FIELD: electricity.
SUBSTANCE: invention relates to the field of lighting equipment. Lighting device (12) is equipped with a number of optical source cards (20) with variety of point optical sources (17) installed at them. Average colour tone of point optical sources (17) (POS) at each card (20) is in equivalent colour range defined by the square, and each opposite side of two square sides has coordinate length in the axis X equal to 0.015, and each opposite side of two square sides has coordinate length in the axis Y equal to 0.015 at the colour space chromaticity chart of International Commission on Illumination as of 1931. POS are categorized into three colour ranges defined by squares, at that each side of the square has a length of 0.015. At that the second and third ranges adjoin the first one that includes the above equivalent colour range. POS cards include the first cards with installed point optical sources in the first and second colour ranges, and the second cards with installed point optical sources in the first and third colour ranges. The first and second POS cards are placed in sequence.
EFFECT: providing total emission of practically uniform colour.
26 cl, 17 dwg
Authors
Dates
2014-04-10—Published
2010-06-04—Filed