10 Nov
2011
10 Nov
'11
2:29 p.m.
On Thu, 10 Nov 2011 13:20:13 -0800
Christian Kennedy <chris at mainecoon.com> wrote:
I'd sort of expected that these things worked as
suggested -- by irradiating a phosphor screen -- but I had one arrive damaged in shipment
that put an end to that notion. What I thought was a phosphor screen was just a diffusor
lens; the guts of the thing was a mix of colored SMD LEDs mixed with white XR-Es, so for
(these admittedly bulky) things they seem to have smoothed the spectrum by playing with
the emitter mix.
Thats a common way to get a good CRI. What you describe as
"phosphor
screen" is called "remote phosphor".
The LR6 modules are huge, bulky things
Huge and
bulky = large surface = good cooling...
Bottom line is you can get LED replacements for
certain classes of
incandescent lighting that has good color performance, but it's
not cheap.
Yes.
--
\end{Jochen}
\ref{http://www.unixag-kl.fh-kl.de/~jkunz/}