We've made from blue&transparent plexiglas ! :)
The beam at 15m was about 0.5...0.7m diameter but anyway you may catch
one maxim of signal.

On 10/6/06, Alex Harford <harford@gmail.com> wrote:
> Where did you get the lenses from?
>
> On 10/5/06, Vasile Surducan <piclist9@gmail.com> wrote:
> > I've did it at 15m with blue plastic lenses, 930nm LED and any
> > standardised 36-38KHz receiver.
> > Looks much more than 24 x 2.54cm = 60cm
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