Articles - Optoelectronics

By adding just two MCU I/O pins, a standard LED can also perform as a light-detecting photodiode. Sometimes people forget that light-emitting diodes can also detect light quite well. They're usable in a wide range of applications as ...

Uttam Sahu, Texas Instruments Many imaging products are moving toward more efficient LED array-based solutions and away from traditional technologies such as lasers or lamps. Applying resistive voltage dividers enables the linear forward biasing of ...

David Zhang LEDs Magazine In many solid-state lighting (SSL) applications, such as architectural, area, and downlighting, color accuracy is very important. Moreover, an increasing number of products support dynamic color tuning to set the white ...

Brian King, Texas Instruments EDN In isolated power supplies, optocouplers pass the feedback signal across the isolation boundary. Optocouplers contain both a light-emitting diode (LED) and a photo detector. Current flowing through the LED results ...

Maria Guerra Electronic Design Part 1 In 1964, you filed a patent for Schottky bipolar TTL logic circuits. In 1969, Intel released their first product, which used Schottky TTL. Can you explain how your patent came about? Was Intel was ever made ...

Maria Guerra Electronic Design Dr. James R. “Bob” Biard (born May 20, 1931) is an American electrical engineer and inventor who holds 72 U.S. patents, including the GaAs infrared light-emitting diode (LED), the optical isolator, the ...

Nat Bowers Electronic Specifier Terahertz radiation - the band of electromagnetic radiation between microwaves and visible light - has promising applications in security and medical diagnostics, but such devices will require the development of ...

Lux Review Europe The inventor of the blue LED, Dr Shuji Nakamura, says laser diodes are the future of lighting and have compelling advantages over LED. Dr Shuji Nakamura speaking about LED and laser technology at the LuxLive exhibition in London. ...

Chris Glaser, Texas Instruments Electronic Design The thermoelectric cooler that stabilizes the temperature of a laser diode needs a special power-supply configuration, which is provided by this simple circuit. A most critical device in an optical ...

LEDs are hot in terms of market potential, if not actual temperature. As incandescent lamp bans spread around the world, LED lighting seems to have unlimited potential (see the Table 1). However, the technology has its flaws. How can we state with ...