Invention Publication
- Patent Title: OPTICAL FILTER, AND IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING OPTICAL FILTER
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Application No.: US18077777Application Date: 2022-12-08
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Publication No.: US20230185005A1Publication Date: 2023-06-15
- Inventor: Hyochul Kim , Moonsook Lee , Younggeun Roh
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Priority: KR 20210176938 2021.12.10
- Main IPC: G02B5/20
- IPC: G02B5/20 ; G02B5/28 ; H01L27/146 ; G02B5/30

Abstract:
An optical filter includes an active filter region including at least one of a spectral filter and a polarizing filter; and a reference filter region configured to sense an amount of light passing through the active filter region, wherein the reference filter region includes a gray filter and at least one of a black filter and a transparent filter, wherein the gray filter has a transmittance that is higher than a transmittance of the black filter and lower than a transmittance of the transparent filter.
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