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!

I What is the max magnification of 0.5mm film lens.

  1. Jul 17, 2017 #1
    What is the max magnification of 0.5mm film lens.

    Film is just on the top of flat object(Paper, Display, Picture, etc).
    If Fresnel lens is made on top of the film, Can I magnify the object?

    Thank you.
     
  2. jcsd
  3. Jul 17, 2017 #2

    sophiecentaur

    User Avatar
    Science Advisor
    Gold Member

    The way a 'film' lens depends on the radius of curvature of the lens from which it was developed so you cannot have a definitive answer to your question. See this link. which shows how a spherical lens can be substituted with a stepped (thin) lens.
    There is a reference to fresnel page magnifiers in this link. and the magnification formula is there.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: What is the max magnification of 0.5mm film lens.
  1. What is a lens (Replies: 0)

Loading...