Category: Led

There’s many a time when you want to connect a white LED to a microcontroller operating from a 3 V supply voltage. Unfortunately, this doesn’t work and your nice white LED only lights up feebly or not at all. Why does it work perfectly with red and green LEDs, but not with white? A...

Lighting to energize or relax: new LED packages help improve alertness and the quality of sleep by adjusting melatonin levels. Samsung Electronics unveiled its first “human-centric” LED packages, collectively known as LM302N. Engineered with carefully created light spectra, the...

Lumileds has added news LEDs to its Luxeon IR Domed Line with a significant increase in both DC and pulse drive current–up to 1.5A and 5.0A, respectively. The new emitters deliver radiant power of 1350mW at 850nm wavelength (slightly visible) or 1450mW at 940nm (invisible or covert...

This small constant current LED driver Nano shield has been designed using CAT4104 IC from ON semiconductor. Its 4 channel LED driver. The board has provision to mount 20 SMD 1206 LEDs. The LED can be RED, GREEN, BLUE and WHITE. Reduce the number of LED to 12 if White LEDs are used, as...

Interesting how what started as a little discussion turned out to be one great solution at MAKE 100 as founders and owners of Staudt Technologies, Katharina and Yannic share their newly discovered solution with the world. Having realized how really difficult it is to quickly find...

TT Electronics/Optek's photodiode array features a high-temperature SMD chip carrier and low leakage current. TT Electronics/Optek Technology's OPR2100 device is a six-element photodiode that is designed to meet the needs of motor encoder applications. Designed specifically for...

As projectors grow more and more popular in home entertainment systems, so have the expectations of users. In addition to ever-higher resolutions, the focus is also on richer colors, contrasts and, of course, higher brightness. With the Ostar Projection Power family, Osram has succeeded...

Lumileds LUXEON IR ONYX Broadband Infrared Emitters feature a continuous broadband Infra-Red (IR) emission from 650nm to 1100nm with good light output characteristics. These IR emitters come in industry-standard 2720 package and footprint for easy integration in the existing designs....