Yahoo Groups archive

Homebrew PCBs

Index last updated: 2026-04-09 22:20 UTC

Message

RE: [Homebrew_PCBs] Re: UV Light Box Bulbs

2012-01-20 by Boman33

I bought my HID lamp at eBay.  Remember to buy a socket too.

I am not using it for PCB production since I have a 400W UV light source.

 

Always use eye protection!

By the way, breaking the protective glass on a regular mercury bulb lowers
the UV output, not increases it. (The capsule will run too cold to be
efficient.)

Bertho

==============================

From: Jeff   Sent: Thursday, January 19, 2012 22:55
I see that some here are using HID mercury lamps for mask/photoresist
exposure. Where can HID mercury lamps be obtained? Do they give better
results than black lights or the yellow-housing halogen work lights found in
home centers?

Jeff

> DO NOT break the outer glass shell of a mercury vapour lamp! It will
radiate a lot of short wave UV (UV-A) which is dangerous for eyes and skin,
and it generates lot of ozone (O3). Good results could be obtained without
breaking the outer glass shell.





[Non-text portions of this message have been removed]

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.