Re: [Phys-l] Physics problem of 3D presentation

[Bernard Cleyet <bernardcleyet@redshift.com>]

On 2011, Dec 05, , at 21:00, John Clement wrote:

> It just occurred to me that you may have been using active glasses which do
> have linear polarization.  LCD monitors produce polarized light and the
> active glasses go black if you tilt your head 90 degrees.  I have a pair of
> active glasses which worked well with an old fashioned monitor, but ate
> batteries by the gross. 


I must remember to return w/ a 1/4 plate (or two) and a lin. sheet.   The glasses appeared to be just sun glasses.

bc will likely forget, and doesn't know where he hid his 1/4 wave sheets.