Engineering News Blog

Engineering News

Latest news of interest to engineers. Sourced from GlobalSpec's Engineering News

Previous in Blog: Lightning GT Prototype Due Later this Year   Next in Blog: Diamonds unlock secrets of early Earth
Close
Close
Close
Rate Comments: Nested

A lightbulb powered by radio waves

Posted August 23, 2007 1:56 PM

From Crave: The gadget blog:

Most lightbulbs create light with a pair electrodes. Luxim does it with radio waves. The Sunnyvale, Calif.-based start-up has come up with a way to get rid of the parts inside of high intensity discharge (HID) lamps that are often the first to fail. As a result, Luxim's LiFi (light fidelity) lamp provides more lumens per watt and lasts longer than competing products, according to the company. In traditional HID lamps, high voltage pulses pass between two electrodes. The energy creates plasma from the ambient gases trapped inside the bulb and you get light. The electrodes, however, degrade over time. Tungsten splatters off of them and blackens the surface of the bulb.

Read the whole article

Reply

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Popular Science - Weaponology - Scapolie, new member.

Join Date: Jan 2007
Posts: 1058
Good Answers: 8
#1

Re: A lightbulb powered by radio waves

08/24/2007 8:13 AM

Hi Crave. What happens when someone walks between the tranmitter and the light bulb? Does the light go out, and what about the health of the person? Spencer.

Reply
Reply to Blog Entry

Previous in Blog: Lightning GT Prototype Due Later this Year   Next in Blog: Diamonds unlock secrets of early Earth
You might be interested in: Lamps, High Intensity Discharge Lamps

Advertisement