Sentences with phrase «phosphors used»

The toxic and expensive phosphors used widely in fluorescent lighting could be eliminated thanks to a new study conducted by a materials scientist at Queen Mary University of London (QMUL).

The phosphors used in many commercial white LEDs have several disadvantages, however.

One of the hurdles they faced was to safely fabricate the phosphor using a compound containing fluoride, which is itself a toxic, corrosive and potentially dangerous chemical to handle.

Not exact matches

Researchers built prototype white LED light bulbs using the new phosphor.

A team led by engineers at the University of California San Diego has used data mining and computational tools to discover a new phosphor material for white LEDs that is inexpensive and easy to make.

The red - emitting phosphor materials so far used are the principal factor responsible for this, because they have a particularly significant influence on the so - called color rendering index.

The new phosphor — made of the elements strontium, lithium, aluminum and oxygen (a combination dubbed «SLAO»)-- was discovered using a systematic, high - throughput computational approach developed in the lab of Shyue Ping Ong, a nanoengineering professor at the UC San Diego Jacobs School of Engineering and lead principal investigator of the study.

Europium and yttrium can be recovered from red lamp phosphor, a powder that is used in fluorescent lamps such as neon tubes.

For artificial lighting throughout the museum, conservators chose novel bulbs that use ultraviolet LEDs rather than the standard blue ones, and different blends of light - emitting phosphors that better approximate natural light when operated at the low intensity needed to avoid damaging fragile pigments.

It is used in the phosphors of display screens, where it emits red and blue light.

HD - CR 35 NDT, A film replacement technology, Computed Radiography (CR), is actually a digital radiography technique that uses what we called an Image Plate (IP) made of phosphor material to replace film as the imaging media.

Each used an image intensifier tube to produced an image on a phosphor screen that is 100,000 times brighter than the light received.

A phosphor converter transforms it into white light suitable for roadway use with a colour temperature of 5,500 Kelvin — ideal conditions for the human eye that enable the driver to recognise contrast more easily and help to prevent fatigue.

Using laser - activated phosphor projection to throw light over 300 meters beyond the range of traditional headlights, the beams are said to provide light that closely resembles daylight.

Soft, phosphor blue illumination is also used on the instrument dials, highlighting the sporting feel of the aluminium - coloured dials.

A phosphor converter transforms it into white light suitable for roadway use with a color temperature of 5,500 Kelvin — ideal conditions for the human eye that enable the driver to recognize contrast more easily and help to prevent fatigue.

Instead of using white LEDs (which have yellow phosphors) that produce a broad light spectrum that makes it hard to efficiently produce saturated colors, quantum dots directly convert the light from blue LEDs into highly saturated primary colors for LCDs.

In particular some of the ebooks mention experiments and tricks using mercury or white phosphor.

Instead of using White LEDs (which have yellow phosphors) that produce a broad light spectrum that makes it hard to efficiently produce saturated colors, Quantum Dots directly convert the light from Blue LEDs into highly saturated primary colors for LCDs.

This Phosphor - brand watch from Art Technology uses a low - resolution E Ink e-paper display that's flexible enough to be mounted on a contoured surface.

But they use a phosphor coating that converts some blue light into a broad spectrum of yellow light.