Re: Fwd: Infrared emittors

[Joshua_Putnam <josh@xxxxxxxxxxxx>]

Spearmint  <minty@xxxxxxxxxxxxxxxxxxx> writes:

>	      I had just visited your web site, and found it very 
>informative. However, there was just one query I had, that I hope you 
>might be able to point me in the right direction. Do you know where I can 
>get a suitable infra-red emission unit that will enable enhance the 
>reflected waves. The application is for a camcorder with nightshot 
>facility, which unfortunately has a range of only 3m in poor lighting 
>conditions but this range can get a lot greater with the aid of such a 
>device. 

Just put an opaque IR filter over an incandescent lamp.  If I
remember correctly, WJ's forsale page lists filters for
Maglite-style flashlights (or "torches" on that side of the
pond, right?).  Also, American Science & Surplus has a nice deal
on military surplus  ~7" diameter domed glass filters somewhere
in the vicinity of 87C -- no data available, but they're dark
enough a bright flashgun doesn't make a visible glow, but the IR
remote for my television still works perfectly.  They're just
about the right diameter to mount over an old-fashioned round
car headlight.  See www.sciplus.com for more info.

-- 

 Josh@xxxxxxxxxxxx  is  Joshua Putnam / P.O. Box 13220 / Burton, WA 98013
                       "My other bike is a car."                   
                     http://www.wolfenet.com/~josh/
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