May

5

Reducing The Annoying Blue Light In A New LED

May 5, 2021 | Leave a Comment

Researchers at the University of Houston have developed a prototype LED that reduces – instead of masks – the excessive blue component, while also making colors appear just as they do in natural sunlight. To be more energy efficient, many people have replaced their incandescent lights with light-emitting diode (LED) bulbs. However, those currently on […]

Sep

2

Tiny LED Is Way More Efficient and Can Be A Laser Too

September 2, 2020 | Leave a Comment

Open Image…Save ImageOpen Image (using #TmpD/ia)… The National Institute of Standards and Technology (NIST) has a new design for light-emitting diodes that achieves a dramatic increase in brightness as well as the ability to create laser light. These characteristics could make it valuable in a range of applications. The device shows an increase in brightness of 100 to 1,000 times […]

Oct

15

The Light that May Follow the LED

October 15, 2014 | Leave a Comment

Scientists from Tohoku University in Japan have developed a new type of energy efficient flat light source based on carbon nanotubes. The new flat panel technology has a very low power consumption of around 0.1 Watt for every hour’s operation making them about a hundred times lower in energy consumption than an LED. With only […]

Aug

2

Solving the Last Big LED Problem

August 2, 2013 | 1 Comment

Rensselaer Polytechnic Institute researchers have identified the mechanism behind a plague of LED light bulbs.  The problem is called “efficiency droop” that causes LEDs to lose up to 20 percent of their efficiency as they are subjected to greater electrical currents. Efficiency droop, first reported in 1999, has been a key obstacle in the development […]

Nov

2

The OLED Is Coming Better Cheaper and Flexible

November 2, 2011 | 1 Comment

Regular readers know the LED and its organic OLED cousin are getting poised to compete with the compact florescent and incandescent light sources.  The past few days has seen two OLED breakthroughs that are quite similar and worth a very close look. Current OLEDs are made of glass substrates and encapsulated between two layers of […]

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