18 W per LM. Yang and Huang have recently achieved the highest lumens per watt ever recorded for a red phosphorescent LED using a new combination of plastic, or polymer, infused liquid - and they did it at half the current cost. Yang and Huang's latest record will be presented at the Society for Information Display 2007 conference in Long Beach, Calif., from May 20 through 25.
"It's a much simpler, lighter, thinner and more elegant answer to creating a better LED product," Yang said.
Yang began his high-performance PLED research at UCLA Engineering in early 2003 with a then-graduate student named Qianfei Xu, who was part of the professor's research group, and achieved a record-high efficiency for green PLEDs.
"The current results represent our ongoing quest to create better, slimmer, less expensive high-performance PLEDs," Yang said. "Using our simple solution method, we already have successfully achieved several world records in device efficiency, including 20 lumens/watt white emission fluorescent PLEDs, 30 lumens/watt green emission fluorescent PLEDs and 18 lumens/watt red emission phosphorescent PLEDs. So our latest red emission PLED is just one of our multiple records. It's a very exciting development."
The new technology, which already has been licensed by Canon, should be available to consumers in about three years.
Source: UCLA
Your question needs clarification.
No, that is an auto-recursive expression. The LE of LED already refers to light emitting so what you are asking about is light emitting light emitting diodes! In any case, we have no way of knowing what you want to know about LEDs.
OLED (organic light-emitting diode) technology is more energy efficient than ordinary backlighting because each pixel emits its own light, eliminating the need for a separate backlight. This allows OLED displays to consume less power while providing better contrast and color accuracy.
Typically, about 12 volts DC is the maximum input for led stripes for lighting. If its in a controller or a computer it's typically 5 volts. By controlling the voltage you can control the brightness of the led (just keep it under 12). Now as for the current consumption that all varies upon the manufacture and size of the LED. If you have any paper work on it, it should tell you the recommended input voltage as will as the current consumption. If you don't just know that the current consumption of an LED is very very low.
because is emiting light
Light Emitting Diode - LED
A light Emitting Diode.... Light Resistat Diode ...
700 lumens
Light Emitting Diode Light Emitting Diode The acronym LED is short for a light-emitting diode.
A 100W incandescent light bulb typically produces around 1600 lumens of light.
No, lumens and foot candles are not the same. Lumens measure the total amount of light output from a source, while foot candles measure the illuminance or light intensity on a surface. Lumens are used to describe the brightness of a light source, whereas foot candles are used to describe the light level at a specific point.
The maximum number of lumens produced by a 150 watt light bulb is typically around 2600 to 3000 lumens.