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Fundamentals of Imaging Science
Quiz 5
Complete this simple diagram of a B&W cathode ray tube display system,
assuming the viewer is at the right of the tube. Be sure your diagram includes and
has labels for the following components: vacuum tube, electron gun, electron
beam, anode, deflector plates, and phosphor screen.
6. Which statement best describes the role of the liquid crystals in a liquid crystal
display (LCD)?
a) The liquid crystals emit light in direct response to an applied voltage.
b) The liquid crystals change the direction of polarization of light in direct
response to an applied voltage.
c) The liquid crystals transmit light in direct response to an applied voltage; the
larger the voltage, the greater their transmission.
d) The liquid crystals change phase (from solid to liquid) in direct response to an
applied voltage.
7. (True / False) The way that we capture, store, view, and print color digital images is
based on the way that humans perceive color.
Because we have three kinds of cones, every color that we can see is made up the
following three colors:
a) red, blue, and yellow
b) blue, orange, and green
c) blue, violet, and red
d) red, blue, and green
9. List the three subtractive primary colors that can be produced while overlapping red,
green, and blue colors.
10. The 3 primary colors that additively combine to produce white are: