IR Rays

Well, think about it for a minute. What are the safety considerations about using the pushbuttons on a UV-emitting television remote, when using it could give those in the same room a sun-tan?

I'm trying to patent my neutrino remote control. In theory it should work from any location in the house. Or in the world, if pointed accurately enough. I've got the remote working great, but I'm having trouble with the receiver.

Regards,

Atrocious

I'm probably going to minimize the detail more than you'd like, but I'll try to provide a serious answer. IR is not as subject to blocking and interference as would be visible light. Strong sunlight or artificial lamps would keep that kind of device from functioning properly. UV might work, but is much more energy hungry, and also has a much shorter effective range.

Microwave length might work, but then you have even more energy required, and limited bandwidth due to uses like radio and radar transmissions. Below IR, you get into heat, which also has obvious limitations, and past far UV...well you should be getting the picture. The energy accountancy (so it can be battery-powered and not need new ones every day) and real-world effectiveness (will it work well under most in-home conditions?) are the main determining factors. Hope this helps.

IR IS NOT used in mobile phones. It is widely used in remote controls for data transmission because it is easily generated by efficient LED's, is not subject to interference by ambient (natural or artificial) light in the home, has reasonable range, has sufficient band with to carry the data swiftly. It is CHEAP to use.

In some cases, IR links are used as a replacement to microwave links in data communications, including cellular telephony (not mobile phones) for communication between base stations. IR has similar performance with microwave BUT is not radio! This means that in most countries you don't need to pay for a license to use IR. Radio-spectrum, as being a very limited natural resource (already exhausted!), is managed by governments, is highly regulated and expensive.

UV is absorbed differently than IR in free space (air) and I have no knowledge of UV transmitters (solid state lasers) available for data communications. IR lasers are all over the place... Another thing is that UV radiation could be very harmful to any living creature. So, I'll stick with IR.

thanks a lot sirs for ur valueable information.

Once again, an inquiry has gone awry with incomplete given info on the upside.