Mixed oxide high index optical coating material and method

Details Mixed oxide high index optical coating material and method Mixed oxide high index optical coating material and method

1997-06-23

1999-11-23

Bell, Janyce

Coating processes

Optical element produced

427166, 427250, 427255, 4272553, 427596, 427597, 501103, 501134, 501152, C04B 35462, B05D 506

Patent

active

059896264

ABSTRACT:
A composition of material of the formula MN.sub.x O.sub.y where M and N are metals selected from the group of elements consisting of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, V, Nb, Ta, Ac, Th, and U where O is oxygen and x and y have values such that the oxygen-to-metal ratio is less than 4 and the ratio of y/(1+x) is also less than 4, said material being in the form of a single oxide phase and having a crystal structure of a single type alone with no detectable crystal structure of a second type, said material being sub-stoichiometric.

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patent: 5641719 (1997-06-01), Coombs

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