LIGHTING CONTROL SYSTEM AND LED LAMP

• US 20110050120A1
• Filed: 09/01/2009
• Published: 03/03/2011
• Est. Priority Date: 09/01/2009
• Status: Active Grant

• Current Assignee: Hong Kong Applied Science And Technology Research Institute Co., Ltd.
• Original Assignee: Hong Kong Applied Science And Technology Research Institute Co., Ltd.
• Inventors: Leung, Tik Shun, Wu, Kai Chiu, Leung, Chun Kai, Lu, Ming, Li, Kin Cheong
• Granted Patent: US 8,373,360 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H05B 45/00 Circuit arrangements for operating light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light

Abstract

A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp.

Claims

1. A controllable color light emitting diode (LED) lamp comprising:

two or more light emitting elements, a first light emitting element of the two or more light emitting elements configured to emit a first light spectrum and a second light emitting element of the two or more light emitting elements configured to emit a second light spectrum, each of the two or more light emitting elements including an anode and a cathode; and

a positive electrical contact assembly and a negative electrical contact assembly, each of the positive electrical contact assembly and the negative electrical contact assembly including at least a first contact section and a second contact section, each of the first contact sections and the second contact sections are separated by insulating material, wherein the first contact section of the positive electrical contact is electrically connected to the anode of the first light emitting element and the second contact section of the positive electrical contact is electrically connected to the anode of the second light emitting element, and wherein the first contact section of the negative electrical contact is electrically connected to the cathode of the first light emitting element and the second contact section of the negative electrical contact is electrically connected to the cathode of the second light emitting element.

2. The controllable color LED lamp of claim 1, wherein the first and second contact sections and the insulating material of the positive contact assembly are aligned in a rod configuration along a first axis, and the first and second contact sections and the insulating material of the negative contact assembly are aligned in a rod configuration along a second axis, and the insulating material of each contact assembly is abutted by both the first contact section and the second contact section of each contact assembly.

3. The controllable color LED lamp of claim 1, wherein the positive electrical contact assembly has a socket end configured for electrical contact with a lamp socket and a lamp end electrically connected to the two or more light emitting elements, and the negative electrical contact assembly has a socket end configured for electrical contact with a lamp socket and a lamp end electrically connected to the two or more light emitting elements.

4. The controllable color LED lamp of claim 1, further comprising:

a third light emitting element of the two or more light emitting elements configured to emit a third light spectrum, the third light emitting element including an anode and a cathode, and wherein the positive electrical contact assembly and the negative electrical contact assembly each further includes a third contact section separated from the first and second contact sections, wherein the third contact section of the positive electrical contact is electrically connected to the anode of the third light emitting element, and wherein the third contact section of the negative electrical contact is electrically connected to the cathode of the third light emitting element.

5. The controllable color LED lamp of claim 4, wherein the first, second, and third contact sections and the insulating materials of the positive contact assembly are aligned in a rod configuration along a first axis, and the first, second, and third contact sections and the insulating materials of the negative contact assembly are aligned in a rod configuration along a second axis, and a first one of the insulating materials of each contact assembly is abutted by both the first contact section and the second contact section of each contact assembly, and a second one of the insulating materials of each contact assembly is abutted by both the second contact section and the third contact section of each contact assembly.

6. The controllable color LED lamp of claim 4, wherein the positive electrical contact assembly has a socket end configured for electrical contact with a lamp socket and a lamp end electrically connected to the two or more light emitting elements, and the negative electrical contact assembly has a socket end configured for electrical contact with a lamp socket and a lamp end electrically connected to the two or more light emitting elements.

7. The controllable color LED lamp of claim 1, wherein each of the first and second contact sections of the positive and negative contact assemblies are in the form of discrete studs disposed onto a screw type lamp cap made of insulating material.

8. The controllable color LED lamp of claim 7, wherein each of the first contact section and the second contact section includes an outer portion and an inner portion, wherein the outer portion is configured for electrical contact by a lamp socket and the inner portion is electrically connected to one of the two or more light emitting elements.

9. The controllable color LED lamp of claim 7, wherein each of the positive contact and negative contact assemblies further comprise of third contact section, in the form of a discrete stud disposed onto the screw type lamp cap made of insulating material.

10. The controllable color LED lamp of claim 9, wherein the each of the first contact section, the second contact section, and the third contact section of the positive electrical contact is positioned along a first location on the screw type contact, and each of the first contact section, the second contact section, and the third contact section of the negative electrical contact is positioned along a second location on the screw type contact.

11. The controllable color LED lamp of claim 10, wherein the first location is on an opposing side of the lamp from the second location.

12. Alighting control system comprising:

a control unit configured to receive lighting control instructions and transmit lighting control signals to one or more light emitting diode (LED) lamps; and

an LED driver unit configured to provide electric control of one or more LED lamps, the LED driver unit including one or more LED drivers, each of the one or more LED drivers configured to deliver one or more independent light control signals, the LED driver unit further including one or more detection devices configured to detect the presence of a controllable LED lamp electrically coupled to the lighting control system.

13. The lighting control system of claim 12, wherein each of the one or more independent light control signals is configured to control one light emitting element in a multi spectrum LED, wherein a first one of the one or more independent light control signals is configured to control a first spectrum LED, a second one of the one or more independent light control signals is configured to control a second spectrum LED, and third one of the one or more independent light control signals is configured to control a third spectrum LED.

14. The lighting control system of claim 12, further comprising one or more LED lamp sockets, each of the one or more LED lamp sockets configured to receive a controllable LED lamp, wherein each of the one or more LED drivers is configured to control one of the one or more LED lamp sockets.

15. The lighting control system of claim 12, wherein the one or more detection devices are configured to determine whether a lamp has been put into the system.

16. The lighting control system of claim 12, wherein the one or more detection devices are configured to determine whether a conventional lamp or a controllable lamp has been put into the system.

17. The lighting control system of claim 12, wherein the one or more detection devices is configured to determine the number of light spectrum LEDs that are included on a controllable LED lamp to differentiate the polarity of the LED lamp.

18. The lighting control system of claim 12, wherein the one or more detection devices includes a polarity detection device.