Nonreflective coating
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United States of America Patent
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-
Feb 2, 1982
Issued Date -
N/A
app pub date -
Jan 2, 1980
filing date -
Dec 23, 1975
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A nonreflective coating is made up of five or seven layers of optical films provided on an optical element, such as a lens, whose refractive index is in a certain refractive index range for a particular light wavelength. The layers are formed of two materials different in refractive index so that the odd layers have one of the two refractive indexes while the even layers have the other refractive index, and the thicknesses of the layers are suitably defined as functions of the light wavelength.
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