LIGHTING DEVICE

• Main Authors: FUWA TAKESHI, KATO RYO, TAKAGI HIROAKI, MARUYAMA TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 13.02.2020
• Subjects: BLASTING; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a low-cost lighting device with a wide toning range and a wide range of dimming for a lighting device that uses an LED as a light source.SOLUTION: A lighting device according to the present invention uses a first light emitting element group (10), a second light emitting element group (20), a third light emitting element group (30), and a fourth light emitting element group (40) having different light colors, and turns off the third light emitting element group in a mode in which the first light emitting element group is turned on, and performs the control for turning off the first light emitting element group in a mode in which the third light emitting element group is turned on.SELECTED DRAWING: Figure 31 【課題】LEDを光源とする照明装置において、低コストかつ調色範囲と調光範囲が広い照明装置を提供する。【解決手段】本発明に係る照明装置は、光色の異なる第一の発光素子群（10)と第二の発光素子群(20)と第三の発光素子群(30)と第四の発光素子群（40）を用い、前記第一の発光素子群が点灯するモードでは前記第三の発光素子群は不点灯し、前記第三の発光素子群が点灯するモードでは前記第一の発光素子群は不点灯する制御を行なう。【選択図】図３１