SPIE Membership Get updates from SPIE Newsroom
  • Newsroom Home
  • Astronomy
  • Biomedical Optics & Medical Imaging
  • Defense & Security
  • Electronic Imaging & Signal Processing
  • Illumination & Displays
  • Lasers & Sources
  • Micro/Nano Lithography
  • Nanotechnology
  • Optical Design & Engineering
  • Optoelectronics & Communications
  • Remote Sensing
  • Sensing & Measurement
  • Solar & Alternative Energy
  • Sign up for Newsroom E-Alerts
SPIE Photonics West 2018 | Call for Papers

SPIE Defense + Commercial Sensing 2018 | Call for Papers




Print PageEmail Page

Illumination & Displays

Ultra-bright AlGaInP Red LED Chips

Showa Denko K.K. has started commercial shipment of aluminum-gallium-indium-phosphide (AlGaInP) ultra-bright red LED chips with luminous efficiency of 80 lumens per watt. The luminous efficiency of the new product represents a 40% improvement over previous LEDs.

The new product features a high efficiency in bringing out light as a result of improved shape and arrangement of electrodes, as well as improved chip surface treatment. Thus, it becomes possible to reduce the number of LED lamps while maintaining the same level of brightness, contributing to energy conservation. AlGaInP ultra-bright LED chips are now used mainly in outdoor displays, however, new applications are being developed, including automotive parts (rear lights, interior lighting) and LCD backlighting for flat-panel TVs.