Stereoscopy makes the eyes "unhook" from their usual focus, and have the left eye focusing on the right image, while the right eye focuses on the left image. Some examples of how this can be achieved include;
- A viewing device called a Stereoscope.
- Colour filtration (anaglypics)
- Lenticular Screens
- And even simply training the eye to focus on the correct areas of the image.
A Stereoscope is a device that you hold in front of your eyes to distort what direction they are seeing.
Colour filtration is when you take the left image and the right image, and make them different colours, then you wear special coloured lens glasses that tells your eyes which side to focus on.
Lenticular Screens use small cylinders in columns rather than a flat surface as a display, this makes it so that your eyes see different parts of the cylinder and allows a 3D image to be viewed.
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