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. 01, 2018
Filed:
Jul. 02, 2015
Funai Electric Co., Ltd., Osaka, JP;
Kyoto University, Kyoto, JP;
Shingo Setono, Ikoma, JP;
Ryusuke Horibe, Hirakata, JP;
Manabu Murayama, Itami, JP;
Yuichiro Masuda, Takatsuki, JP;
Tomohisa Hirai, Osaka, JP;
Atsushi Mushimoto, Daito, JP;
Fumitoshi Matsuno, Kyoto, JP;
FUNAI ELECTRIC CO., LTD., Osaka, JP;
KYOTO UNIVERSITY, Kyoto, JP;
Abstract
A laser rangefinder includes: a MEMS mirror that changes a traveling direction of laser light; a first photodetector that reflects a portion of the laser light directed in a predetermined direction by the MEMS mirror and receives another portion of the laser light; a second photodetector that receives first reflected light that is reflection of the laser light from a target object outside an enclosure and second reflected light that is reflection of the portion of the laser light from the first photodetector; and a signal processor that calculates a distance from the laser rangefinder to the target object by subtracting, from a first distance from the laser diode to the target object calculated using the first reflected light, a second distance from the laser diode to the first photodetector calculated using the second reflected light, and calculates a direction of the target object with respect to the laser rangefinder.