Diffractive Optical Elements

Famous quotes containing the words optical and/or elements:

    It is said that a carpenter building a summer hotel here ... declared that one very clear day he picked out a ship coming into Portland Harbor and could distinctly see that its cargo was West Indian rum. A county historian avers that it was probably an optical delusion, the result of looking so often through a glass in common use in those days.
    —For the State of New Hampshire, U.S. public relief program (1935-1943)

    Our institutions have a potent digestion, and may in time convert and assimilate to good all elements thrown in, however originally alien.
    Herman Melville (1819–1891)