| Author | Message | ||
     ItsikW Rating: N/A |
I need to know the polarization axis orientation of linearly polarizing standard binoculars. Suppose that we define the polarization axis direction as the polarization direction of incident light for which the transmission of the polarizer is maximal. When the binociulars are worn in normal upright position, are the axes oriented like / \ or like \ /? | ||
| John Billingham Rating: N/A |
Pola directions???? Let me answer your question with another! What axes do you use for "Stereo-Bright" I have looked in all my stereo books, and none state the stereo slide convention definitively! ( except that it is an angled orientation!) John Billingham | ||
| ItsikW Rating: N/A |
Yes, John, maybe there is no convention. This would be most surprising, there certainly should be one. Sergio checked his glasses and told me they are \ / configuration. On the other hand, my glasses seem to be / \ configuration, but I am not 100% sure. In practice the projection system can be always aligned to fit given glasses, including StereoBright. A problem may arise, of course, if in the audience there are glasses of different orientations. Itsik | ||
| John Billingham Rating: N/A |
I have run into one exception, but all the commercial"pola' glasses that I have are oriented the SAME way, the problem here is terminology. all the inately polarized laptop screens that I have seen are oriented the same . Perhaps as a "constant" you could say which eye sees "black" using your pola glasses when viewing such a laptop screen? On ALL my lcd screens , with all (but one ) pair of my pola glasses, my LEFT eye sees "black" it is rumoured that some Imax and/or Disney pola shows use a "horizontal/vertical" orientation, rather than angled. So, Itsik, given my observations, which slanted lines would describe the 'norm" ??? best Wishes, John Billingham | ||
| ItsikW Rating: N/A |
Andrew Woods in his SD&A article (SPIE proceedings viol. 4297, 2001) shows a drawing of polarized glasses with \/ orientation. He claims that this is the "defacto standard orientation for linear polarised 3D glasses". Even with this claim there is an ambiguity, because Andrew does not say explicitly whether he refers to the tramsnitting or to the blocking axis of the polarizer. Obviously, if he refers to the blocking axis, then the orientation would be /\ in my definition. I have the honor to contribute to the confusion even more. In my glasses (unknown manufacturer) I see dark in the RIGHT eye in five different LCD monitors I have tested (Hyundai, Mag and LG). However, I see dark in my LEFT eye with my Compaq Presario 1700 laptop! So, the havoc has spread to the LCD monitors. By the way, just for curiosity, I inspected my AE2000 goggles. They appear to be \ \! Itsik |
