OPTICAL GLASS, OPTICAL ELEMENT, OPTICAL SYSTEM, CEMENTED LENS, INTERCHANGEABLE CAMERA LENS, MICROSCOPE OBJECTIVE LENS, AND OPTICAL DEVICE
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United States of America Patent
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Issued Date -
Apr 11, 2024
app pub date -
Dec 13, 2023
filing date -
Jun 29, 2021
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Abstract
An optical glass comprising: by cation %, more than 0% and up to 40% of a content rate of La3+; 15% to 65% of a content rate of Ti4+; and more than 0% and up to 20% of a content rate of Zr4+; wherein a refractive index (nd) with respect to a d-line is from 2.00 to 2.35.
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