FIELD: electricity.
SUBSTANCE: illumination device comprises a metal element 1, light-emitting device 2, on-off switch 3, low-voltage source 4 (accumulator-based), resistor 5, the first and second diodes 6, 7. An anode of the first diode 6 and a cathode of the second diode 7 are jointed and connected to the metal element 1. The metal element 1 should be rather made of tin with the surface area of at least 20 square centimetres. Additional charging of accumulators for a low-voltage source 4 feeding the light-emitting device 2 is made by energy generated during the rectification of electric oscillations occurring as a result of the heat motion of the metal element 1 particles.
EFFECT: development of a universal mobile portable and durable energy-saving illumination device with a long-term continuous operation.
5 cl, 1 dwg
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