Put your 3D glasses on now…

The red goes on your left eye.

Red Cyan 3D Glasses• Overlapping two slightly

different images of opposite colors can produce a 3D image. Your brain will combine the images, creating a 3D effect.– The red filter only allows red

light through– The cyan filter allows blue and

green light through

• Rotating Brain!

You may remove your 3D glasses now.

Color Vision

Color Vision Deficiency / (Color Blindness)

• About 0.4% of women and 8% of men are affected by some type of color blindness

• The most common type of color blindness is a form of red-green color blindness called deuteranomaly. This means that the green cones of the eye are sensitive to “incorrect” wavelengths, affecting perception of the colors green and red.

• People can also have absent or non functioning green cones, causing a more severe form of red-green color blindness.

• Less commonly, people can be blue-yellow color blind.• Very rarely, people can have monochromacy, and only see in

black, white, and gray.

8 (3 if R/G CB) 5 (nothing if R/G CB) 7 (nothing if R/G CB)

15 (17 if R/G CB) 74 (21 if R/G CB) 29 (70 if R/G CB)

12 (everyone) 3 (5 if R/G CB) 73 (nothing if R/G CB)

16 (nothing if R/G CB) 45 (nothing if R/G CB) 5 (2 if R/G CB)

6 (nothing if R/G CB) 8 (nothing if R/G CB) 25 (everyone?)

56 (56 if R/G CB) 5 (2 if R/G CB) 2 (nothing if R/G CB)

Pink and purple lines Blue/green line Orange line

Peach line Sailboat Box & Circle

Retin

alFatigue

Polarization• Light travels as a transverse wave, with the electric

and magnetic fields oscillating perpendicular to the forward motion of the wave

• Light from the sun, from a lamp, or from a candle is all unpolarized– Unpolarized light oscillates in many planes– Polarized light only oscillates in one plane

Polarization• Polarization occurs when you take unpoloraized light

and make it polarized• Using a polarizing filter (or Polaroid) absorbs some of

the incoming light, reducing the amount or intensity of light passing through the filter