1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Laser spots

  1. Mar 4, 2008 #1
    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?
  2. jcsd
  3. Mar 4, 2008 #2


    User Avatar

  4. Mar 4, 2008 #3
    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?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook