Tag Archives: Optics

14Aug/17

300 x faster WiFi promised by light ray technique

Eindhoven University of Technology researchers say their prototype device can provide WiFi speeds hundreds of times faster than current commercial systems, using infrared rays of light. Jim Drury reports.

EINDHOVEN, NETHERLANDS (Reuters) – Researchers say their new wireless network that uses harmless infrared rays will make wifi speeds up to 300 times faster.

PROFESSOR TON KOONEN, EINDHOVEN UNIVERSITY OF TECHNOLOGY,

“What we are doing actually is using rays of light which convey the information in a wireless way, and each ray is acting as a very high capacity channel. It’s actually the same as an optical fibre without needing the fibre, and what we achieved up to this moment is 112 gigabits per second.”

That’s the equivalent data of three full-length movies being downloaded per second.

Light antennas radiate multiple invisible wavelengths at various angles.

If a user’s smartphone or tablet moves out of one antenna’s sightline, another takes over.

Infrared wavelengths don’t go into your eyes, making them safe to use.

The lack of moving parts makes the system maintenance and power-free.

While each user gets their own antenna.

PROFESSOR TON KOONEN, EINDHOVEN UNIVERSITY OF TECHNOLOGY,

“The big benefits we see of our technique is that you offer unshared capacity to each individual user, so you get a guaranteed capacity. Next to that you only get a beam if you need the traffic. So we’re not illuminating the whole place where maybe a single user is there. That means it’s much more power efficient. Another efficiency, another advantage, is that light doesn’t go through walls. So that means your communication is really confined to the particular room. Nobody can listen in from outside, so it offers you a lot of security.”

The team is seeking funding to help make the technology widespread within five years.

13Apr/16
how your newborn baby sees you

What a newborn baby sees

Parents will soon be able to see how their newborn infant views them, thanks to visual reconstruction research conducted by Swedish and Norwegian researchers. Jim Drury reports. Continue reading

07Dec/15

Finnish optical display could rival Google Glass

The era of bulky, geeky-looking smartglasses might be over. Developers in Finland have created a thin display that fits into ordinary eyewear.

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31Aug/15

Boeing tests laser cannon to combat drones

Boeing tests a new compact laser weapon designed to incinerate aerial drones in seconds from hundreds of meters away.

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17Apr/15

Scientists create self-powering camera that only uses light

American scientists build a self-powering camera that captures images without using an external power source, allowing it to operate indefinitely in a well-lit environment.
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02Mar/15

Science explains why people perceive color differently

(Next Media) – A photograph of a cocktail dress went viral online recently after it had people divided on whether the dress was actually white with a gold lace trim, or blue with a black lace trim. The dress, designed by British clothing company, Roman, is in reality royal blue with black lace trim.
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