| LEDTECH ELECTRONICS Patent applications |
| Patent application number | Title | Published |
|---|
| 20100220476 | LED LIGHT TUBE - A LED light tube is revealed. The LED light tube includes a tube-shaped heat dissipation base, a printed circuit board and a light cover. The light cover includes an outer light emitting layer, an inner light emitting layer and a hollow part formed by a gap between the inner light emitting layer and the outer light emitting layer. The inner light emitting layer of the light cover presses on the printed circuit board in order to fix the printed circuit board on the tube-shaped heat dissipation base so that there is no need to use any other components for fixing the printed circuit board on the tube-shaped heat dissipation base. | 09-02-2010 |
| 20100201270 | LIGHT EMITTING DIODE LIGHT TUBE AND AC SWITCHING POWER SUPPLY THEREOF - The present invention provides a light emitting diode light tube with two ends respectively having a pair of electrode pins for receiving a first and second AC input voltages. The light tube includes an AC switching power supply including a first input rectifier/filter circuit rectifying/filtering the first AC input voltage to generate a first rectified/filtered voltage, and a power conversion circuit coupled to the first input rectifier/filter circuit, and having a second input rectifier/filter circuit rectifying/filtering the second AC input voltage to generate a second rectified/filtered voltage, wherein the power conversion circuit generates a output voltage in response to the first and second rectified/filtered voltages. The AC switching power supply provides a constant output voltage and current to the LED, which avoids flicker in the LED light tube. | 08-12-2010 |
| 20100110678 | LIGHT-EMITTING DIODE TUBE STRUCTURE - The present invention relates to a light-emitting diode (LED) tube structure, which comprises a lamp cover and a light-emitting assembly. The light-emitting assembly is disposed under the lamp cover; and a condenser film or a diffuser film is disposed above the light-emitting assembly. By using the condenser film or the diffuser film, the light emitted by LEDs can be condensed or diffused for using. | 05-06-2010 |
