Stereoscopes in the 1800s were one of the earliest forms of 3D imaging technology, using two images to create the optical illusion of depth. Later technologies like anaglyph and polarized 3D developed new methods for the human eye to perceive 3D images. To film 3D movies, two cameras mounted together capture scenes from slightly different angles to mimic binocular vision and allow the illusion of 3D when viewed with the proper glasses or display.

1. Do you know your 3D history?

3. Stereoscopy Stereoscopes (also known as stereopticons or stereo viewers) were a popular form of entertainment during the 1800s. Stereoscopes are one of the earliest forms of 3D imaging technology . These viewers allowed users to perceive a still image in “3D” by creating an optical illusion. Image credit: http://www.flickr.com/photos/chrskovgaard/2730987065/

4. Looking through a picture window Image credit: http://digital.nypl.org/dennis/stereoviews/index.html

6. Anaglyph Image credit: http://www.flickr.com/photos/elbragon/4597068522/in/photostream/

7. Polarized http://www.flickr.com/photos/best2buygames/5113176533/ http://www.empiremovies.com/2009/12/09/avatars-imax-3d-poster/

9. References Sniderman, Z. (2011, February 7). How does 3D technology work? Retrieved from http://mashable.com/2011/02/07/how-does-3d-work/ Stereoscope . (n.d.). Retrieved from http://courses.ncssm.edu/gallery/collections/toys/html/exhibit01.htm