The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 29, 2025
Filed:
Mar. 18, 2021
Agency for Defense Development, Daejeon, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Sunghoon Hong, Daejeon, KR;
Hyun Jong Woo, Daejeon, KR;
Youngchul Ghim, Daejeon, KR;
Seongmin Choi, Daejeon, KR;
Donggeun Lee, Daejeon, KR;
Alvin Amry Sugianto, Daejeon, KR;
AGENCY FOR DEFENSE DEVELOPMENT, Daejeon, KR;
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Abstract
A voltage measuring device for measuring a voltage by using a Pockels cell includes a Pockels cell changing a refractive index of incident light based on an applied electric field, at least one non-polarized beam splitter splitting an incident beam, a first polarizing plate polarizing a first beam split by the at least one non-polarized beam splitter, a first light detector detecting light polarized based on the first polarizing plate, a ¼ wave plate elliptically polarizing and outputting a second beam split by the at least one non-polarized beam splitter, a second polarizing plate polarizing the elliptically polarized second beam, a second light detector detecting light polarized based on the ¼ wave plate and the second polarizing plate, and a controller configured to measure a voltage based on a first light intensity determined by the first light detector and a second light intensity determined by the second light detector.