electronics

sarat_sujani · Feb 4, 2005

electronics
why cant we use a IR rays for transmiting signals

Jef Patat · Feb 4, 2005

i don't see why not

take a look at https://www.epanorama.net/links/irremote.html and you'll find some examples, it is quite simple.

Some mobile phones have IR on board, mine has and I can communicate with my laptop which has an IR port as well

It is not used much however because it is quite slow

regards, Jef

sarat_sujani · Feb 4, 2005

thank u

thank u for sending reply about what i asked can u send some information regarding UV rays

Jef Patat · Feb 4, 2005

that,s physics, don,t know what i could explain about that, check google for it

sarat_sujani · Feb 4, 2005

thank u

ok
thank u sir i am happy in receiving reply from u
ok sir i am an engineering student electronics

Juglenaut · Feb 4, 2005

Wavelegth limits IR to certain Fiber optic cables, IR though the air is short distances only, expensive to implement large systems to travel IR over wide areas, IR is line of sight.

Oznog · Feb 4, 2005

Re: thank u

sarat_sujani said:
thank u for sending reply about what i asked can u send some information regarding UV rays

I'm guessing you meant to ask why aren't UV rays used for transmitting instead of IR.

UV is higher energy than visible spectrum, while IR is lower. UV can potentially damage the eye if stared into at close range (kids). UV takes more power to drive. UV LEDs are only recently available (5 yrs or so), much more expensive than IR, and there are no cheap UV receivers.

Juglenaut · Feb 5, 2005

Re: thank u

Oznog said:
sarat_sujani said:

thank u for sending reply about what i asked can u send some information regarding UV rays

Click to expand...

I'm guessing you meant to ask why aren't UV rays used for transmitting instead of IR.

UV is higher energy than visible spectrum, while IR is lower. UV can potentially damage the eye if stared into at close range (kids). UV takes more power to drive. UV LEDs are only recently available (5 yrs or so), much more expensive than IR, and there are no cheap UV receivers.

UV has about the same constraints. UV transmits faster. You would not want to uses it to transmit though the air.

electronics

sarat_sujani

New Member

Jef Patat

New Member

sarat_sujani

New Member

Jef Patat

New Member

sarat_sujani

New Member

Juglenaut

New Member

Oznog

Active Member

Juglenaut

New Member

Similar threads

electronics

New Member

New Member

New Member

New Member

New Member

New Member

Active Member

New Member

Similar threads

Privacy & Transparency

Privacy & Transparency