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AssigneeSchott AG
InventorsJose Zimmer, Ulrich Peuchert, Jochen Alkemper, Martin Letz, Steffen Reichel, Yoshio Okano, Yvonne Menke
Estimating the term…
The refractive, transmissive or diffractive optical elements are made from a ceramic containing one or more oxides of the type X2O3, which is transmissive for visible light and/or for infrared radiation and which has a cubic crystal structure analogous to that of Y2O3. In preferred embodiments X is Y, Sc, In, or a lanthanide element, namely La to Lu, and in particular is Lu, Yb, Gd, or La. Also mixtures of oxides of the type X2O3 with oxides having different stoichiometries, such as HfO2 and/or ZrO2, may be present, as long as the cubic structure of the ceramic is maintained.
A refractive, transmissive or diffractive optical element comprising a ceramic;
A mapping optic, comprising at least two lenses of at least two different transparent materials, wherein at least one of said lenses is made of a ceramic and at least one other of said lenses is made of glass;
Dependencies are inferred from the claim text.