LED Replacement Projector Light Source
OwnerTimothy J. Scaleinventor
Life of this patent
Estimating the term…
Abstract
An LED replacement light source for typical flash lamp projector bulbs. The LED source can be configured in the same form factor as the original bulb module. Clusters of LEDs or LEDs in series and parallel can be used to replace the projector lamp module. A varistor or other surge protector can be used to protect the LED array from the initial high voltage firing spike supplied by the power supply. The replacement module can have LEDs mounted on a heat sink with a collimator in front of the LEDs and an optional reflector.
Claims16
A replacement module for an arc lamp projector bulb assembly comprising:
- a plurality of LEDs wired in an array on a heat sink, said array having a positive electrical terminal and a negative electrical terminal;
- a collimator mounted in front of said LEDs;
- a surge connector electrically connected across said positive electrical terminal and said negative electrical terminal;
- wherein, said replacement module fits a projector bulb module form factor.
A replacement module for an arc lamp projector bulb from a light projector assembly comprising:
- a plurality of LEDs wired in an array on a heat sink, said array having a positive electrical terminal and a negative electrical terminal, said array containing either 6 LEDs connected in parallel or 3 groups with 2 LEDs per group connected in series, said groups connected in parallel;
- a collimator mounted in front of said LEDs;
- a surge connector electrically connected across said positive electrical terminal and said negative electrical terminal;
- wherein, said replacement module fits a projector bulb module form factor and said heat sink is cooled by a fan in said light projector.
A method of providing a replacement light source for a projector lamp using an LED array device with a form factor matching that of said projector lamp, said LED array device containing a plurality of LEDs connected in series, parallel or series/parallel with a DC voltage input comprising:
- providing a plurality of series connected, parallel connected or series/parallel connected LEDs mounted on a heat sink, wherein said heat sink can be cooled by a projector fan;
- providing a collimator mounted in front of said plurality of LEDs;
- connecting a surge protector across said DC voltage input;
Dependencies are inferred from the claim text.