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:
Feb. 27, 2024
Filed:
Jun. 19, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Yosuke Takagawa, Tokyo, JP;
Masahiro Kawai, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A distance measurement apparatus includes: a laser light source configured to emit emitted light to be applied to an object to be measured; a laser light source control circuit configured to control the laser light source; a MEMS mirror configured to two-dimensionally scan the object with the emitted light; a reflecting member configured to cover a part of a scan region, and reflect the emitted light; and a light detector configured to receive reflected light from the object to be measured and reflected light from the reflecting member, and output a received light signal. The laser light source control circuit sets, to a threshold value, an amount of the emitted light obtained when output of the light detector is saturated, and controls an amount of the emitted light such that the amount of the emitted light is less than the threshold value.