funWithOptics

  • May 07, 2012
  • 123 Downloads
  • 2 Likes
  • Blender 2.6x
  • Render: Cycles
  • Creator: krabz
  • License: CC-BY
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Description:

Experimenting with a glass lens and a pinhole

The scene consists of

  • a motive (the emitting smiley)

  • a half reflective mirror (in the middle) splitting the light into one part continuing horizontally and one part going upwards

  • a glass lens refracting the horizontal part of the light and focusing the motive on the screen to the left

  • a 'pinhole' camera on top catching some of the vertical light and showing the motive on a translucent screen.

The purpose of creating this scene was simply to test if I could get a sharp projection of the motive through a lens.

Lens pinhole

Comments:

  • Maxpath profile picture
    Maxpath

    its nice! but u only showed us the scene, why not also show us the result of this " Experiment with Optics " ? if u did then i dont get it :S

    Written May 07, 2012
  • krabz profile picture
    krabz

    Hi, thanks for the feedback. I guess I was a little bit short on the scene description. I have added some more info.

    Written May 07, 2012
  • Maxpath profile picture
    Maxpath

    nice nice work! how did u figure all that out?

    Written May 07, 2012
  • crins profile picture
    crins

    !Nice! Now we can make an analog picture.. in ... eh 3d... :) Impressive to see that this also works the way it 'should'. Done with cycles?

    Written May 08, 2012
  • krabz profile picture
    krabz

    Done with cycles yes.

    Written May 08, 2012
  • wax profile picture
    wax

    Nice experiment I love it. And will try to render it with another renderer (thea render).

    Written May 08, 2012
  • krabz profile picture
    krabz

    Cool! There is probably room for some improvement by fine-adjusting the distance between the lens and the display. You might get it sharper. Takes a little time though, since you don't get the immediate feedback you would in the real world. :-)

    Written May 08, 2012
  • wax profile picture
    wax

    Here are 3 attempt made within Thea render. I've used some global medium for giving a little foggy atmosphere. https://lh3.googleusercontent.com/-SLPZbVvn1II/T6twBQPyiwI/AAAAAAAAP84/ln2h1aWKuuI/I/UUUU.jpg https://lh6.googleusercontent.com/-RluYBXck5YY/T6mRgmiG0aI/AAAAAAAAP84/jz9eQQ3jJb8/I/TON.jpg https://lh4.googleusercontent.com/-HxghG-mUiSc/T6rVy7IiwnI/AAAAAAAAP84/HT8u5eBKdpw/I/TON2.jpg

    Written May 10, 2012
  • krabz profile picture
    krabz

    Very nice!
    By the way, I forgot enabling smooth shading on the lens. I guess interpolated normals will give a sharper projection.

    Written May 10, 2012
  • wax profile picture
    wax

    I think I've smoothed the lens in fact. Anyway I've tried with a 3D object instead of just a plane. I've used an famous helicopter model you can find here i think.

    https://lh4.googleusercontent.com/-uZvFUsYHmF8/T60bkZ11HHI/AAAAAAAAQAY/axHaZcURzWw/s512/KK.jpg https://lh6.googleusercontent.com/-23sMgKlCq8k/T60cPGHYhHI/AAAAAAAAQAY/lVfO0NfiD94/s512/HeliAnim_0000.jpg

    Work not so bad, but difficult to have the "good focus".

    Written May 11, 2012
  • wax profile picture
    wax

    And with an animated helicopter that give nice results to me : http://www.youtube.com/watch?v=vIzipLAJ85w&feature=player_embedded&hd=1

    Written May 14, 2012
  • krabz profile picture
    krabz

    Hah! That was really cool! Next step: a red lens and a blue lens, and some 3d glasses :-)

    Written May 14, 2012
  • wax profile picture
    wax

    Yes good Idea. Here's are some more experiment. This time with a skull and a little bit of difference. I cannot stop to play with it ^^

    https://lh6.googleusercontent.com/-Xw5j_5kJmEQ/T7Fx0lieDOI/AAAAAAAAQMc/-4Ui4SdUY_0/I/MERDOS.jpg https://lh4.googleusercontent.com/-MEqiQD77vQo/T7IAZznyHsI/AAAAAAAAQNs/H9LQnguoPvk/I/Other.jpg https://lh5.googleusercontent.com/-vHjdbFDnvd8/T7FyGgEl_HI/AAAAAAAAQMc/EVpaKhqpoQ0/I/Crane.jpg https://lh3.googleusercontent.com/-3C-fmjY3oL4/T7FyKYkkWtI/AAAAAAAAQMc/6z9hgNiomYA/I/PARTA.jpg https://lh4.googleusercontent.com/-IFMONuQJRJ8/T7F0PX1dF6I/AAAAAAAAQMs/IATd3x0h8VA/I/OOOK.jpg

    Written May 15, 2012
  • krabz profile picture
    krabz

    Scary stuff :-)

    Written May 15, 2012