From: Richard Urmonas (rurmonas@senet.com.au)
Date: 07/13/03-03:28:52 PM Z
On 2003.07.14 05:18 Sandy King wrote:
> Be very sure that you understand the potential dangers in using a
> lamp of this type. Most of the UV lamps that we use for exposing UV
> processes (HID lamps such as mercury vapor and metal halide, BL, BLB,
> and SA fluorescent tubes) put out most of their radiation in the
> Ultraviolet A zone, which is not especially hazardous to your health.
> I have not seen a spectral intensity chart for the medical therapy
> lamps but if they put out a lot of UV in the range below 300
> nanometers I would advise against their use.
From what little I know about these lamps, they put out a lot of
radiation right up to UV C. This is very harmful to the eyes.
Most inexpensive protective glasses and sunglasses have limited
attenuation of UV C. Best avoid these lamps.
Richard
--- Richard Urmonas rurmonas@senet.com.au
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