Color & Vision. Parts of the Eye l 3 types of cones in retina l Each responds more strongly to wavelength for which it is named l As the cones are stimulated.

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Presentation transcript:

Color & Vision

Parts of the Eye

l 3 types of cones in retina l Each responds more strongly to wavelength for which it is named l As the cones are stimulated in different proportions, our visual system constructs the colors we see. Cone Response

Primary Colors l Red l Blue l Green

Appearance of Color

Complementary Colors l When two of the three additive primary colors are combined: l Red + Blue = Magenta l Red + Green = Yellow l Blue + Green = Cyan l Two colors that combine to produce white are called complementary l Magenta + ? = White l Yellow + ? = White l Cyan + ? = White

Complementary Colors l When two of the three additive primary colors are combined: l Red + Blue = Magenta l Red + Green = Yellow l Blue + Green = Cyan l Two colors that combine to produce white are called complementary l Magenta + Green = White l Yellow + Blue = White l Cyan + Red = White

4 Color Graphics

Color Subtraction

Pigments – Color Subtraction

Color Links l Colors of Light Song Lyrics Colors of Light Song Lyrics l Color Mixing – Truscio Color Mixing – Truscio l Color Tutorial – Jewitt Color Tutorial – Jewitt l Physics Classroom – Color Physics Classroom – Color l Physics 2000 Physics 2000 l Color Java Applets Color Java Applets l Ishihara Test for Color Blindness Ishihara Test for Color Blindness

Retinal Fatigue

Flag

The Rose

Black dot

Black Dots

Elephant Legs

Man & Woman

Old Woman … Young Girl

Vanity

Two Faces … Or One?

Face or Aleut

Book

Lines

Rabbit Duck

Spectral Distribution of Sun

Scattering

Scattering

Why Is the Sky Blue? Why Are Sunsets Red? l /blue_sky.html /blue_sky.html

Absorption of Light by Water l Link Showing Absorption Graph Link Showing Absorption Graph

Homework l Homework 2 l Read chapter 27