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US 7,332,809 B2Granted
Glass substrate having a grooved portion, method for fabricating the same, and press mold for fabricating the glass substrate
AssigneeAsahi Glass Company, Limited
InventorsTakeshi Shimazaki, Masatoshi Ohyama, Hiroshi Wakatsuki
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Abstract
A press mold for fabricating a glass substrate, the glass substrate comprising a substrate; and a terrace-shaped flat portion formed on the substrate and having a grooved portion formed therein, is characterized in that the press mold comprises a top mold and a bottom mold; at least one of the top mold and the bottom mold having an indented portion formed therein so as to correspond to the terrace-shaped flat portion, the indented portion having an entire periphery surrounded by a mold reference surface.
Claims7
A glass substrate comprising:
- a substrate;
- a terrace-shaped flat portion formed on the substrate and having at least one bonding projection and a grooved portion formed in a micron structure therein;
- and
- a boundary portion adjacent to the terrace-shaped flat portion formed on the substrate, the boundary portion being arcuately chamfered,
- wherein the bonding projection is higher in a vertical direction than a top of the grooved portion.
2 more elements
An optical fiber fixing substrate comprising:
- a substrate body having a flat portion;
- and
- a terrace-shaped flat portion including
- a grooved portion formed on the substrate having at least one groove formed in the grooved portion, the grooved portion configured to fix an end portion of an optical fiber, and
- bonding projections formed on both sides of the grooved portion and adjacent to the grooved portion so as to sandwich the grooved portion therebetween and to be higher than the flat portion and a top of the at least one groove,
- wherein the top of the at least one groove, a boundary portion between adjacent to the grooved portion and each of the bonding projections, and ridge portions of the bonding projections are arcuately chamfered.
3 more elements
Dependencies are inferred from the claim text.