LUMINAIRE

• Main Authors: KANAYAMA YOSHIHIKO, FUJITA MASARU, MOCHIDA YOSHIO, KIKUCHI HARUSHIGE
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2014
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

PROBLEM TO BE SOLVED: To provide an optical component capable of suppressing positional deviation between an LED and a light guide plate incident surface, achieving stable optical characteristics and emitting light not only on one side but also on both sides of the light guide plate, with respect to the LED.SOLUTION: A luminaire includes an LED light source and a light guide plate. The light guide plate includes: a light incident part for taking the light from the LED light source into the inside of the light guide plate; a first bent part for bending first light taken in from the light incident part to the central direction of the luminaire; a second bent part for bending second light taken from the light incident part into the side surface direction of the luminaire; and a first light emitting part adjacent to the first bent part and emitting the first light. In the LED illumination device, the first bent part and the second bent part are branched from the light incident part. 【課題】ＬＥＤと導光板入光面の位置ズレを抑制し、安定した光学特性を実現するとともに、ＬＥＤに対して、導光板の片側だけでなく両側を発光させることができる光学部品を提供する。【解決手段】ＬＥＤ光源と導光板とを含む照明器具であり、導光板は、ＬＥＤ光源からの光を導光板の内部に取り込む入光部と、入光部から取り込まれた第１光を照明器具の中心の方向へ曲げる第１曲げ部と、入光部から取り込まれた第２光を前記照明器具の側面の方向へ曲げる第２曲げ部と、第１曲げ部に隣接し、第１光を放出する第１発光部と、を有し入光部から第１曲げ部と第２曲げ部とが分かれることを特徴とするＬＥＤ照明装置を用いる。【選択図】図１