bottom surface so as to slope up from the bottom surface, and four planar corner portion inclined planes, whereof each is disposed in such a manner as to link two adjacent inclined planes.
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公开(公告)号：US20230266518A1
公开(公告)日：2023-08-24
申请号：US18106774
申请日：2023-02-07
Applicant: ENPLAS CORPORATION
Inventor： Yuki FUJII
IPC: F21V8/00
CPC classification number: G02B6/0073 , G02B6/0031 , G02B6/0025 , G02B6/003
Abstract: A backlight comprises a plurality of light sources mounted on a mounting substrate in rows; lenses respectively arranged on the light sources; and a reflective sheet disposed on the mounting substrate and provided with through-holes through which the light sources protrude, wherein a first light source spacing of the plurality of light sources in a row direction is set to Px, an inter-row spacing of the plurality of light sources in other direction orthogonal to the row direction is set to Py, a first maximum length of each of the through-holes in the reflective sheet in the row direction is set to a, an inter-row maximum length of each of the through-holes in the reflective sheet in the other direction is set to b, the reflectivity of the reflective sheet is set to α and the reflectivity of the mounting substrate is set to β, the following mathematical formula 1 is satisfied if Py>Px:
α
(
Px
-
a
)
+
β
a
α
(
Py
-
b
)
+
β
b
·
Py
Px
>
0.9
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4.发明申请公开(公告)号：US20170212386A1
公开(公告)日：2017-07-27
申请号：US15409832
申请日：2017-01-19
Applicant: Enplas Corporation
Inventor： Yuki FUJII
CPC classification number: G02F1/133611 , F21V3/02 , F21V5/04 , F21V7/0091 , F21V7/048 , F21V13/04 , F21Y2105/16 , F21Y2115/10 , G02F1/133603 , G02F1/133606 , G02F2001/133607
Abstract: A light flux controlling member includes an incidence surface, an emission surface, and an annular groove part. The annular groove part includes a first internal surface and a second internal surface. The second internal surface protrudes from a virtual line connecting an outer and inner end portions toward an opening side of the annular groove part; and, when an angle on the annular groove part side of two angles between a tangent to an arbitrary point of the second internal surface and the central axis is an inclination angle at the arbitrary point of the second internal surface in the cross section including the central axis, an inclination angle at the inner end portion is smaller than an inclination angle at the outer end portion, and an inclination angle of the second internal surface increases as a distance from the central axis increases.
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公开(公告)号：US20250076708A1
公开(公告)日：2025-03-06
申请号：US18817623
申请日：2024-08-28
Applicant: Enplas Corporation
Inventor： Takuro MOMOI , Yuki FUJII
IPC: G02F1/1335 , G02F1/13357
Abstract: A light emitting device of the present invention includes: a substrate; a light emitting element; a light flux controlling member including a recess, a first reflecting surface, and an emission surface, the recess being configured to transmit light emitted from the light emitting element, the first reflecting surface being configured to reflect a part of light transmitted through the recess in a direction that is substantially perpendicular to a central axis of the light emitting element and is away from the central axis, the emission surface being configured to emit to outside another part of the light emitted from the light emitting element and light reflected at the first reflecting surface; and a light transmissive resin provided in the recess to seal the light emitting element and bond the light flux controlling member to the substrate and the light emitting element.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220397797A1
公开(公告)日：2022-12-15
申请号：US17532176
申请日：2021-11-22
Applicant: Enplas Corporation
Inventor： Yuki FUJII
IPC: G02F1/1335 , G02F1/13357
Abstract: A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that θ2 is smaller than θ1, where L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface of the light-emitting element and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.
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7.发明申请公开(公告)号：US20220397796A1
公开(公告)日：2022-12-15
申请号：US17346441
申请日：2021-06-14
Applicant: Enplas Corporation
Inventor： Yuki FUJII
IPC: G02F1/1335 , G02F1/13357
Abstract: A light flux controlling member includes a plurality of incident units and an emission unit. The incident unit includes an incidence surface and a reflection surface. At least a part of a side surface of the light flux controlling member is configured such that η2 is smaller than η1, where, in plan view, L is a line connecting a gravity center G1 of the light flux controlling member and a center G2 of the reflection surface, L1 is a line connecting a center P1 of a light-emitting surface and a point P2 on the side surface where light emitted from the center P1, L2 is a line along light emitted from the point P2 to outside, θ1 is an angle between L and L1, and θ2 is an angle between L2 and a line L′ that is parallel to L.
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公开(公告)号：US20220011633A1
公开(公告)日：2022-01-13
申请号：US17371550
申请日：2021-07-09
Applicant: Enplas Corporation
Inventor： Yuki FUJII , Takao MIYOSHI , Hiroshi TAKATORI , Takuro MOMOI
IPC: G02F1/1335 , G02F1/13357
Abstract: A light flux controlling member includes n incidence units for allowing incidence of light emitted from n light emitting elements, respectively; an emission unit disposed between the n incidence units and allowing emission of the light incident on the n incidence units while guiding the light; and a plurality of legs. Each incidence unit includes an incidence surface and a reflection surface reflecting, in a direction along the substrate, the light incident on the incidence surface. The emission unit includes a first emission surface emitting a part of the light from the incidence unit, and a second emission surface disposed so as to face away from the first emission surface and emitting another part of the light from the incidence unit. Each leg is disposed at a position satisfying a predetermined condition.
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9.发明申请公开(公告)号：US20160281957A1
公开(公告)日：2016-09-29
申请号：US15079950
申请日：2016-03-24
Applicant: Enplas Corporation
Inventor： Yuki FUJII
IPC: F21V5/04
CPC classification number: F21V5/04 , F21V5/00 , F21V5/045 , G02B19/0061 , H01L33/58
Abstract: A light emitting device includes a light emitting element emitting light from a top surface and a side surface, and a light flux controlling member controlling distribution of light emitted therefrom. The light flux controlling member includes a rear surface, an incidence surface, and an emission surface. When opening diameter of recess is φ, maximum length of the light emitting element in plan view is L, and thickness of the light emitting element is t, diameter φ is equal to or more than twice a distance from a point where illuminance of light emitted from the side surface thereof to reach the substrate is maximum in illuminance distribution on the substrate to central axis of the light flux controlling member, and is less than “L+12t.”
Abstract translation: 发光器件包括从顶表面和侧表面发射光的发光元件和控制从其发射的光的分布的光束控制部件。 光束控制构件包括后表面，入射表面和发射表面。 当凹部的开口直径为φ时，发光元件在平面图中的最大长度为L，发光元件的厚度为t，直径φ等于或大于从发出的光的照度的距离的两倍 从基板的侧面到达基板的光束控制部件的中心轴的基板的照度分布最大，小于“L + 12t”。
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公开(公告)号：US20220302359A1
公开(公告)日：2022-09-22
申请号：US17695026
申请日：2022-03-15
Applicant: Enplas Corporation
Inventor： Yuki FUJII
Abstract: A light emitting device according to an embodiment of the present invention includes a plurality of light emitting elements disposed on a substrate, and a light flux controlling member that is for controlling a distribution of light emitted from the plurality of light emitting elements, and disposed on the plurality of light emitting elements. The light emitting element is disposed in such a way that L1 is longer than L2 when the light flux controlling member is viewed in plan view, where the L1 is a length from the center of gravity of the light flux controlling member to the optical axis of the light emitting element, and the L2 is a length from the center of gravity of the light flux controlling member to the central axis of the incidence unit corresponding to this light emitting element.
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