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:
May. 20, 2025
Filed:
Jun. 27, 2023
Seikoh Giken Co., Ltd., Matsudo, JP;
Ryuji Osawa, Matsudo, JP;
SEIKOH GIKEN Co., Ltd., Matsudo, JP;
Abstract
A light sensor probe includes an optical sensor unit configured to modulate an incident light depending on an intensity of an electric field of a place on which the optical sensor unit is located and output the modulated light. The optical sensor unit includes an optical modulator having a modulation electrode integrally formed with antennas. The optical modulator is a branch interference type optical modulator and a reflection type optical modulator. An input optical fiber and an output optical fiber are formed by one input/output optical fiber. A package is formed by a metal plate which functions as a shielding layer to the electric field. An opening is provided on a tip surface at a position capable of being approached to a measurement place. An insulating layer is provided on an outermost surface of a circumference of the opening.