COLOR by huanghengdong

VIEWS: 22 PAGES: 4

									                                 COLOR
             PHYSICS IS PHUN - March 2008
S    Welcome
D    DEDICATION to Dan
S    Title Slide and thanks
S    There is almost an infinite variety of color….
S    Black
             Comment: We will look at color and the ways in which colors can be mixed, experiments
             in color vision, and answer the all-important question: "What is greener than green?"

Spectral Colors:
D    N1-01 PRISMATIC SPECTRUM OF WHITE LIGHT - POINT SOURCE
     Comment:What “spectral” means
2S   Comment: Can have “non-spectral” colors
S    Black

Additive Color Mixing:
S    ADDITIVE COLOR MIXING
     Q: What are the three primary colors for lights? (red, green, blue, yellow)
             Vote by raising hands.
     Comment: Same as color sensitivity of cones in retina.
D    N3-02 ADDITIVE COLOR MIXING – PROJECTORS
S    Additive Color Mixing – colors
     Comment: Making white with three primary colors only approximate
     Comment: Primary colors - RGB - define complementary colors - YCM
                    Same as negative primary colors
     Comment Yellow or Cyan can be either spectral or non-spectral
                    Magenta only non-spectral
                                            (page 2)

Additive Color Filters and Color Mixing:
S   Additive Color Filters
D   N3-21 ADDITIVE FILTERS AND THEIR SPECTRA
S   Chromaticity Diagram (color)
S   Chromaticity Diagram with data (leave on)
D   N3-05 COLOR MIXING VIA CHROMATICITY DIAGRAM
S   Color Tree - Chrominance around, saturation out, luminance up/down
S   Color Tree - cut for one azimuth
S   Chromaticity Diagram (color)
D   N3-04: POSITIVE COLOR MIXING IN COLOR TV
S   Chromaticity Diagram (color)
    Comment: NTSC video uses RGB, S-video uses chrom/lum
    Comment: Desaturated colors obtained by adding third primary or
           by adding some amount of white



Subtractive Color Mixing and Filters:
S   Subtractive Color Filters
D   N3-22 SUBTRACTIVE FILTERS AND THEIR SPECTRA
    Comment: Subtractive primary colors are complements
           of additive primary colors for lights
D   SERIES SUBTRACTIVE FILTERS
S   Subtractive Color Mixing – colors
S   Color Filter Transparencies
D   N3-31 COLOR SEPARATION TRANSPARENCIES
    Comment: similar to all color film
    Comment: Everything but lights is subtractive, eg dyes, pigments, paints, food coloring
                                               (page 3)

Color Perception
S      Spectrum photograph
       Realization limits in spectra and rainbows due to:
              Errors
              Attempts to extend spectrum beyond visible
              Production of spectra using primary colors
              Limits of four-color printing
4S     Partially correct spectrum representations
S      Rainbow photograph
2S     Partially correct rainbows
S      OPPONENT PROCESSING THEORY OF COLOR VISION
D      O3-01 COLOR PERCEPTION IN SHADOWS - SLIDE PROJECTORS
              Use R, G, B with white light
              Comment: Basis for Opponent Processing Theory of color vision
              Comment: Colors same in large range of light conditions (unlike film)
              Comment: BBC Film: Colorful Notions


D      O3-22 BIDWELL'S DISC


D      O3-03 LAND EFFECT


Link   O3-12 COLOR BLINDNESS TESTS WITH VIDEO PROJECTOR
3S     DEMONSTRATION OF COLOR VISION TESTS


2S     O3-04 GREENER THAN GREEN


S      GOODBYE
        PRE-SHOW DEMONSTRATIONS

    COLOR MIXING USING COMPUTER
N3-01 ADDITIVE COLOR MIXING OF LIGHTS
N3-04 POSITIVE COLOR MIXING IN COLOR TV


N3-42 COLOR MIXING IN PRINTER - CHART


N3-09 COLOR THEORY SLIDE


N3-24 FILTERGRAPH
N3-25 SERIES RED FILTERS


O3-21 BENHAM TOP
O3-22 BIDWELL'S DISC


O4-06 OPTICS OF A GLASS ROD


M8-01 POLAROIDS AND KARO SYRUP


L6-33 STRING MODEL - CHROMATIC ABERRATION
O1-21 CHROMATIC ABERRATION IN EYE
L6-34 OPTICAL BOARD - CHROMATIC ABERRATION


COLOR WHEEL DEMONSTRATIONS

								
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