Homebrew PCBs

At 01:30 PM 2/14/2010, you wrote:
>  A
>parabolic reflector seems like a fun exercise.

lighting centers in places like Home Depot have a chrome-reflective 
plastic grid that is used to 'sorta' collimate florescent bulbs. i've 
seen these same units in professional screen printing exposure units 
that have UV tubes. the grid goes between the bulbs and the glass 
exposure surface and are angled to reflect light back up in a 
straighter line. i do think they are a good addition to an exposure unit.

William Alford  

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