Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Per,

OceanOptics is the low-cost supplier. I can get you other companies if you
want to spend more money..

For spectral output you typically would measure radiation vs. wavelength
band so you end up with microwatt per nanometer type numbers. Then you need
to define the area of the sensor for the measurement. You might be able to
find a used spectrometer to get proper readings.

Good luck!

Bertho





From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
On Behalf Of Per Mattsson
Sent: Monday, January 23, 2012 02:42
To: Homebrew_PCBs@yahoogroups.com
Cc: Per Mattsson
Subject: [Homebrew_PCBs] UV light sources





Hi guys!

How can one measure the wavelengths, either a graph over the spectrum or
certain wavelengths of a UV-source?
What unit would one use - Watt, Joule?

I have a few colormeters but those are for human visible light intended for
graphics industry. We use candela, cd, or lux for intensity there.

I've found this: http://www.oceanoptics.com/products/usb4000uvvis.asp
"Priced from $3,061" Ouch ....

Next question, what wavelengths are of interest here - different wavelengths
for different materials I suppose?
300nm?

I'm currently curing UV-inked paper with two 160W disco Blacklights but I'm
shure I could do it more efficient with other sources.
The paper let the ink go deep into the material so the UV-lights/leds in the
printers does not really let the ink solidify.

/Per

Per Mattsson - per@... <mailto:per%40permattsson.se> -
+46706524567





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