Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020071281 - LIGHT FLUX CONTROLLING MEMBER, LIGHT-EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY DEVICE

Publication Number WO/2020/071281
Publication Date 09.04.2020
International Application No. PCT/JP2019/038214
International Filing Date 27.09.2019
IPC
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
F21S 2/00 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/-F21S10/113
F21V 5/00 2018.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
5Refractors for light sources
G02B 5/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
G02B 5/02 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
CPC
F21S 2/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
F21V 5/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
5Refractors for light sources
G02B 5/00
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
G02B 5/02
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5Optical elements other than lenses
02Diffusing elements; Afocal elements
Applicants
  • 株式会社エンプラス ENPLAS CORPORATION [JP]/[JP]
Inventors
  • 平加 健介 HIRAKA, Kensuke
Agents
  • 特許業務法人鷲田国際特許事務所 WASHIDA & ASSOCIATES
Priority Data
2018-18648801.10.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIGHT FLUX CONTROLLING MEMBER, LIGHT-EMITTING DEVICE, SURFACE LIGHT SOURCE DEVICE, AND DISPLAY DEVICE
(FR) ÉLÉMENT DE COMMANDE DE FLUX LUMINEUX, DISPOSITIF ÉLECTROLUMINESCENT, DISPOSITIF SOURCE DE LUMIÈRE DE SURFACE ET DISPOSITIF D'AFFICHAGE
(JA) 光束制御部材、発光装置、面光源装置および表示装置
Abstract
(EN)
The light flux controlling member according to the present invention comprises: an incident surface which is disposed on the back side so as to intersect with a central axis of a light flux controlling member, and on which a part of the light emitted from a light-emitting element falls; a reflection portion arranged on the back side so as to surround the incident surface; a total reflection surface that is disposed on the front side so as to intersect with the central axis, and reflects sidewise the light incident on the incident surface; and an emission surface that is disposed so as to surround the central axis and the total reflection surface and emits light reflected by the total reflection surface. The reflection portion has a plurality of ridges for reflecting light that has reached the reflection portion after Fresnel reflection on the emission surface. The plurality of ridges have a first reflection surface, a second reflection surface, and a ridge line that is an intersection line between the first reflection surface and the second reflection surface.
(FR)
L'élément de commande de flux lumineux selon la présente invention comprend : une surface incidente qui est disposée sur le côté arrière de façon à croiser un axe central d'un élément de commande de flux lumineux, et sur laquelle une partie de la lumière émise par un élément électroluminescent tombe ; une partie de réflexion disposée sur le côté arrière de façon à entourer la surface incidente ; une surface de réflexion totale qui est disposée sur le côté avant de façon à croiser l'axe central, et réfléchit latéralement la lumière incidente sur la surface incidente ; et une surface d'émission qui est disposée de manière à entourer l'axe central et la surface de réflexion totale et émet de la lumière réfléchie par la surface de réflexion totale. La partie de réflexion comporte une pluralité de crêtes pour réfléchir la lumière qui a atteint la partie de réflexion après une réflexion de Fresnel sur la surface d'émission. La pluralité de crêtes a une première surface de réflexion, une seconde surface de réflexion, et une ligne de crête qui est une ligne d'intersection entre la première surface de réflexion et la seconde surface de réflexion.
(JA)
本発明に係る光束制御部材は、光束制御部材の中心軸と交わるように裏側に配置された、発光素子から出射された光の一部を入射させる入射面と、入射面を取り囲むように裏側に配置された反射部と、中心軸と交わるように表側に配置された、入射面で入射した光を側方に向かって反射させる全反射面と、中心軸および全反射面を取り囲むように配置された、全反射面で反射した光を出射する出射面と、を有する。反射部は、出射面でフレネル反射して反射部に到達した光を反射させるための複数の凸条を有する。複数の凸条は、第1反射面、第2反射面および第1反射面と第2反射面との交線である稜線を有する。
Also published as
Latest bibliographic data on file with the International Bureau