FIELD: electrical engineering.
SUBSTANCE: lighting device 12 consists of a body 14 with a light source 17 and optical component 15a oriented to the light source 17. The optical component 15a has DA part overlapped with the light source, overlapped with LA area of the light source layout in the body 14 and DN part non-overlapped with the light source, overlapped with LN area of the light source non-layout where the light source 17 is not configured. The DA part overlapped with the light source has surface oriented to the light source 17, at that this surface has light reflectance bigger than light reflectance of the DN part non-overlapped with the light source. The DA part overlapped with the light source includes LR area with low light reflectance; this area is oriented to the light source 17, at that this surface has light reflectance less than the same coefficient for the area adjoining the DA part overlapped with the light source.
EFFECT: improvement of light intensity in the central area of the emitting surface.
18 cl, 22 dwg
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Authors
Dates
2013-07-10—Published
2010-05-17—Filed