Japan-based Tamura has developed a communications system that’s based on light and doesn’t require radio signals that are transmitted by mobile phones and similar devices.
The core of the so-called optical intercom technology is an LED ceiling light that transmits light signals to portable headsets that use infrared light to transmit signals back to the receiver in order to avoid interferences. Tamura says the LED ceiling device can be hooked up to incoming phone lines to allow users to talk over phones. One of the devices covers a radius of about 4 meters.
The company hopes to sell its technology to hospitals and airplane makers, for example, since radio signals cannot be used in these places. Tamura claims that in addition, light signals are more secure than radio signals since a curtain is enough to fence out eavesdroppers.
A set of four intercoms and a main transceiver will cost $20,000 when the system goes on sale in Japan next year in April.
Via Nikkei [registration required, paid subscription]
Probably ought to review their business plan. Rf in a hospital isn’t a problem. One hospital next to me has a cell site on top.
And it isn’t much of an issue in airplanes either. the biggest problems with RF signals in airplanes isn’t impacting the aircraft, it is impacting ground station operaiton. When you have a cellphone at 30,000 feet over New York Sity, it can impact cellphone communications for other users. Cellphones share channels, in an airplane ou hear them all.
Now the biggest thing is that a 4m distance isn’t a big deal and isn’t new.
I was just imagining using light in a more efficient manner just yesterday.
Like having any color cast exactly where you like similar to a hologram (preferably 6500k white light) like a curtain or beam if you will.
Current light tech, to begin with, is very inefficient in design AND in application.
Very Interesting
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