| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has power transformer, primary winding, controllable key, incandescent lamp, voltage gage, rectifier, DC key, amplifier, unit for controlling intensity of illumination, comparison unit, saw-shaped voltage oscillator, regulating resistor, control impulse shaper, time relay, emitter repeater, RC-circuit, rectangular impulse shaper, additional secondary winding, the second secondary winding, the second incandescent lamp and the second controllable key, lamp operation mode switch. EFFECT: high reliability of operation; enable switch of burned lamp due to two light canals of illumination device being available. 2 cl
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