The human vision is a complex notion which involves the simultaneous interaction of the eyes and the brain through neural networks. One approach that defines the exceptional ability of the human eye is stereoscopy or stereoscopic imaging, or the technique which allows the eye to perceive three-dimensional images with flat objects through illusion. The brain provides each eye with distinct optical information which results in the distortion of the sense of sight. Three-dimensional eyeglasses create the illusion of three-dimension space by filtering the neural signal that carries information from the eyes.
There are three types of three-dimensional eyeglasses — Anaglyph 3D Glasses, Polarized “Passive” 3D Glasses, and Active 3D Shutter Glasses. In cinemas, the management provides the anaglyph and polarized glasses for 3D movies, while polarized and shutter glasses are for home theaters.
How do manufacturers produce three-dimensional eyeglasses? For creative and tech-savvy individuals, how can they create their very own 3D glasses? Below are the materials needed and the step by step instructions on how to create simple three-dimensional eyeglasses.
- Oak Tag or poster board
- Use an old pair of glasses frame if available
- Transparent tape or glue
- Basic template patterns for eyeglasses
- If using a poster board
- Red and blue acetate sheets
- Use ziplock bags as lenses if not available
Primary Steps on 3D Eye Glass Making
Step 1.1 For Oak Tags
Cut out the sample template pattern for the 3D eyeglasses and attach it on the sturdy oak tag board for outlining the actual eyeglass. Trace the design on the board and cut the glass frame and the eye holes.
Step 1.2 For Old Pair of Glasses Frames
The most convenient option for an eyeglass frame is an inexpensive item fromdrugstores or an old pair with the lenses removed.
Step 2: Cut Out Clear Plastic for the Lenses
Some clear plastic options are cellophane, acetate sheets, and overhead transparency sheets for projectors. Cut the plastic bigger than the holes in the eye frame so that there is sufficient room for the tape on the sides.
Step 3: Tape or Glue the Red and Blue Acetate Sheets
Cut blue and red acetate according to the size of the eye holes and tape or glue the red and blue color on the left and right, respectively, to cover the holes. Users should take note not to put tape of glue on the acetate sheets which can cause sight blockage.
After these series of steps, users can try out the new 3D eyeglasses to view images. If it does not work on TV or computer screens, adjust the hue and tint of the monitor until the blue screen disappears and a three-dimensional image appears.