13 Jun
2009
13 Jun
'09
12:19 a.m.
Bob Bradlee wrote:
usually the UV filter is in the lens / cover not the
cheep glass tube.
Though even if you remove the filter or lens, you still won't get that
much shortwave UV, because the bulb in those is usually in a glass
envelope, and glass blocks a lot of the shortwave UV. That's why tubes
made for shortwave UV, and the windows on EPROMs, are made of quartz
rather than normal glass.
Eric