LED Lighting

A German project has revealed 400W infra-red laser diode bars for welding metals. “About 10 years ago, the best laser bars achieved a power of 200W with an efficiency of about 63%,” according to Osram. “Five years later, an output of 250W at an efficiency of no less than 60% was expected to be the limit of what could be ...

Toshiba has introduced a pair of fast opto-couplers that will work from 2.2V, allowing them to work from the 2.5V rail of LVCMOS, for example, as well as up to 5.5V. Typical 3.3V data rates are: TLP2312 5Mbit/s TLP2372 20Mbit/s The threshold input current of 1.6mAmax and the supply current of 0.5mAmax at entire operating temperature range of -40°C to 125°C ...

Rohm has introduced a linear LED driver for automotive use, following close on the heels of its LED driver for motorcycles. BD18336NUF-M is a 3 x 3 x 1mm constant current driver IC that can deliver 400mA continuously (600mA at 50% duty cycle) into a string of three white LEDs or parallel strings of LEDs. “Heat generated by the LEDs ...

Osram is aiming at automotive interiors with a pair of infra-red leds called Oslon Piccolo – intended to sense occupier hand gestures to allow touch-free control of in-car displays. “Automotive interior design is currently undergoing a fundamental change,” according to the company. “Displays are getting larger, the number of manual controls is decreasing and customisable lighting solutions are creating a ...

Light pipes, indicators and LED accessories from Bivar are now available from Anglia. The distributor signed an agreement with the manufacturer, based in California, USA. The LED light pipes, which fit around panels and PCB enclosures, are a new range that Anglia will add to its existing LED indication range. Rigid and flexible light pipes are used for carrying light ...

SyniosS2222 is a family of low and mid-power leds that Osram Opto Semiconductors is aiming at applications from lighting in electronic devices to ambient lighting in trains, planes and architecture. Ratings range across 10mA to 200mA, and there are six colour options as well as whites: white (3,000 – 6,500K, CRI >80) blue (445 – 460nm) green (520 – 540nm) ...

Rohm has announced a pair of four-channel automotive LED driver, optimising them for the rear light cluster of motorcycles. “In the Asian region, where 2-wheeled vehicles are the main means of transportation for many, a number of vehicle manufacturers are demanding simpler circuit configurations for driving standard rear and license plate lamps,” according to Rohm. “However, until now thermal design issues ...

Bridgelux has announced its eighth generation of its chip-on-board products, delivering up to 185 lm/W from its V, Vero and Vero SE (pictured) Series families at nominal drive current – a 10% efficacy improvement over its previous product generations, it said. “This performance is benchmarked at the 3,000K 80CRI colour point. Efficacies above 200 lm/W are possible at other colour ...

Osram has created a phosphor-converted red LED for car rear combination lamps – for fog lights, for example. It has moved to phosphor conversion, rather than native red emission, to beat temperature droop. The part is called Synios P2720 CR – the initials for ‘converted red’. “One of the main issues with monochromatic LEDs for rear fog applications is the ...

RS Components has launched the RS Pro range of preassembled, prewired and modular LED signal towers. The series is designed to offer OEM automation engineers and maintenance buyers a cost-effective means of visually signalling equipment faults and other machine states, the firm says. Besides preassembled signal towers, the RS Pro range, comprising nearly 120 products, includes individual LED light elements, ...