Question:
what's infrared?
2007-09-01 10:58:28 UTC
i have the nokia 6102i, and it has infrared on it, but i was wondering what it does.
and do i need any additional software/physical accessories for it to work?

thanks
Three answers:
S J
2007-09-01 11:02:22 UTC
It's something a device uses to communicate with another device, much like bluetooth or a data cable, only slower. You need another device with infrared to be able to use it. Some laptops have infrared built in. I used to use infrared with my old cell phone. It was a Samsung. You have to go into your phone menu & turn infrared on then place it in front of the laptop or whatever you're communicating with. They have to be close to be able to see each other. Your computer will usually pop up & tell you it sees a device. If you have infrared on your laptop, you'll see a small area that is dark red almost black plastic. That's where the infrared beam comes from. Put your phone close to that.
mete
2007-09-01 18:04:49 UTC
infra red is like an earlier version of bluetooth, you can transfer files and play some games with another phone that has infrared, you have to have the phones infrared sensors point at eachother 1cm away from eachother for it to work the best



then from the phone you want to send files you say Send> Infrared and the other phone should be alerted automatically



you can transfer photos from your phone to your laptop with either,the cable that came with your phone, bluetooth(if your computer and phone have it) or maybe with infrared but you will probably have to buy and external infrared reciever for your computer, (my friends toshiba laptop had infrared it was 3 years old I think)
2007-09-01 18:02:34 UTC
Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. The name means "below red" (from the Latin infra, "below"), red being the color of visible light with the longest wavelength. Infrared radiation has wavelengths between about 750 nm and 1 mm, spanning three orders of magnitude.



The uses of infrared include military, such as: target acquisition, surveillance, homing and tracking and non-military, such as thermal efficiency analysis, remote temperature sensing, short-ranged wireless communication, spectroscopy, and weather forecasting. Infrared astronomy uses sensor-equipped telescopes to penetrate dusty regions of space, such as molecular clouds; detect cool objects such as planets, and to view highly red-shifted objects from the early days of the universe.



At the atomic level, infrared energy elicits vibrational modes in a molecule through a change in the dipole moment, making it a useful frequency range for study of these energy states. Infrared spectroscopy examines absorption and transmission of photons in the infrared energy range, based on their frequency and intensity.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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