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http://sciencechatforum.com/blog.php?u=28060&sid=178ed2dfbdbfb0903154f2eadb59cc9f

Author:  Odal [ October 18th, 2017, 10:39 am ]
Blog Subject:  Interference, double slit and Newton Rings

The question of interference patters is central to light theory. I would like to share some pictures that show the same patterns in very unusual situations.
The first picture has been taken with the open body of a digital camera, and a laser beam a pen) shining into the body. As you can see, the same patterns appear that are usually associated with constructive and destructive interference see in the double slit experiment, or in the use of two thin plates showing so-called Newton rings.

Image

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