Subject:
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Re: detecting goal objects at a distance
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 1 Jan 2000 22:52:38 GMT
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Viewed:
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1168 times
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Ben Jackson wrote:
> IR Photography, of course. Lookup Kodak HIE, for example. The filters you are
> looking for are Wratten #87 and 87C. If you look at them they appear to be
> black because they pass no visible light. I believe the difference between the
> two is exactly which IR wavelengths they pass, but I don't remember the
> technical details. I'm sure they're on the Kodak website.
>
> --Ben
OK, thanks for the info. That's interesting. I'll look for it.
Uwe
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Message is in Reply To:
![](/news/x.gif) | | Re: detecting goal objects at a distance
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| (...) IR Photography, of course. Lookup Kodak HIE, for example. The filters you are looking for are Wratten #87 and 87C. If you look at them they appear to be black because they pass no visible light. I believe the difference between the two is (...) (24 years ago, 1-Jan-00, to lugnet.robotics)
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11 Messages in This Thread: ![detecting goal objects at a distance -Ben Jackson (30-Dec-99 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: detecting goal objects at a distance -Mario Ferrari (30-Dec-99 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: detecting goal objects at a distance -Uwe Denzer (31-Dec-99 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: detecting goal objects at a distance -Ben Jackson (31-Dec-99 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: detecting goal objects at a distance -Uwe Denzer (1-Jan-00 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: detecting goal objects at a distance -Ben Jackson (1-Jan-00 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![You are here](/news/here.gif)
![](/news/x.gif) ![](/news/28.gif) ![](/news/x.gif) ![](/news/x.gif) ![](/news/68.gif) ![Re: detecting goal objects at a distance -Mario Ferrari (3-Jan-00 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![RCX Web Server -lego-robotics@crynwr.com (David Pfeffer) (3-Jan-00 to lugnet.robotics)](/news/x.gif)
![](/news/x.gif) ![](/news/68.gif) ![Re: detecting goal objects at a distance -Peter Vogel (31-Dec-99 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: detecting goal objects at a distance -Ben Jackson (1-Jan-00 to lugnet.robotics)](/news/x.gif)
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