Hi Peter,

At 06:10 PM 12/9/98 +0000, you wrote:
>The polarization direction on polarizers need not follow an axis of the
>physical device. If it is 45 degres and you flip it it becomes -45 degrees
>and inverts the display luminance. q.e.d.

Of course, you are right. I don't know why I didn't think of that case. In
fact, if it is at 45 deg, flipping it over is the same as rotating it by 90
deg.

Thanks,

Sean

+-------------------------------+
| Sean Breheny                  |
| Amateur Radio Callsign: KA3YXM|
| Electrical Engineering Student|
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