LED LAMP WITH REMOTE CONTROL DEVICE

• US 20090097244A1
• Filed: 10/10/2008
• Published: 04/16/2009
• Est. Priority Date: 10/12/2007
• Status: Active Grant

• Current Assignee: Foxconn Technology Co., Ltd.
• Original Assignee: Foxconn Technology Co., Ltd.
• Inventors: Jan, Shun-Yuan, Lan, Hai, Huang, Chung-Yuan
• Granted Patent: US 8,002,440 B2
• Time in Patent Office: Days
• US Class Current: 362/234
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/0457 the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/12 using optical feedback
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/175 by remote control
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A method for controlling a remote LED lamp includes: using a memory unit (452) to record a standard value for indicating a normal environmental brightness and a reference value for indicating a normal LED brightness; using a first sensor (41) to detect real-time brightness of the environmental light and transmit a signal (31) indicating the real-time brightness to the memory unit; using the memory unit to compare the signal with the standard value to obtain a result; using a driving unit (451) to control the LED light lamp to be turned on/off according to the result.

Claims

1. An LED lamp comprising:

a light source comprising a plurality of LEDs; and

a control unit comprising;

a first sensor for detecting brightness of an environmental light;

a second sensor for detecting a working status of the light source; and

a memory unit electrically connecting with the first and second sensors and generating signals corresponding to the detections of the first and second sensors;

a driving unit electrically connecting with the light source to control the light source to be turned on/off according to the signal of the memory unit generated corresponding to the detection of the first sensor; and

a communication unit electrically connecting the memory unit with a long-distance control center to send the signal of the memory unit generated corresponding to the detection of the second sensor for indicating the working status of the light source at the long-distance control center.

2. The LED lamp as claimed in claim 1, wherein the first sensor is located in a position out of lighting range of the light source.

3. The LED lamp as claimed in claim 1, wherein the second sensor is located within the lighting range of the light source.

4. The LED lamp as claimed in claim 1, wherein the second sensor is used to detect brightness, lighting time, and flicker of the light source.

5. The LED lamp as claimed in claim 1, wherein a measured result of the detection of the second sensor is corrected in the memory unit by a reference to the first sensor.

6. The LED lamp as claimed in claim 1, wherein the control unit is connected with the long-distance control center by wires.

7. The LED lamp as claimed in claim 1, further comprising a heat sink, the light source and the control unit are arranged on the heat sink.

8. The LED lamp as claimed in claim 7, wherein the light source is located on a front side of the heat sink, and the first sensor is located on a rear side of the heat sink.

9. An LED lamp comprising:

a light source comprising a plurality of LEDs;

a control unit comprising first and second sensors and a control circuit, the first sensor being for detecting brightness of an environmental light, the second sensor being for detecting a working status of the light source, the control circuit being for receiving signals from the sensors corresponding to the detections and controlling the light source according to the signals.

10. The LED lamp as claimed in claim 9 further comprising a heat sink, wherein the light source is located on a front side of the heat sink, and the first sensor is located on a rear side of the heat sink.

11. A method for controlling a remote LED lamp comprising:

using a memory unit to record a standard value for indicating a normal environmental brightness and a reference value for indicating a normal LED brightness;

using a first sensor to detect real-time brightness of the environmental light and transmitting a signal indicating the real-time brightness to the memory unit;

using the memory unit to compare the signal with the standard value to obtain a result;

using a driving unit to control the LED light lamp to be turned on/off according to the result.

12. The method for controlling a remote LED lamp as claimed in claim 11 further comprising using a second sensor to detect a working status of the light source.

13. The method for controlling a remote LED lamp as claimed in claim 12 further comprising using the first sensor as a reference to correct a measured result of the detection of the second sensor, the correction being performed by the memory unit.

14. The method for controlling a remote LED lamp as claimed in claim 12 further comprising using a communicating unit to transmit signals according to the measured result of the second sensor from the memory unit to a long-distance center.