Re: led as illuminator


"Malcolm Stewart" <malcolm_stewart@xxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:455862ee$0$21145$88260bb3@xxxxxxxxxxxxxxxxxxxx

Why not use a (much) lower power LED? I've found that ordinary
brightness "white" LEDs properly sited with regard to a condenser
system give adequately bright light.

Unfortunately my eyes need a surplus of luminosity: too many years
passed few inches far from an old type monitor, to such an extent that
actually I can't read cartaceous, but only on-the-screen documents.

The difficulty I've found is getting the LED exactly where the
filament of the lamp used to sit. (B&L StereoZoom, Vickers M12
metallurgical, etc.)

Well, I already had this difficulty on the brain, and was conceiving
various machineries to properly place the led :)


.