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. 09, 2023
Filed:
Jul. 10, 2019
Hitachi, Ltd., Tokyo, JP;
Kenji Maruno, Tokyo, JP;
Masahiro Watanabe, Tokyo, JP;
Yuta Urano, Tokyo, JP;
Tatsuo Hariyama, Tokyo, JP;
Atsushi Taniguchi, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A distance measuring device includes a light emitting unit that outputs a measurement light, a first polarization state control unit that controls a polarization state of the measurement light output from the light emitting unit, a second polarization state control unit that controls the polarization state of the measurement light of which a polarization state is controlled by the first polarization state control unit, and an optical path switching element that selects an emission direction of the measurement light of which a polarization state is controlled by the second polarization state control unit, in which the second polarization state control unit controls the polarization state of the measurement light so that the measurement lights are emitted from the optical path switching element in a plurality of the emission directions, and the optical path switching element receives a reflected light obtained by reflecting the emitted measurement light by an object.