円盤状ガラス基板

JP7891956B2Inactive Publication Date: 2026-07-17HOYA CORPORATION
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
HOYA CORPORATION
Filing Date
2023-09-12
Publication Date
2026-07-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Benefits of technology

【0012】 本発明によれば、高い表面品質かつ高精度の板厚を有する薄板ガラス基板を大量に安定して生産することが可能になる。

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Abstract

To enable stable mass production of a thin sheet glass substrate having high surface quality and highly accurate sheet thickness.SOLUTION: A disk-shaped glass substrate is used to cut out one or more thin sheet glass substrates. The disk-shaped glass substrate comprises two circular main surfaces, an outer edge surface, and chamfered surfaces each of which connects each of the circular main surfaces to the outer edge surface and forms a curve when viewed from the side. The disk-shaped glass substrate has a refractive index equal to or higher than 1.60.SELECTED DRAWING: Figure 2
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