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    • 4. 发明公开
    • LIGHTING DEVICE
    • EP4368874A1
    • 2024-05-15
    • EP22861032.5
    • 2022-07-25
    • Dai-Ichi Shomei Co., Ltd
    • IINO, Kohhei
    • F21S2/00F21V7/09F21V11/10F21V14/08F21Y113/10F21Y115/10
    • F21Y2115/1020160801F21V11/10F21S2/00F21Y2113/1020160801F21V7/09F21V14/08
    • There is provided a lighting device that emits light, the lighting device (100) comprising: a lighting device cover (10) having an emission opening; a light emitting element (20) fixed to the lighting device cover (10), the light emitting element (20) configured to emit the light along a lighting direction from the emission opening toward one side of the lighting device (100); a diffusion plate (30) fixed to the lighting device cover (10) so as to be disposed on one side with respect to the light emitting element (20), the diffusion plate (30) configured to diffuse the light emitted from the light emitting element (20); a shutter (40) fixed to the lighting device cover (10) so as to be disposed on one side with respect to the diffusion plate (30) , the shutter (40)configured to change a lighting range of the light diffused by the diffusion plate(30); and a light reflective member (50) fixed to the lighting device cover (10) so as to be disposed on one side with respect to the shutter (40), the light reflective member (50) having a resin interface (52) , the resin interface (52) configured to totally reflect a part of the light having passed through the shutter (40) and then to emit the part of the light along the lighting direction, wherein the light reflective member (50) includes, on one side, a transmission interface (52) through which the light is allowed to pass, wherein the resin interface (52) includes: an inner protruding resin interface (52a) formed so as to surround an outer periphery of the emission opening and protruding toward another side, and an outer protruding resin interface (52b) formed so as to surround an outer periphery of the inner protruding resin interface and protruding toward another side.