LED Lighting

Lumileds has tackled colour fringing in LED lighting with a range of LEDs that with matched optical centres regardless of wavelength. The family of devices is called Luxeon C Colors, and is aimed at stage and television lighting, as well as architectural lighting. “We’ve solved the problems of beam halos and mismatched, un-mixed colour by designing our platform to offer multiple ...

ESCATEC has a solution to the challenge of effectively cooling high brightness LEDs. Its Heat Spreader approach solders the LEDs onto a copper substrate, which is up to ten times more effective at dissipating the heat generated by the LEDs than current solutions. The CoolRunning design means that LEDs with a power density of up to 10W per mm2 could ...

Plessey has been given £6.7m by the Regional Growth Fund (RGF) towards the expansion of its LED manufacturing facility in Plymouth. Solid state lighting forms a significant part of global efforts to reduce energy consumption and greenhouse gas emissions. According to a new market research report (1), the solid state lighting market size is projected to reach $22.2bn by 2020, ...

Plessey is retrofitting its Plymouth manufacturing facility with LEDs and lighting modules made on-site. It will replace fluorescent tubes and compact fluorescent bulbs in existing fixtures – approximately 2,700 fixtures replacing 4,200 fluorescent lamps – for which it has designed retrofit kits. “LED retrofit kits offer the facilities engineers and installation contractors a cost effective, quick and easy method to take ...

The introduction of LED street lighting has raised a new problem. How can the electronic drivers be protected from voltage peaks from lightning strikes. The problem with LED lighting modules is that they operate at lower voltage levels and could be damaged from overvoltage. According to LED supplier Osram, this danger has increased with the UN Climate Council identifying increasing levels ...

Today Plessey announced the release of its range of GaN-on-Si MaGIC LED die. The blue die, sometimes referred to as blue pump for their ability to pump phosphor to a white colour range, are the latest innovation in high brightness LED die designed for a wide range of medium to high power applications including general lighting, signage, commercial, residential and ...

 Plessey has launched a range of LED ‘filaments’ based on GaN-on-Si die made in Plymouth. “The filaments are designed for the surging filament bulb market where these replacement lamps have far better performance, but maintain the physical appearance of incandescent lamps,” said the firm. Called the PLF series, the chip-on-board filaments create the same amount of light as an incandescent ...

Plessey has expanded its dotLED range, designed for wearable LED tech, by adding a wider selection of colours, including red, green and blue. “Our dotLED product range addresses the optical, mechanical and cost requirements for the typical wearable applications. These include wristbands trackers for health and fitness as well as many other applications for dot matrix displays, says Plessey’s VP ...

Following research at Sheffield-based LED packaging firm Litecool, narrow beam angles from LED packages without secondary optics or reflectors look closer. The proof-of-concept device produced a beam with 50% of light in 36 degrees, and over 90% efficiency. “Most package manufacturers design their LED packages for maximum light extraction. This means as little manipulation of the light as possible and ...

The Module-Driver Interface Special Interest Group (MD-SIG) has released its specification for a universal electrical interface between LED lighting modules and their power supplies. The standard has the support of Osram, Panasonic, Philips and Tridonic. Called LEDset1 edition1.0, it is a three wire interface (see diagram): power, ‘Iset’ and a return for both. The specification also allows for separate returns ...