MadSci Network: Engineering

Subject: Infra Red and Water

Date: Fri Oct 29 14:53:56 1999
Posted by Pete Mobley
Grade level: nonaligned School: Axial technologies,Inc.
City: Minneapolis State/Province: MN Country: USA
Area of science: Engineering
ID: 941223236.Eg

I want to see in fresh water with a camera I am designing.  My question is 
will small 5mm IR LED's work better than 5mm super-bright LED's.  I've been 
told that IR works better, but if fish are cold blooded, you really 
shouldn't be able to detect them with IR correct?  If the red spectrum is 
longer, I assume you should be able to see farther with the standard Red 
LED.  On the other hand, is white light better than IR or red light?  Thank 

Re: Infra Red and Water

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