Homebrew PCBs

----- Original Message ----- 
From: "Zoran A. Scepanovic" <zastos@...>
To: "Leon Heller" <Homebrew_PCBs@yahoogroups.com>
Sent: Saturday, October 14, 2006 6:31 PM
Subject: Re: [Homebrew_PCBs] Mercury lamp for UV exposure


> Hello Leon,
>
>  Friday, October 13, 2006, 11:47:42 AM, you wrote:
>
>> I've just bought a ballast to go with a mercury lamp I bought on Ebay. 
>> I've
>> just connected them up and the lamp is working OK. I rather stupidly put 
>> it
>> on the bed with a dressing gown over it to keep the cat away, smelt 
>> burning
>> a few minutes later and found the lamp had burnt the duvet cover and the
>> dressing gown. 8-(
>
>> Next step is to remove the outer envelope and do some test exposures. 
>> I'll
>> rig up a suitable box to keep the UV away from me.
>
>> Leon
>> --
>> Leon Heller, G1HSM
>> Suzuki SV1000S motorcycle
>> leon.heller@...
>> http://www.geocities.com/leon_heller
>
>
>  PLEASE DO NOT BREAK THE OUTER GLASS!
>
>  You  will end up with lot of shortwave UV AKA UV-C. Photoresists are
>  sensitive  (peak)  arround  340  nm  AKA UV-A. Also with outer shell
>  removed,  you  will  generate  lot  of  ozone (O3) which reacts with
>  haemoglobine  in  your  red  blood  cells  and other cells that need
>  oxygen can not use in 'cause it's not O2.
>
>  UV-C  can produce severe skin damage and is 'tethal' to your retina.
>  Irreversible sight damage.

It will be mounted in a light-tight box.

Leon