Re: Thermal IR on Ebay

[phillip geller <filje@xxxxxxxxxxxxxxx>]

At 08:13 AM 3/25/99 -0800, you wrote:

>
 a Hughes Aircraft
>>> military-surplus infrared viewing device, spectral response 3 to
>>> 5.4 microns, using an argon-cooled photovoltaic detector at -186C.
>
>
>According to the ad, it's designed for field use and cooled with
>a bottle of argon, readily available from any welding supplier.
>No idea how quickly it uses up argon, but you definitely can get
>things very cold with bottled argon or helium.
>
>-- 
>
> Josh@xxxxxxxxxxxx


I saw one of those about 20 years ago. A local company 
bought one to look at customer's homes to locate areas of heat loss
where the insulation was insufficient. The guy said that the argon
to cool it was kind of pricey. I think it had a polaroid film back 
on it and I wasn't impressed by the image quality.

Phil
phil 
phillip geller photography
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