Re: [photo-3d] Pulfrich at the movies

["John A. Rupkalvis" <stereoscope@xxxxxxxxxxxxx>]

For purposes of quickly and easily accommodating directional change, I have
made up a special Pulfrich viewer.

It consists of a neutral density filter glued to a ring that is attached to
a stick.   It sort of looks like a large lollipop.

Using the stick for a handle, I can hold it up in front of one eye when the
screen action is moving in that direction, and shift it to the other eye
when it goes in the opposite direction.  This works extremely well.

JR

----- Original Message -----
From: "Jim Harp" <matmail2@xxxxxxxxxxxxx>
To: <photo-3d@xxxxxxxxxxx>
Sent: Sunday, October 15, 2000 6:29 AM
Subject: [photo-3d] Pulfrich at the movies


> > It might be fun to see any current movie, then see it again, but
> >wearing  Pulfrich Glasses to uncover the 3D information.
> >
> The ideal way to do this would be with LCD glasses that darkened
> either the left or right lens depending on the direction of the on-
> screen motion.  Perhaps the degree of lens darkening could be varied
> depending on the speed of the motion.  This would make possible
> instant pulfrich 3D "conversions" of any film with a lot of side to
> side camera movement.  I've heard rumors that Sony has a patent on
> such a system.   Jim Harp
>
>
>
>
>