[Tig] "Prysm" display technology

Bob Friesenhahn bfriesen at simple.dallas.tx.us
Thu Jan 14 21:18:53 GMT 2010

On Thu, 14 Jan 2010, Mark Wolforth wrote:
>> The main differentiating issues will be with laser beam energy intensity
>> (more energy allows use of quicker phosphor), phosphor response time,
>> and refresh rate.
> Unlike in a CRT, the phosphor will be fluorescing when stimulated by the 
> laser.  In a traditional CRT light is principally generated by 
> phosphorescence, a process whose "off" stage follows a Poisson distribution 
> (which someone who's set up a CRT based telecine will know as afterglow).

Do you have a publically-available technical reference you can refer 
to which supports this?  Why do you think that one principle takes 
effect vs another?

Why would it be that phosphor would behave differently when bombarded 
by electrons rather than when being bombarded with (similar energy 
intensity) photons in the ultraviolet range?  This wikipedia page 
suggests that the principle is the same via the very first sentance:


   "A phosphor is a substance that exhibits the phenomenon of
    phosphorescence (sustained glowing after exposure to energized
    particles such as electrons or ultraviolet photons)."

Note that the lasers used are in the ultraviolet range.

Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

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