Surface illumination fixture and surface illumination device

Provided is a surface illumination fixture which uses a point light source having strong directivity. A surface illumination fixture (3) provided with an illumination fixture main body (41) and a surface illumination light-source device (6) which comprises a plurality of point light sources (36) hav...

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Hauptverfasser: SATO, HIROYASU, SATO, RIHITO, SATO, EIICHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Provided is a surface illumination fixture which uses a point light source having strong directivity. A surface illumination fixture (3) provided with an illumination fixture main body (41) and a surface illumination light-source device (6) which comprises a plurality of point light sources (36) having strong directivity and which converts light emitted from the point light sources to surface illumination, wherein the surface illumination light-source device (6) is formed from a casing (30) and a light-guide reflection plate. The casing (30) comprises: a flat plate part (35) that is used to attach the surface illumination light-source device to the illumination fixture main body; and lateral plate parts that are provided in an upright manner from the flat plate part. The casing (30) has an opening at a surface opposite to the flat plate part, and the light-guide reflection plate covers the opening. The flat plate part (35), the lateral plate parts (32, 33), and the light-guide reflection plate (40) are formed by members having high light reflectance and low light transmittance. The light reflectance of the light-guide reflection plate (40) decreases and the light transmittance of the light-guide reflection plate (40) increases as the distance between the light-guide reflection plate (40) and the point light sources (36) increases. The illumination fixture main body (41) is provided with an attachment means for attachment to a ceiling or a wall surface.