LIGHTING DEVICE AND LIGHTING SYSTEM

To provide a lighting device that allows a variable irradiation range with an inexpensive configuration without using a lens or reflector plate.SOLUTION: A lighting device (101) changes a relative position of an LED (13) mounted to an LED substrate (14) to a first light emission surface (12a) of a d...

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Bibliographic Details
Main Author OYAMA KAZUYA
Format Patent
LanguageEnglish
Japanese
Published 01.07.2022
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Summary:To provide a lighting device that allows a variable irradiation range with an inexpensive configuration without using a lens or reflector plate.SOLUTION: A lighting device (101) changes a relative position of an LED (13) mounted to an LED substrate (14) to a first light emission surface (12a) of a diffusion cover (12) covering the LED substrate (14) to adjust a light emission area of a second light emission surface (12b).SELECTED DRAWING: Figure 2 【課題】レンズや反射板を使用せず、安価な構成で照射範囲を可変にできる照明装置を実現する。【解決手段】本発明の照明装置(101)は、LED基板(14)に搭載されたLED(13)と、LED基板(14)を覆う拡散カバー(12)の第1光出射面(12a)との相対位置を変化させて、第2光出射面(12b)の光出射面積を調整する。【選択図】図2
Bibliography:Application Number: JP20200211519