At that power, you just need to mask the excess light. You probably
won't need a lens.
Even with less power, it is pretty actinic wavelength. Try and see
what plotting speeds you can get with the normal output.
John M...
==============
--- In Homebrew_PCBs@yahoogroups.com, Cristian <bip@f...> wrote:
> High Power UV LED with Narrow Directivity, offered by Maplin, UK
> (www.maplin.co.uk) order code N76AJ, price GBP49.99.
> DC: 3.5volts/15mA
> 10ms pulse: 30mA
> power disipation:60mW
> optical power output:750W @ If=10mA
> peak wavelength:375nm
> spectrum half width:12nm
> metal can ( 5.4 mm diameter x 6.2 mm length) with quartz
window
> no more optical details, but one can try to find the manufacturer's
site.
> manufacturer:NICHIA
>
> Also 1000W wide directivity.
>
> Any idea about a UV (quartz) colimating lens?
> Cristian