 | | General IR question —Dan Novy
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| | | 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)
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| | | | | Re: General IR question —John Barnes
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| | | | | 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)
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| | | | | Re: General IR question —Steve Baker
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| | | | | (...) 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)
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| | | | | | | Re: General IR question —Rob Limbaugh
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| | | | | | 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)
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| | | | | | | | Re: General IR question —Mike Fusion
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| | | | | | (...) 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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| | | | | RE: General IR question —Marco Correia
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| | | | (...) 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)
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