Cree LED has up-graded its 1.6 x 2.05mm lens-less XE-G led family, claiming a 20% increase in efficiency for RGBW systems, and a 10% or higher efficiency gain for 13 of the 18 available colors. These devices are intended to be packed closely under colour-mixing optical systems. As such, the gap between emissive surface and package edge is kept small ...
Cree has launched a 1.6 x 2,05mm led range with 17 colour options, plus whites. Called ‘Element G’, and also ‘XE-G’, leds, they are aimed at colour mixing applications and are said to have “nearly 3x the light output of the XQ-E and 9x the lumen density of XP-E2”, said Cree. There are nine colours emitted direct from die: violet, ...
AMS has improved flicker detection in its range of multi-band colour sensors, intended to be used alongside camera chips in phones and tablets to allow them to compensate for artifacts such as banding. “With the wide-spread usage of LED lighting, photography increasingly suffers from flicker from the lighting source,” according to AMS. “The TCS3408 colour sensor detects photometric flicker, enables ...
AS7261 is a calibrated XYZ colour point sensor from AMS, intended for handheld colour analysers and calibration for paint colour matching.
Osram Opto has added a variable colour temperature lighting LED to its Ostar Stage series. Intended for use in spotlights, it has foure die: two 2,700K warm white and two 10,000K very cold white. The dies are paired in opposite corners of a square array for best mixing and, by varying their relative drive currents with appropriate control, colour temperature ...
US scientists have created a bright efficient area light source to compete with fluorescent tubes and OLEDs, it is claimed
LED Engin is to reveal details of an LED that dims like a halogen bulb, reddening as its output drops, at Light+Building in Frankfurt (15 - 20 April), writes Steve Bush.
Ismosys has released details of Sharp Microelectronics 50W LED module which is capable of replacing traditional 50W HID halogen lamps in the same performance class, writes Richard Wilson.
The town of Ede in the Netherlands has installed the world’s first LED street lights, made by Philips at its plant near Lyon in France
Most powerful semiconductor light-emitters ever are 5W white LEDs from Philips-Agilent ventureSteve BushLumileds, the Philips-Agilent joint venture, is to sell 5W white LEDs, themost powerful semiconductor light-emitters ever produced. Called ?Luxeon 5 Watt Star?, the LEDs are the next generation in thecompany?s Star range which started with 1W devices. “Relative toLuxeon 1W, 5W Luxeons have 4x the light output for ...
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