Re: [Phys-l] 240 and 600 Hz

["John Clement" <clement@hal-pc.org>]

The 3D problem is also being solved by having sets that use circular
polarization the same as in the movie theaters, so the high refresh rate may
not be necessary for 3D.  There are also experimental sets that sense the
presence of people and deliver images to each person personally so everyone
can have glasses free 3D.

Some people find the time sliced 3D to cause headaches, while the polarized
3D does not.  The headache problem is reduced by higher refresh rates.

Having been a 3D photographer since the 1950s, and the owner of 4 3D
cameras, I do keep track of some of this technology.  Of course only my
digital 3D camera is now viable because the last long lasting low grain
slide film is gone.

John M. Clement
Houston, TX 

> 'Modern' TV's also want to be 'ready' for whatever 3D 'stuff' may be 
> coming down the pike.
>
> The right eye image and the left eye image BOTH need to be smooth.
>
>
> At 11:00 AM -0400 4/18/11, ludwik kowalski wrote:
> > Thank you Rick. Someone also told me that
> >
> >
> > Another thing I learned several days ago was that the signal 
> > delivered by the cable company has the refreshment rate of 60Hz. 
> > Higher frequencies are created in TV sets, according to chosen 
> > setting.
> >
> > Ludwik
> > > ----- Original Message -----
> > > From: "ludwik kowalski" <kowalskil@mail.montclair.edu>
> > > To: "Forum for Physics Educators" 
> <phys-l@carnot.physics.buffalo.edu>
> > > Sent: Thursday, April 14, 2011 4:55 PM
> > > Subject: [Phys-l] 240 and 600 Hz
> > >
> > > > Some new High Definition TV sets  are designed for very high image
> > > > refreshment rates, such as 240 Hz and even 600 Hz. This seems to be
> > > > unnecessary; the refreshment rate for traditional movies 
> has been 30
> > > > Hz. Because of this I think that anything above 60 Hz is 
> just waste of
> > > > money. Do you agree?
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