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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.

Published byGregory Summers Modified over 8 years ago

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Presentation on theme: "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."— Presentation transcript:

1 Color & Vision

2 Parts of the Eye

3 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.

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

5 Primary Light Colors and Color Addition Complementary Colors R + G = Y R + B = MG + B = CR + G + B = W Any two colors of light which when mixed together in equal intensities produce white are said to be complementary colors of each other. Yellow + Blue = WhiteMagenta + Green = WhiteCyan + Red = White

6 Color Subtraction

7 Color Subtraction Practice Red Black Magenta light shines on a sheet of paper containing a yellow pigment. Determine the appearance of the paper. Red Yellow light shines on a sheet of paper containing a blue pigment. Determine the appearance of the paper. Black

8 Pigments

9 Mixing Pigments Pigment One Pigment Two Colors Reflected Color Observed CyanMagenta Yellow CyanYellow Cyan, Magenta Yellow Suppose an object is permeated by a mixture of two or more pigments and illuminated with white light. Complete the table.

10 Mixing Pigments Pigment One Pigment Two Colors Reflected Color Observed CyanMagentaBlue MagentaYellowRed CyanYellowGreen Cyan, Magenta YellowNoneBlack Suppose an object is permeated by a mixture of two or more pigments and illuminated with white light. Complete the table.

11 4 Color Printing

12 Color Shadows – 2 Lights

13 Color Shadows – 3 Lights

14 Ketchup Bottle

15 Retinal Fatigue

16

17 Flag

18

19 The Rose

20

21

22

23

24

25 Black dot

26 Black Dots

27 Elephant Legs

28 Man & Woman

29 Old Woman … Young Girl

30 Vanity

31 Two Faces … Or One?

32 Face or Aleut

33 Book

34 Lines

35 Rabbit Duck

36

37 Spectral Distribution of Sun

38 Scattering

39 Scattering

40 Why is the Sky Blue l Blue Sky – Red Sunset Blue Sky – Red Sunset

41 l http://www.stillmoving.ca/physics/faq/General/BlueSky /blue_sky.html http://www.stillmoving.ca/physics/faq/General/BlueSky /blue_sky.html

42

43

44 Assorted Links l Link Showing Absorption Graph Link Showing Absorption Graph l Smithsonian Link Smithsonian Link

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