Laser spots


by Yoni
Tags: laser, spots
Yoni
Yoni is offline
#1
Mar4-08, 04:33 PM
P: 51
Why is it that when looking at a laser (not directly, but from an angle) it is possible to see a pattern of spots which flicker around randomly?
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dst
dst is offline
#2
Mar4-08, 04:42 PM
P: 389
http://en.wikipedia.org/wiki/Speckle
Yoni
Yoni is offline
#3
Mar4-08, 05:03 PM
P: 51
Thanks dst.
In the site above it says: "The speckle interference pattern forms on your retinas regardless of where your eyes are actually focused". How can this be? Is this a cause of low divergence?


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