Different frequencies of “visible light”

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Presentation transcript:

Different frequencies of “visible light” COLOR What is it? Different frequencies of “visible light”

Mystery Shadows

Color Mixing with Light (Color Addition) Magenta RED R + B BLUE R + B + G White R + G B + G Yellow Cyan GREEN

Red and Blue are polarized vertically, and Green is polarized horizontally.

Orientation of Light We will represent light by simply looking at the electric field… even though the magnetic field is still present

Vertical Orientation

Horizontal Orientation

Polarized Light ≡ Light that is of all the SAME orientation Polarization Polarized Light ≡ Light that is of all the SAME orientation

Polarizing Filters http://www.computer-music.com/images/bryce/Don061%20Fence%20Picket%20White%20(posed).jpg

Which direction should this fisherman’s glasses be polarized to see fish better? http://www.mosquitocreekoutdoors.com/cgi-bin/SoftCart.exe/valorium.html?E+scstore ? http://www.flyfishusa.com/newsletter/060103/

D C A B

What color is each light can producing? B C A Green What color is each light can producing? Blue Red DRAW IT!!! http://www.exo.net/~pauld/summer_institute/summer_day6color/color_shadow_2.gif

What Temperature do these seem?

Clifton Bluhm

http://www. gelighting http://www.gelighting.com/na/home_lighting/products/reveal_tour/redecorating_tips.pdf

So, objects appear the color they are because… The objects only reflect particular frequencies (colors) of light

WHITE

RED

GREEN

BLUE

CYAN

MAGENTA

YELLOW

Color Mixing with Pigment (Color Subtraction) Reflects Green / Blue Absorbs RED Reflects Blue / Red Absorbs GREEN What colors would appear when mixed? Reflects Green / Red Absorbs BLUE

Color SUBTRACTION (pigments) Color ADDITION (light) RGB CMYK

http://micro. magnet. fsu http://micro.magnet.fsu.edu/primer/java/primarycolors/colorseparation/

30 meters

http://h0060089ab5de. ne. client2. attbi http://h0060089ab5de.ne.client2.attbi.com/wallpaper/Pics/Penguins%20on%20a%20Cold%20Perch.JPG

Retinal Fatigue

http://www.sporteyes.com/bolleski.htm http://www.erikburd.org/skiing/copper/mountain/page1.html