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AssigneeAGC Inc.
InventorsShuhei OGAWA, Naomichi MIYAKAWA, Yasuo SHINOZAKI, Haruhiko YOSHINO, Kazunari TOHYAMA, Kazuto OHKOSHI
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The present invention relates to a light-transmitting ceramic sintered body which contains air voids having pore diameters of 1 μm or more but less than 5 μm at a density within the range of from 10 voids/mm3 to 4,000 voids/mm3 (inclusive), while having a closed porosity of from 0.01% by volume to 1.05% by volume (inclusive). With respect to this light-transmitting ceramic sintered body, a test piece having a thickness of 1.90 mm has an average transmittance of 70% or more in the visible spectrum wavelength range of 500-900 nm, and the test piece having a thickness of 1.90 mm has a sharpness of 60% or more at a comb width of 0.5 mm.
A light-transmitting ceramic sintered body containing air bubbles each having a pore size of 1 μm or more and less than 5 μm in an amount of 10 bubbles/mm3 or more and 4,000 bubbles/mm3 or less, and having a closed porosity of 0.01 vol % or more and 1.05 vol % or less;
A light-transmitting ceramic sintered body containing air bubbles each having a pore size of 1 μm or more and less than 5 μm in an amount of 10 bubbles/mm3 or more and 4,000 bubbles/mm3 or less, and having a closed porosity of 0.01 vol % or more and 1.05 vol % or less;
A light-transmitting ceramic sintered body containing air bubbles each having a pore size of 1 μm or more and less than 5 μm in an amount of 10 bubbles/mm3 or more and 4,000 bubbles/mm3 or less, and having a closed porosity of 0.01 vol % or more and 1.05 vol % or less;
Dependencies are inferred from the claim text.