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Structured light and slide projector

Problems, solutions and discussion about scanning with a video projector and stripe patterns.

Structured light and slide projector

Postby florin.topala » Fri Jul 31, 2009 2:21 pm

I am wander if we use an LCD (from Nokia 3310) as a slide in a slide projector ... it will be usefull or not?? I am tring to develop such a projector (optical parts form an old slide projector and an LCD)
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Re: Structured light and slide projector

Postby MagWeb » Fri Jul 31, 2009 3:06 pm

Hi Florin,

think a mobile LCD will have not the needed resolution - think at least VGA will be needed to use it with DAVID .
Do you know the resolution of the Nokia screen?

Gunter
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Re: Structured light and slide projector

Postby florin.topala » Fri Jul 31, 2009 3:45 pm

the resolution is 84x48 pixels http://www.amontec.com/lcd_nokia_3310.shtml
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Re: Structured light and slide projector

Postby MagWeb » Fri Jul 31, 2009 3:53 pm

So it is too poor to project a moving (animated) line. Maybe the line is thin enough to move the whole projector as if it were a static slide?

Gunter
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Re: Structured light and slide projector

Postby florin.topala » Fri Jul 31, 2009 6:07 pm

Hi MagWeb,

Thank you for your fast response :)


I think I was't cealr enough. I don't want to use this for an animated line

I want to use this LCD to generate patern fringes ... but I don't understand what is the relation between lines (dimensions) and if I have enough lines to do the 12 images to project
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Re: Structured light and slide projector

Postby MagWeb » Fri Jul 31, 2009 11:32 pm

oouhps - I didn´t notice the topic's title - sorry

anyhow, the resolution of your display isn´t enough to project the pattern sequence of the twelve images - sorry - especially the four fringes patterns (sin wave stripes) which have to be sin waves with gray zones between the limits.

Gunter
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Re: Structured light and slide projector

Postby florin.topala » Sat Aug 01, 2009 3:49 pm

I think I have enough pixels to generate streight lines not gray lines (it is a monocrome LCD)
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