초록

A system for remotely controlling multiple light strings to achieve a wide variety of visual effects including, on the same string, variations in color, blink rate, and brightness.

대표청구항 ▼

An ornamental lighting system comprising: a first light string having first and second terminals and a plurality of light emitting diodes including a first group connected in parallel between said first and second terminals and a second group connected in parallel with said first group but having an

An ornamental lighting system comprising: a first light string having first and second terminals and a plurality of light emitting diodes including a first group connected in parallel between said first and second terminals and a second group connected in parallel with said first group but having an opposite polarity orientation; switch means having first and second main terminals and operable either in an on-state to bidirectionally conduct between said first and second main terminals or an off-state to block conduction between said first and second main terminals; source means for supplying a source voltage alternating at a frequency F1; means connecting said source means in series with said light string first and second terminals and said switch means first and second main terminals; means for generating successive clock pulses at a defined frequency F2; and means responsive to said clock pulses for periodically switching said switch means to said on-state to conduct current through said first group of light emitting diodes during a positive half cycle of said source voltage and through said second group of light emitting diodes during a negative half cycle of said source voltage whereby said first and second groups can be energized at different intensities.