| http://www.w3.org/ns/prov#value | - The unwanted wavelength components are removed by mirrors M0 and M3 leaving only the three red 86, green 87 and blue 88 object beams to be used to create the hologram. (Of course, colors other than red, green and blue can be used as long as they are complementary colors which are used to form white.) Thus far only three zone plates have been created on the photographic plate 89.
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