Stock material or miscellaneous articles – Composite – Of quartz or glass
Reexamination Certificate
2005-03-29
2005-03-29
Jones, Deborah (Department: 1775)
Stock material or miscellaneous articles
Composite
Of quartz or glass
C428S428000, C428S433000, C428S499000, C428S701000, C428S702000, C204S192100
Reexamination Certificate
active
06872452
ABSTRACT:
The high refractive dielectric film which can be used stably as a constituent material of an optical multi-layer film, namely, and which does not cause change over time in optical properties and has small film stress, is an amorphous material having no columnar structure, obtained by adding to a main component titanium oxide (TiOx: 1≦x≦2) another metal oxide (MOw: M represents a metal such as niobium, tantalum, 1≦w). Though titanium oxide is a material which tends to manifest a crystalline structure even in the form of a thin film, a mixed high refractive dielectric film can be obtained, containing titanium oxide causing little change over time in optical properties by rendering the resulting thin film amorphous by inhibiting growth of a crystal of titanium oxide by adding another metal oxide.
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International Search Report: Form PCT/ISA210 4 sheets.
Enjoji Katsuhisa
Taninaka Yasunori
Blackwell-Rudasill G.
Conlin David G.
Edwards & Angell LLP
Jones Deborah
Neuner George W.
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