[chbot] LED displays coloured filters

[Spencer Travers]

Another option is to use theatre light gels. They are also called filters.
You could try the Light Site in Christchurch. I have seen sample swatch
books with hundreds of gels, each provided with a reference transmission
curve.

On Jan 17, 2017 13:59, "Charles Manning" <cdhmanning at gmail.com> wrote:

Coloured cellophane is available at most craft shops and stationery shops.

If one layer doesn't work, try two or more!


On Tue, Jan 17, 2017 at 12:53 PM, Volker Kuhlmann <list0570 at paradise.net.nz>
wrote:

> Thanks for all the tips! Haven't yet followed them all up.
>
> The thickness, weight, and difficulty in getting tinted perspex makes
> that not my preferred option, which is using coloured cellophane. I
> posted in the hope someone had already worked out where in town to get
> that, but I'll post back in due course.
>
> A quick test with a (far too small) photo/flash colour foil piece says
> it can be very effective - provided I find the correct colour. I've
> ordered more. Polarised film looks a little more difficult because all I
> can find is dumbphone screen protectors that are also labelled
> polarizing. I'll still try.
>
> Thanks,
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
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