Glass substrate and optical component
AssigneeAGC Inc.
InventorsTomohiro Shibuya, Shin-ichi Amma, Yosuke Amino, Daisuke Kobayashi, Michinori Suehara
Life of this patent
Estimating the term…
Abstract
A glass substrate includes at least one selected from the group consisting of Li, Na, K, Mg, Ca, Sr, Ba and Zn as a reaction factor component, and includes a surface depletion layer at a surface side of the glass substrate. A total molar concentration (mol/cm3) of the reaction factor component in the surface depletion layer is decreased relative to an inside of the glass substrate. A total depletion amount (mol/cm2) of the reaction factor component in the surface depletion layer is 1.00×10−8 or more. The glass substrate has a refractive index (nd) of 1.68 or more.
Claims14
A glass substrate, comprising at least one selected from the group consisting of Li, Na, K, Mg, Ca, Sr, Ba and Zn as a reaction factor component, and comprising a surface depletion layer at a surface side of the glass substrate, wherein:
- a total molar concentration (mol/cm3) of the reaction factor component in the surface depletion layer is decreased relative to an inside of the glass substrate;
- a total depletion amount (mol/cm2) of the reaction factor component in the surface depletion layer is 1.00×10−8 or more;
- and
- the glass substrate has a refractive index (nd) of 1.68 or more.
A glass substrate, comprising at least one selected from the group consisting of Li, Na, K, Mg, Ca, Sr, Ba and Zn as a reaction factor component, wherein:
- an average value of a total molar concentration (mol/cm3) of the reaction factor component in an outermost surface layer being a region of 0 to 10 nm from a surface of the glass substrate relative to a total molar concentration (mol/cm3) of a reaction factor component in an inside of the glass substrate is 35.0% or more and 100.0% or less in terms of decrease rate;
- and
- the glass substrate has a refractive index (nd) of 1.68 or more.
Dependencies are inferred from the claim text.