Kaleidoscopic light string
A light string can include a power cord adapted to electrically connect to an external power source, and a plurality of light bulbs electrically connected to the power cord in series. At least one of the light bulbs can include: a lamp base defining a first inner surface, and having a first beam-splitter formed on the first inner surface; a circuit board mounted in the lamp base, the circuit board electrically connected to the power cord; a plurality of light-emitting diode (LED) units electrically mounted on the circuit board; a light shade capping the lamp base, the light shade defining a second inner surface and having a second beam-splitter formed on the second inner surface, wherein the first beam-splitter and second beam-splitter are contiguous; and a refractive lens mounted in the lamp base between the LED units and the first beam splitter.
1. A light string, comprising:
a power cord adapted to electrically connect to an external power source; and
a plurality of light bulbs electrically connected to the power cord in series, at least one of the light bulbs comprising:
a lamp base defining a first inner surface, and having a first beam-splitter formed on the first inner surface;
a circuit board mounted in the lamp base, the circuit board electrically connected to the power cord;
a plurality of light-emitting diode (LED) units electrically mounted on the circuit board;
a light shade capping the lamp base, the light shade defining a second inner surface, and having a second beam-splitter formed on the second inner surface, wherein the first beam-splitter and second beam-splitter are directed toward one another and are contiguous; and
a refractive lens mounted in the lamp base between the LED units and the first beam splitter;
wherein the refractive lens defines a front surface facing away from the LED units and toward the second beam-splitter, the front surface having multiple refractive faces.
2. The light string of claim 1 , wherein the circuit board includes a control unit adapted to control the plurality of LED units.
3. The light string of claim 2 , wherein the control unit is adapted to control the LED units to generate kaleidoscopic lighting effects.
4. The light string of claim 2 , wherein the control unit is adapted to control the LED units to sequentially emit different color light beams.
5. The light string of claim 1 , wherein each of the LED units comprises a three-color LED unit.
6. The light string of claim 5 , wherein each of the LED units comprises a RGB LED unit.
7. The light string of claim 1 , wherein the LED units are arranged in circles.
8. The light string of claim 1 , wherein the first beam-splitter comprises a plurality of convex lenses arranged at different angles.
9. The light string of claim 1 , wherein the second beam-splitter comprises a plurality of convex lenses arranged at different angles.
10. The light string of claim 1 , wherein:
the first beam-splitter comprises a plurality of convex lenses; and
the second beam-splitter comprises a plurality of convex lenses.
11. The light string of claim 1 , wherein the refractive lens mixes light beams emitted by the LED units.
12. The light string of claim 1 , wherein the LED units are arranged into groups of LED units arranged in circles.
13. The light string of claim 12 , wherein the LED units comprise multi-color LED units.
14. The light string of claim 13 , wherein the circuit board includes a control unit adapted to control the plurality of LED units to sequentially emit different color light beams.