LED modules often have capacitors to reduce flicker. The LED, the capacitor and other electronic components are generally arranged on a printed circuit board. This patent allows for smaller form factors by separating LED and capacitor into two separate structural units. This comes in handy when the form factor of an LED module or fixture needs to be small, such as in poorly accessible areas.
Applications: Low cost filming lighting, proved the level of flickering reduction is sufficiently reduced. Companies: Cinelight, FLEx, etc...
Thanks so much, Conroy!
I think it's pretty good when the LED modules with integrated drivers get smaller and smaller. The life of the LED module should also be improved with this construction method and the space requirement be reduced, in order to be able to use it even in hard to reach places. In addition, the modules can be combined in many ways.
As Franz already said, this Patent will become more and more important for LEDs with integrated drivers like this one: http://www.szledcolor.com/download/WS2813%20LED.pdf
These WS2812/13 LED chips have low voltage DC drivers and usually have a support Capacitor soldered near the LEDs. This could be something covered by the patent if we see LEDs with integrated AC drivers.
The invention discloses a lightweight, small and portable LED luminaire that can be used at poorly accessible areas. Existing designs have problems in terms of luminaire size mainly caused due to presence of in-house on chip parallel capacitors.
Proposed luminaire has a LED, a rectifier and a driver connected in parallel with a capacitor using a cable, to reduce flickering effect. In the proposed design the capacitor is mounted away from the LED to reduce the size and increase capacitor lifetime.
The technology may be implemented in LED spotlights, smart LED luminaires, outdoor LED light etc.
Here are our pros and cons. Pros: Makes sense if you need a low profile for LED and cannot have a bulky capacitor. Or if the capacitor should not be too near at the heat source (LED). Or if the capacitor should be easy to replace. Cons: Not a cost saving because of extra wiring. Instead of two wires you have several wires.
Franz is right. This invention can become very valuable as LED drivers become smaller and smaller. Claim 1 requires "one light emitting diode is arranged in a first structural unit ... and one first capacitor is arranged in a second structural unit ... whereas the rectifier and the driver apparatus are arranged in the first structural unit." Today, drivers are bulky and are often in a separate housing from the LED. When drivers become smaller, I am pretty sure that companies will put driver and LED in one housing and put the larger capacitors somewhere else. And this patent has another 15 years before it expires!
I am happy to see this growing!
Thank you, Timsta. Please let us know what you think about the patent :-)
When LEDs come with an integrated Driver some day, this patent may become relevant