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公开(公告)号：US11774649B2
公开(公告)日：2023-10-03
申请号：US17237617
申请日：2021-04-22
Applicant: HOYA CORPORATION
Inventor： Toshiki Nakamura , Yutaka Takakubo , Yoshitake Tanno , Yasushi Tsutsumi , Naomi Matsumoto
IPC: G02B5/18
CPC classification number: G02B5/1814 , G02B2005/1804
Abstract: An optical element includes a glass body including a colored layer provided inside the glass body and positioned at an optical function surface of the optical element. An optical apparatus including the optical element is also provided.
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