FIELD: lighting engineering.
SUBSTANCE: invention relates to lighting engineering. Optical element contains plate (100) and plurality of collimating devices (104). Optical element is intended for installation in front of light source comprising light-emitting surface (106), wherein optical element is made with possibility to obtain zenith lamp appearance. Plate (100) is arranged in parallel to light-emitting surface (106) and made transparent, wherein one of its sides has reflecting surface (102), which is placed in parallel to light-emitting surface (106). Reflecting surface (102) is light-reflecting in specified spectral range for producing blue light radiation. Plurality of collimating devices collimate light portion received from light source, for collimated light beam 112 production in specific direction. Each of collimating devices has one of plate (100) plurality of holes (104).
EFFECT: technical result is higher efficiency of illumination.
11 cl, 7 dwg
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