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What is color? (physically) |
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- A perception created in the brain as a result of stimulation of the retina by light waves of a certain length. - The intrinsic physical properties of specific objects to reflect and absorb light waves of a certain length |
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... derived from light ... IS RELATIVE |
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Where are light receptor nerves located in the eyes? |
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There are two, rods and cones, and they are both located in the retina. |
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Three types of cones exist, one for each photo receptor field (color) |
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The healthy human eye can see _________ colors. |
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Caused by a deficiency in cones |
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Visible Spectrum of Light |
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Definition
Light at Different wavelengths appear as different colors to the human eye. - Red, 650nm -Orange - Yellow, 570nm - Green, 520nm - Blue, 480nm - Indigo - Violet, 440nm |
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Light that is not visible |
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- X-rays, microwaves, vhf - The eye cannot register UV or infrared which fall within the visible light spectrum |
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The quality that differentiates one color from another |
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The amount, or percentage, of a particular hue in a color mixture |
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The relative lightness or darkness of a color (See tint and shade) |
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a color of high value (close to white) |
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a color of low value (close to black) |
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Primary Colors of PIGMENT |
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Secondary Colors of PIGMENT |
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The Primary Colors of LIGHT |
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The Secondary Colors of LIGHT |
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Amber (Yellow), Magenta, Cyan |
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The absence of light/color |
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- Any two hues that, when combined, yield white in light or black in pigment - Colors that are opposite on the color wheel |
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Colored Filters allow only their own hue to pass through; all other wavelengths are absorbed or reflected |
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Several individual hues are transmitted to the eye, added together, and interpreted by the brain |
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Colors that make you feel warm (associated with the sun); red, yellow, orange |
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Colors that make you feel cool (associated with cold or night); Blue, green, purple |
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Colors that when placed with a cool color appear warm; or when placed with a warm color appear cool. Amber, Lavender |
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Gelatin... FOR REAL! We don't use real gelatin anymore. |
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Plastic that Gels are made from |
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Definition
Still called gels, but are either mylar or polyester |
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Only real use is in roundels used in striplights, pretty rare these days |
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Glass Covered with film. Instead of absorbing the unwanted wavelengths of light they are reflected. They are awesome... and really expensive. |
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