Abstract: The invention provides improved flame-simulations via electronic flame simulation. In one embodiment, a microprocessor-based electronic artificial flame uses multiple LEDs that are controlled to give the appearance of flame motion (or “dance”). In one embodiment, the use of a white LED or LEDs to whiten the top of the flame and a blue LED or multiple blue LEDs to give a hint of blue at the bottom of the flame greatly improves the realism of the resulting simulated flame.

Abstract: Electronic lighting devices that simulate a realistic flame are disclosed. The preferred embodiment has a plurality of lighting elements in a plurality of colors which are modulated in intensity by a control circuit with a stored program. The control program includes stored amplitude waveforms for the generation of a realistic flame simulation. The program further contains random elements to keep the flame constantly changing. The control circuit has built in power management functions that can control the mean intensity of the simulated flame based on some power management budget with the ability to measure the charge/discharge duration of the power source, when used with a rechargeable power source. The currents to the individual lighting elements are selectable from a set of discrete quantization values. Tables of amplitude modulated time waveforms are stored in the microprocessor memory, from which the real time control data streams for the individual lighting elements are synthesized.