FIELD: power engineering.
SUBSTANCE: planar lightguide comprises two optical wedges installed with their similar working faces adjacently and with a gap relative to each other and a light-deflecting element. At the same time the gap between wedges is filled with optical medium, and the light-deflecting element may be arranged above the light-perceiving working face of the first optical wedge, under the working face of the second optical wedge and also in the gap between the wedges. Depending on the type of the device (converter or source of light), arranged on bases of wedges, the invention may be used accordingly both as a concentrator and also as a light diffuser.
EFFECT: high coefficient of solar energy concentration and item manufacturability.
5 cl, 2 dwg
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