Phosphor to reduce flicker?
Posted:
Sun Feb 04, 2007 11:33 pmby Andrew Davie
I was wondering if it might be possible to place a phosphorescent material, say on a glass plate, between the Nipkow disc and the eye. The idea is that the phosphor glow, however slight, would give a more persistant image and thus reduce the flicker apparent to the eye. Is this possible? Has anyone tried it?
Cheers
A
Phosphor to reduce flicker
Posted:
Mon Feb 05, 2007 1:41 amby Stephen
John Logie Baird proposed such an approach in British Patent GB291121 filed 30 November 1926. Such a scheme should work, although for best results the activating light should have a short high-energy wavelength. You could use any of the common glow-in-the-dark plastic sheets that are available as a display screen and use a modulated ultraviolet LED or LED array as the light source for the display.