Photoelasticity (Birefringence)

by Joe Zink November. 24, 2018 753 views

Your computer screen produces linearly polarized light. When polarized light shines through a plastic object, it shows a pattern of stress within the plastic from when it was stamped in manufacturing. If you place a polarizing filter on your camera to dim the background light, the patterns change color. This is some cheapo plastic dinnerware sitting on my laptop screen, with a circular polarizer on the camera turned enough to make the background dark.

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Tsao T-F 11 months, 2 weeks ago

Colorful!

11 months, 2 weeks ago Edited
Olga Helys 1 year, 2 months ago

woow
so cool
Like these colors and textures

1 year, 2 months ago Edited
Russell Smith 1 year, 5 months ago

Quite cool thank you for sharing how to achieve this kind of look and the science behind it :)

1 year, 5 months ago Edited
Amisha Shukla 1 year, 6 months ago

Excellent use of optics!! superb

1 year, 6 months ago Edited
Sigrid Strohschneider-Laue 1 year, 6 months ago

Oh, that's funny!
#2 - because it's the most Andy Warhol!

1 year, 6 months ago Edited
Sylvia Warren Replied to Sigrid Strohschneider-Laue 1 year, 6 months ago

I agree! Love #2 - the composition of the forks is awesome.

1 year, 6 months ago Edited
Camellia Staab 1 year, 6 months ago

Very cool Joe and lovely colors smile

1 year, 6 months ago Edited
Andi Saw 1 year, 6 months ago

Supercool! smile

1 year, 6 months ago Edited
Heike 1 year, 6 months ago

Really cool effect Joe. I never thought that it is plastic.

1 year, 6 months ago Edited
Berckmans Peter 1 year, 6 months ago

Cool,nice work

1 year, 6 months ago Edited
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