LOCAL LIGHTING DEVICE Russian patent published in 2017 - IPC F21S8/00 F21V7/00 F21V7/09 F21V13/04 F21K99/00 G02B17/08 F21V5/04 

FIELD: lighting.

SUBSTANCE: invention relates to lighting engineering. Device (14, 22) includes tubular reflector, having reflecting inner surface (16), which contains first section (15a), having input aperture (17a) and output aperture (17b), larger than said input aperture, and second section (15b) having input aperture (18a) and output aperture (18b), substantially, identical in size, second section (15b) input aperture (18a) is located next to said first section (15a) output aperture (17b); light sources array (1), containing plurality of light sources (2), arranged to emit light into said tubular reflector first section (15a) through said first section (15a) input aperture (17a). Optical focusing element (21) is located between first section (15a) output aperture (17b) and output aperture (18b) of said tubular reflector second section. Said first and second sections, light sources array and optical focusing element are arranged with possibility to form uniformly mixed colors collimated light beam, output through second section (15b) output aperture (18b). Optical axis (19) extends from light sources array (1) to second section (15b) output aperture (18b), wherein first section (15a) has convex shape, visible from optical axis (19).

EFFECT: technical result is enabling possibility of colour mixing in wide operating range, including implementation of out of focus scaling parameters setting, frequently used to produce spots with soft edges.

13 cl, 6 dwg