LUMINAIRE

• Main Author: FURUYAMA MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: BLASTING; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-LINEAR OPTICS; NON-PORTABLE LIGHTING DEVICES; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a luminaire capable of generating multicolor illumination light using a laser beam with a single wavelength, and capable of improving reliability.SOLUTION: A luminaire comprises: a laser light source 11 configured to emit laser light; a liquid crystal element 13 configured to transmit the laser light from the laser light source 11 and refract the laser light; and a phosphor unit 14 configured to receive the laser light from the liquid crystal element 13 and change the wavelength of the laser light to emit illumination light, and comprising a first phosphor of a first color and a second phosphor of a second color different from the first color. The liquid crystal element 13 is configured to control an angle of the laser light and select one of the first phosphor and the second phosphor.SELECTED DRAWING: Figure 1 【課題】 単一波長のレーザー光を用いて複数色の照明光を発生させることが可能であるとともに、信頼性を向上させることが可能な照明装置を提供する。【解決手段】 照明装置は、レーザー光を発光するレーザー光源１１と、レーザー光源１１からのレーザー光を透過するとともに、レーザー光を屈折させる液晶素子１３と、液晶素子１３からのレーザー光を受け、レーザー光を波長変化して照明光を放射し、第１色の第１蛍光体と、第１色と異なる第２色の第２蛍光体とを含む蛍光体ユニット１４とを含む。液晶素子１３は、レーザー光の角度を制御し、第１蛍光体及び第２蛍光体の１つを選択する。【選択図】 図１