Download - Visible light
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Visible light and Color
+What is an observation?
Something you see or notice
+Look around the room with the lights on and off….
Light ON Light OFF
+What’s the difference?
Objects seem brighter and in more color when the light is on. Dark rooms lack color and detail.
+What does it mean to be illuminated?
An object reflects light
+What types of light are there?
Incandescent, fluorescent, neon, sodium vapor, tungsten, halogen
+What does incandescent mean?
WHITE HOT – filament gets hot
+What is a filament?
A small piece of coil that glows when it gets hot
+What does all color depend on?
How it reflects and refracts light
+You see….
An objects color based on what light it reflects and absorbs
+What about Black and white?
Black White
+Why can’t you see well at night?
There is no light to reflect off objects so your cones are not used at night
+What about colored light?
An object will look different colors based on the color of light because different colors are reflected or reflects into your eye
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+What is a prism?
A triangular shaped translucent object which reflects light
+Picture time!
+Picture time!
+Picture time!
+Picture time!
+What is Visible light
Shorter wavelengths and higher frequencies than infrared…
Colors ROYGBIV
+Wavelength
Red shortest
Violet longest