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 Robotics / 17898
  General IR question
 
In general, what's the difference between the IR "signal" that the tower and RCX use to communicate and the IR energy used in thermal imaging? Is it just a matter of frequency? If the RCX was pointed at an IR camera, what what would it see? -- Dan (...) (23 years ago, 13-May-02, to lugnet.robotics)
 
  Re: General IR question
 
Typical remote control IRs like the RCX system are usually in the 870 - 950 nm range, just below visible red. A standard silicon CMOS camera chip will "see" this fine unless it has an IR cut filter (commonly installed in camcorders etc). Silicon is (...) (23 years ago, 14-May-02, to lugnet.robotics)
 
  Re: General IR question
 
(...) IR sensors (of the type used by the military for night operations for example) operate over some fixed range of IR frequencies - some work in the near IR (or perhaps even somewhat into the Red end of the visible spectrum) - others in the far (...) (23 years ago, 14-May-02, to lugnet.robotics)
 
  Re: General IR question
 
Someone has a site with a video of a robot they made. In the video, you can see the two IR LED's blink. The site owner made a comment about what the blinking was caused from. Unfortunately, I don't remember the site address... I think the site had (...) (23 years ago, 14-May-02, to lugnet.robotics)
 
  RE: General IR question
 
(...) A bright (white/blue) light, just like when you point a TV remote to a regular CCD video camera (usually very IR sensitive). mc. (23 years ago, 14-May-02, to lugnet.robotics)
 
  Re: General IR question
 
(...) can (...) <snip> here's the link, he hasn't updated in a long time but it is still good information. (URL) (23 years ago, 16-May-02, to lugnet.robotics)

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