Optical elements and methods of making optical elements

The present invention provides an optical element including a silver halide-containing glass material having a concentration of less than 0.001 wt % cerium; and a refractive index pattern formed in the silver halide-containing glass material, the refractive index pattern including regions of high re...

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Bibliographic Details
Main Authors BORRELLI NICHOLAS F, SCHROEDER JOSEPH F, HARES GEORGE B
Format Patent
LanguageEnglish
Published 07.10.2004
Edition7
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:The present invention provides an optical element including a silver halide-containing glass material having a concentration of less than 0.001 wt % cerium; and a refractive index pattern formed in the silver halide-containing glass material, the refractive index pattern including regions of high refractive index and regions of low refractive index, the difference between the refractive indices of the high refractive index regions and the low refractive index regions being at least 4x10<-5 >at a wavelength of 633 nm. The present invention also provides methods for making optical elements from siliver halide-containing glass materials.
Bibliography:Application Number: US20030405680