Homebrew PCBs

Spectrum should be pretty easy with diffraction through a prism.  It
doesn't seem that you need enormous accuracy or precision.

My concern is measuring power with some degree of accuracy to predict
exposure times.

On 1/23/2012 1:41 AM, Per Mattsson wrote:
>  
>
> 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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Rich Osman;  POB 93167; Southlake, TX 76092 (Near DFW Airport) 






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