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green reflection from projector

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Maxim Moisseev
green reflection from projector
on Mar 21, 2010 at 8:44:03 pm

Hi!
Haven't found a suitable forum for this question. Hope you can help me.
Many times I encounter the same problem - white light from videoprojector lamp, when reflected from black surface, becomes green! But only from specific angle. If I move 30 degrees right or left, reflection becomes white again.
This is disturbing my brain. What can I do again this green light? WHY is it green?

http://www.transscreen.ru - clear projection films and touchscreen.


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Hunter Mossman
Re: green reflection from projector
on Mar 22, 2010 at 5:38:03 pm

You may want to try posting this in the Corporate Video section.

Good luck!

Hunter Mossman
Director of Photography
http://www.huntermossman.com


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Mark Suszko
Re: green reflection from projector
on Mar 22, 2010 at 8:44:09 pm

Is the black screen really black? And why is it black? I suspect this is a polarization effect. Also, white is relative and depends on the white balance you set.


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Maxim Moisseev
Re: green reflection from projector
on Mar 22, 2010 at 8:52:27 pm

I mean any light color close to bright white, reflecting from black surface (plastic, dark glass, chair varnish) becomes green.

http://www.transscreen.ru - clear projection films and touchscreen.


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