Flame simulating device
AssigneeHarry Lee Wainwright
InventorHarry Lee Wainwright
Life of this patent
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Abstract
A flame simulating device includes a substantially translucent shell having a hollow interior, a plurality of colored light sources, positioned within the hollow interior of said shell and a light source driving device for selectively activating each of said plurality of light sources. Each of the light sources are alternately and individually activated to have active periods and such that the surface of said shell is illuminated to produce an animated flame effect. In one example implementation, yellow, orange and red LEDs are positioned at varying heights within the flame-shaped shell and activated on and off in a sequence that follows a set of color transition rules in order to provide a close simulation of the flickering of a flame. During their active periods, LEDs are blinked on and off to conserve power.
Claims12
A flame simulating device comprising:
- (a) a substantially translucent shell having a hollow interior and a directional axis;
- (b) a plurality of colored light sources, adapted to be positioned within the hollow interior of said shell, wherein said light sources include a first light source emitting light having a first frequency, a second light source emitting light having a second frequency and a third light source emitting light having a third frequency and wherein said third frequency is greater than said second frequency and said second frequency is greater than said first frequency;
- (c) a light source driving device for selectively activating said first, second and third light sources according to the following transition rules:
- i. if the first light source is active then activate the second light source next;
- ii. if the second light source is active then activate either the first light source or the third light source next;
- and
- iii. if the third light source is active then activate the second light source next;
- (d) each of said first, second and third light sources being sequentially activated such that the surface of said shell is illuminated and produces an animated flame effect.
Dependencies are inferred from the claim text.