LUMINAIRE AND ILLUMINATION SYSTEM

• Main Authors: FUJII SHUNPEI, HYODO SATOSHI, YAMAUCHI KENTARO, TAKESHITA HIRONORI
• Format: Patent
• Language: English; Japanese
• Published: 18.10.2018
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; BASIC ELECTRIC ELEMENTS; BLASTING; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LABELS OR NAME-PLATES; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS; 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 reduce discomfort generated in showing a changing video on a luminaire.SOLUTION: A luminaire 1 comprises: a housing 10 that has an opening 15; a light source 20 that is provided in the housing 10 and has a plurality of light emitting elements 22; a light diffusion plate 40 that is provided in the opening 15 and transmits and diffuses light emitted from the plurality of light emitting elements 22 to be emitted; and a control part 50 that controls light emission from the light source 20. The control part 50 controls light emission from the plurality of light emitting elements 22 such that a video is shown on the light diffusion plate 40, and when changing the light emission from the plurality of light emitting elements 22, controls the light emission from the light source 20 such that at least one change of a change in the quantity of light emitted from the luminaire 1 and a change in color temperature falls within a predetermined range.SELECTED DRAWING: Figure 3B 【課題】照明装置等において、変化する映像を映し出す際に生じる違和感を抑制する。【解決手段】照明装置１は、開口部１５を有する筐体１０と、筐体１０に設けられ、複数の発光素子２２を有する光源２０と、開口部１５に設けられ、複数の発光素子２２から出射された光を透過及び拡散して出射する光拡散板４０と、光源２０の発光を制御する制御部５０とを備える。制御部５０は、光拡散板４０に映像が映し出されるように複数の発光素子２２の発光を制御し、かつ、複数の発光素子２２の発光を変化させる場合に、照明装置１から出射される光の光量の変化、及び、色温度の変化のうち少なくとも１つの変化が所定範囲内となるように、光源２０の発光を制御する。【選択図】図３Ｂ