Lighting device having cross-fade and method thereof

A lighting device comprising:

• a plurality of lighting sources comprising:
• a first lighting source, wherein said first lighting source emits light in a first illumination pattern;
• and
• a second lighting source, wherein said second lighting source emits light in a second illumination pattern that is different than said first illumination pattern, and said first and second illumination patterns at least partially overlap to yield a third illumination pattern;
• and
• a controller for controlling first and second intensities of said first and second illumination patterns, respectively, with respect to one another, wherein said third illumination pattern is altered when said controller alters said first and second intensities;
• and,
• wherein said controller increases said intensity of both said first and second lighting sources when said controller is controlling said first and second electrical powers supplied to said first and second lighting sources at a minimum and a maximum of a cross-fade spectrum.

A lighting device comprising:

• a plurality of lighting sources comprising:
• a first lighting source, wherein said first lighting source emits light in a first illumination pattern;
• and
• a second lighting source, wherein said second lighting source emits light in a second illumination pattern that is different than said first illumination pattern, and said first and second illumination patterns at least partially overlap to yield a third illumination pattern;
• and
• a controller for controlling first and second intensities of said first and second illumination patterns, respectively, with respect to one another, wherein said third illumination pattern is altered when said controller alters said first and second intensities;
• and
• wherein said controller cross-fades said first and second illumination patterns of said first and second lighting sources with respect to a plurality of cross fading levels and dims said first and second lighting sources with respect to a plurality of dimming levels, such that said selected cross-fading level is maintained when altering said dimming levels and said selected dimming level is maintained when altering said cross-fading levels.

A lighting device comprising:

• a plurality of lighting sources comprising:
• a flood lighting source configured to emit light in a flood illumination pattern;
• and
• a spot lighting source configured to emit light in a spot illumination pattern;
• and
• a controller for controlling first and second electrical powers supplied to said flood and spot lighting sources, respectively, to alter the intensities thereof, such that an intensity of light emitted from said flood and spot lighting sources is altered substantially proportionally with respect to one another, wherein said first electrical power supplied to said flood lighting source is increased by a substantially equal amount with respect to a decrease in said second electrical power supplied to said spot lighting source.

A method of cross-fading illumination patterns of light emitted by a plurality of light sources, said method comprising the steps of:

• emitting light at a first intensity from a first lighting source;
• emitting light at a second intensity from a second lighting source;
• illuminating a target with said emitted light at said first and second intensities;
• and
• cross-fading said first and second lighting sources, wherein said cross-fading comprises altering said first and second intensities with respect to one another, such that when said first intensity increases, said second intensity decreases, and when said first intensity decreases, said second intensity increases.