LED Lighting

Osram has released a green laser for phone-based projectors, capable of delivering 140mW pulses. Although a projector also needs red and blue lasers, green is the colour that poses the greatest challenges in semiconductor laser and LED production. “Up to now, RGB laser projections for smartphones, based on a red, green and blue laser, often had brightness problems,” according to ...

Osram has released the second generation of blue multi-mode laser diodes for car headlights, doubling range in auxiliary high beams compared to with its previous lasers, to 600m, it claims. What lasers offer over LEDs as a light source is higher light output per unit area (luminance) – which then allows a slimmer smaller optical chain for a given final ...

Osram is aiming at farmers, horticulturists and viticulturists with a broad-band near-infra-red LED for in-field reflection spectroscopy. “One of the most important decisions that farmers and vineyard owners have to make involves getting the timing right for the harvest,” it said. “Simply scanning fruit or cereal crops with the near-infra-red LED installed in a smartphone or tablet produces reliable information ...

Vishay has introduced a series of 1Mbaud (2MHz NRZ) optocouplers with built-in Schmitt trigger and open collector output. Called the VOH1016A series, the typical input current for output turn-on is 650μA (2mA max required) with guaranteed on-off threshold hysteresis – I(off)/I(on) is between 0.5 and 0.95, typically 0.9 (Vcc 5V, 280Ω load). Output stage supply voltage range is 3-15V (at 550μA ...

Selectronic, the Witney LED specialist, and Hongli Zhuihui of Guangzhou, China are to collaborate with Epistar of  Hsinchu, Taiwan to boost product development in the automotive LED sector. Selectronic are partners and European distributors of LEDs for market leaders Hongli Zhihui Group. “Partnering with the Taiwanese company Epistar forms a strategic alliance aimed  at harnessing resources from both sides to ...

Automotive product announcements appear to be dominating the Electronica build-up, and Osram is no exception as it will be revealing details of its intelligent RGB LED for vehicle interior lighting. Read our full Electronica 2018 coverage » Part of the Osire product family, E4633i, includes three LED die – red, green and blue – as well as a serial control ...

Maxim’s 12-switch matrix manager minimises thermal issues associated with LED matrix lighting applications by offering a 70 mOhm RDS_ON. The MAX20092 provides flexible current management for matrix and pixel lighting driving LED currents up to 1.5A. Twelve integrated switches control LEDs in string voltages up to 56V, saving design time and reducing complexity. The chip comes in a 5mm x ...

Osram has introduced a high luminance LED for projection headlamps using DMDs – digital mirror devices – to change headlight beam shape – and more, according to Osram. “Each headlight achieves a resolution of more than one million pixels, offering car drivers not only classic illumination but also optional support from information projected onto the road,” it said. “For example, ...

Vishay has introduced its first automotive-grade AEC-Q101 qualified, phototransistor optocoupler. Called VOMA617A, it operates at 5mA and has a current transfer ratio between 50% and 600% – which can be specified, within bands, when ordering. Operating temperature is across -55 to +110°C. Maximum collector-emitter potential is 80V, and 3,750Vrms isolation between input and output circuits is provided, along with ≥5mm creepage ...

Cree has announced an extension to the XLamp XP-G3 LED product line optimised for connected lighting. It is designated the  XLamp XP-G3 S Line. With the XP-G3 S Line, Cree delivers high-power LED technology optimized for long-lifetime, high-power general lighting applications where sensors and the internet of things (IoT) are becoming common, such as commercial indoor, parking, industrial and roadway. ...