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ArcticMyst Security by Avery
IR lasers and TV's
- Thread starter trueHOUSE
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I don't think so, mainly because the IR led in a remote control blinks very rapidly in order to send its data to the tv, and a IR laser would have to mimic the blinks. The wavelengths also might differ.
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You know, if you put an IR diode instead of the LED you could have a long range remote to screw with your neighbours 
You would have to mount a scope on it though.....or a visible laser sight, but that would be easy to detect
You would have to mount a scope on it though.....or a visible laser sight, but that would be easy to detect - Joined
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Just make it diverge quite a bit, and it could work IF the wavelengths are the same.
This could actually be a cool project... I'm getting interested...
I did a little research, and it seems the wavelength most commonly used in IR remotes in 980nm. You can buy 10mw 980nm modules from aixiz for $8.
This could actually be a cool project... I'm getting interested...
I did a little research, and it seems the wavelength most commonly used in IR remotes in 980nm. You can buy 10mw 980nm modules from aixiz for $8.
TVs use a photodiode that only reacts at a certain wavelength (I think 980nm), the RC sends data in binary form, I can't remember what each blink meant but you could research if you're serious about this.
EDIT: And I remember some tiny devices that mimic the RC signals and re-emits them, this is used to expand the RC range, you can put many of these in a house and control your TV from anywhere if you send a signal towards the house, you can pull off some pranks with these.
EDIT: And I remember some tiny devices that mimic the RC signals and re-emits them, this is used to expand the RC range, you can put many of these in a house and control your TV from anywhere if you send a signal towards the house, you can pull off some pranks with these.
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If the ir led that is inside a typical remote needs the same input power as a lower powered laser diode, I don't see any reason why you couldn't swap the led out for a 980nm laser diode...
phenol
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normally these LEDs are driven with pulse trains in excess of 1Ampere. swapping the led out for a low power laser, would cause the the very first rising edge it enconters to COD it.spyrorocks said:
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Yeah but the Aixiz module would have a driver with it... which would sort that out.
and I have never ever heard of a tiny little 10,000mcd LED taking over an amp. a 3 watt LED takes slightly under an amp.
and I have never ever heard of a tiny little 10,000mcd LED taking over an amp. a 3 watt LED takes slightly under an amp.
phenol
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that's an amp of pulsed repetitive current, for intance 50-usec pulses, 2% percent duty cycle. RC LEDs normally yield a few mW running continuously at 20-100mABlueFusion said:
