In article AAf%n.247296$_m6.112960@hurricane, Gary
writes

"Ian" wrote in message
...
In message , Kennedy McEwen
writes
In article Dj2%n.225175$k15.24811@hurricane, Stephen
writes
"Gary" wrote in message
news:6HZ_n.180653$m87.37557@hurricane...
I wonder why there aren't any after market 3D TV converters.
Surly any 1080P TV could display in HD 2 images sequentially and a
transmitter like the Sony one would work. with any TV. It could be
added
to the HDMI line in and possibly need a knob on it to adjust the
sync when
first installed.

I guess the problem is that it's a 50 Hz refresh rate on the HDMI input.
Even if the TV uses a much faster refresh internally, an external
converter
can't access the video path at that stage. So you're stuck with 50
Hz which
would have to be halved to 25 Hz for each eye. That would mean
intolerable
flicker and probably give people epileptic fits.

Film runs at 24 Hz so it is totally feasible to run at 25 Hz

Film runs at 24 frames per second, but it is projected at either 48 or
72 flicks* per second depending on the projector mechanism specifically
to avoid "intolerable flicker" at 24Hz.

* Each frame of film is exposed in the gate by two or three flashes from
the projector lamp.
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's ****ed.
Python Philosophers (replace 'nospam' with 'kennedym' when replying)