| http://www.w3.org/ns/prov#value | - As discussed earlier, the mirror assembly 10 has a semitransparent mirror 60 which has front and rear surfaces 61 and 62 respectively, and a layer of a metal or metal compound such as chromium, rhodium, aluminum, or the like, and which has a thickness of about 200 to about 350 Angstroms is applied to the front surface thereof.
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