leds

05.20.08

Smaller, Cooler LEDs for Medical Devices

An ultra-long-lasting LED could prove the solution to problematic lasers
By Gregory Mone Posted 02.28.2008 at 1:28 pm 0 Comments

MicroLED: Photo by Tyndall National Institute,
Scientists at the Tyndall National Institute in Ireland have developed smaller, cooler light emitting diodes that they say could be useful in medical devices such as fiber optic probes.

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Salmon Sperm’s Bright Future

DNA from fish parts could lead to better TVs and cellphone displays
By Mike Olson Posted 02.26.2008 at 12:22 pm 0 Comments

Bright Future: Photo by G. Brad Lewis/Getty; Sony; Jim McIsaac/Getty
The fishing industry discards thousands of tons of salmon sperm every year (it ruins the taste). Now Andrew Steckl, a photonics expert at the University of Cincinnati, has figured out how to use the refuse to get a 10-fold boost in the brightness of the organic light-emitting diodes used in cellphones, PDAs and some TVs.

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Top-Notch Persistence of Vision

By popsci Posted 05.21.2007 at 12:03 am 0 Comments

Another image from the day-one slide show I couldn't let get buried: James Nick Sears and his dad's amazing "persistence of vision" project, called the ORB. The ORB is hundreds of computer-controlled LEDs soldered into a ring that spins at an impressive 1,600 rpm. A computer synchronizes the LEDs to project animated digital images in full 3-D. —John Mahoney

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