#lighting applications

Till mid-January 2021, the Indian government had distributed more than 366 million light-emitting diode (LED) lights across the country under its Unnat Jyoti by Affordable LEDs for All (UJALA) scheme. Under the same scheme, the government had also replaced 11 million conventional streetlights with LEDs till the beginning of 2021. Such measures are being taken around the world owing to the rising…

New Post has been published on https://leddaily.com/led-component-news/osram-opto-expands-led-chips-projector-applications/

Osram Opto Expands LED Chips for Projector Applications

Osram Opto Semiconductors presents P2W 01, a particularly reliable addition to its familiar Osram Ostar Projection series. This new LED contains four chips which can be controlled in two separate groups. The LED therefore represents an integrated solution which in the event of emergencies offers trouble-free operation in safety-related and security-related applications such as control room monitors.

“The redundant system of the new Osram Ostar Projection is ideal for 24/7 applications. If a chip should ever unexpectedly fail, the second system will continue to operate without any problem at all”, said Wolfgang Schnabel, Product Marketing LED at Osram Opto Semiconductors. Up to now, only the chips in the large Osram Ostar Projection P3W could be controlled separately. This is now also possible with the P2W 01. Osram Opto Semiconductors has developed a compact LED with two self-contained parallel systems with two chips each. The connection design has also been improved, from 2-pad to 3‑pad. This means there are now three connections instead of two. All four chips occupy one pad, the other two pads are each reserved for a group of two. “A new soldering process ensures that the heat produced in the application remains low. The connection between the chip and the package can therefore withstand a lot”, added Schnabel.

Compact solution with vivid images

The high-current chips in the new Osram Ostar Projection are based on the most advanced thin-film and UX:3 chip technologies. They produce high luminance, resulting in extremely bright and vivid images in the relevant applications. The new LED therefore enables lighting solutions to be more compact than before because a smaller active surface is needed to achieve the same light output. Customers who are currently using the P2W can easily upgrade their design to the new Osram Ostar Projection because the size and the optical and technical data correspond to those of the P2W version. Connectors and other accessories are widely available on the market.

The new LED will be used in particular as a light source for back projection systems. This involves projecting the image onto a screen with the aid of reflective optics. Often such systems are designed without borders. Multiple systems are arranged seamlessly next to each other, creating a large borderless screen on which one image can be shown or a different image can be shown on each screen. These systems are used predominantly in the security sector where 24-hour operation is needed, for example in control rooms for subway stations, railroad stations and underground car parks, and also for major events and industrial plant control.

You can find more information on the Osram Ostar Projection series on the internet.

New Post has been published on http://leddaily.com/led-lighting-news/lifelike-tree-burning-man-2017/

Lifelike Tree with 15K LED Lights Debuts at Burning Man 2017

People visiting this year’s Burning Man will be awed by an enormous installation project created by a group of artists from San Francisco: a lifelike tree decorated with 15,000 LED lights, motion sensors and sound detectors.

The project is called The Tree of Ténéré, which is inspired by an ancient tree in the middle of Sahara desert that was destroyed in 1973. It was the “most isolated tree in the world” and was considered a landmark for travelers.

To bring this legendary tree back to life, these artists and designers plan to equip LED lights in each leaf that form a dome-shaped “canvas of light.” At night, these LEDs will glow in sync with music. At other times, sensors will allow passersby to control the lights to create light art together. “We’ve already prototyped systems that use hidden microphones and simple wearables to let participants activate the LEDs through sound (chanting, humming, singing, words), biorhythms like heartbeat, and movement,” the team said.

The tree will also be as lifelike as possible, even allowing people to climb it. “We’ve designed and engineered Ténéré to be safe for climbing, and construction is already underway in southern California. Made from hand-sculpted fiberglass and hand-painted resin, the bark looks and feels so real you’ll think you’re climbing a living tree…in the middle of the desert,” the introduction page on Indiegogo read.

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