roel_cnc wrote:
> --- In Homebrew_PCBs@yahoogroups.com, "Ben H. Lanmon" <bhleavi@y...>
> wrote:
>
>>>Went to the M.G. Chemicals website
>>>
>>>They list the wavelength at 375nm
>>
>>Sylvania website listed the Blacklite as having a peak output at
>> 356nm
>
>
>
> TL-40/05-from PHILIPS i use workz great older series
> Actinic Lamp
> color/05
> nm:300-460 uvb type is used in many major brands like welisch rapid
>
> now these days dey run under the type/name "cleo"
>
> bit more info
> http://www.eur.lighting.philips.com/int_en/oem/ca/special/segments/bod
> ycare/natural.html
>
> gr Roel
>
Yes, a sun tanning lamp may be great source for photoresist exposure.
Not sure if anyone seen this page on spectral sensitivity of typical
photoresists.
http://www.circuitree.com/CDA/ArticleInformation/features/BNP__Features__Item/0,2133,3647,00.htmlTo summarize, the photoresists have a usable spectral sensitivity in the
range 340nm to 400nm, where peak is around 360 nm.
One thing no one has talked about is what people use for a safe lighting. I
colored a couple of fluorescent tubes with some yellow water based acrylic
paint.