LED Lighting

Luminus aims to replace ceramic metal halide lamps with its latest range of CoB LEDs. Called the XH series, light emitting diameters of 6, 9, 11, and 14mm are available. 9 and 11 mm LEDs care intended to replace 39W and 70W metal halide sources respectively. The 3,000K 80CRI 6mm device generates 1,500 lm, and when combined with a 85mm ...

 Aiming at lighting manufacturers that don’t want to buy a soldering line, Sheffield-based Litecool has developed a self-adhesive self-connecting LED package that can be pick-and-placed direct onto heatsinks – and it accepts standard lenses from Carclo. No PCB, metal-cored or otherwise, is required. The key to self-adhesive packaging for power devices is to spread heat to an area much large ...

Osram LEDs are illuminating the Roman Achillian Baths in Catania Sicily following a lighting project by the Institute for Archaeological and Monumental Heritage of the National Research Council (CNR-IBAM). Cutting power from 5 to 1.5kW, the original metal halide lamps were replaced by spotlights containing Osram Oslon SSL 80 and Duris P 5 LEDs, which “offer superior corrosion robustness and can ...

 Don’t bother with expensive OLEDs and use a planar light-guide with conventional LEDs instead, said Ohio-based Global Lighting Technologies (GLT). Its latest offering is 100x100mm and 3.5mm thick. “The panel itself measures 2mm and is thinner than prior GLT products while offering enhanced light extraction. The light-guide would typically be edge lit from one or more sides using industry-standard LEDs, ...

A Coventry-based company which develops digital printing systems used in high resolution photographic printing believes the system has the resolution to print electronic circuits. LumeJet, a spin-out from Warwick University, developed a three-colour RGB digital print head which is used in an inkless digital photographic printer. The company plans to use the printing technology for printing electronic devices such as ...

Osram Opto Semiconductors is leading attempts to integrate LED lighting manufacture from epitaxy to finished luminaire in Germany. “For the duration of the project we will be researching completely new concepts for LED production and allow ourselves to question the traditional paradigms of the manufacturing process”, said project co-ordinator Dr Jürgen Moosburger. “With the new production concepts we want to ...

The graphene lightbulb has been the subject of a huge amount of speculation over the past few days. What is it? The truth is, nobody outside University of Manchester spin-out Graphene Lighting knows, so ignore anything you have heard or read. “As a scientist, I would love to say more, but for commercial reasons I can’t,” professor Colin Bailey told ...

Lumileds is competing against multiple miniature LED packages with an device that emits 400lm from a 4.8mm diameter circle for spotlights. “We are providing a high flux, high efficacy LED that improves the quality of light and avoids the ‘showerhead effect’ with distributed, multi-die solutions,” said product manager Ahmed Eweida. Called Luxeon 5258, it comes in a 5.8 x 5.2mm ...

Cambridge Nanotherm has won a design-in with Lumichip for an LED-based ultra-violet chip-on-board modules. “Tests by Lumichip revealed Cambridge Nanotherm’s technology to have extraordinarily high levels of thermal performance, well beyond that of comparable solutions and approaching the thermal performance of aluminium nitride,” said Lumichip. The tests involved a chainable 75W module with an array of 63 UVA (365 to ...

Microchip has included a new power building block in a microcontroller aimed at LED lighting. Called the PIC16(L)F1769, the family has the first PICs to offer two independent closed-loop channels. The firm has steadily been introducing power control peripheral blocks over the last three years – so-called ‘core independent peripherals (CIPs), including for example its ‘complementary waveform generator’ (COG, see ...