Optex Co., Inc.

Keisuke Katsumi

Tatsuya Kobayashi

Masashi Iwasawa

Tomoyuki Ohba

Motoki Tamura

Seongho Cho

Masayuki Miyamoto

Object detection device

A laser scanning sensor includes a laser light-emitting element to emit a pulse laser beam, a light-receiving element to receive a returned reflected beam, a rotary polygon mirror having a plurality of reflecting surfaces to change the travelling direction of the pulse laser beam, and a drive motor to rotate the rotary polygon mirror in a predetermined direction. The sensor also includes an encoder to detect the rotation status of the rotary polygon mirror and to generate a reference signal and trigger signals for the respective reflecting surfaces, and a control/calculation unit to produce a projection pulse train in a specific pulse cycle after a delay time from the generation of a trigger signal for each of the reflecting surfaces, and to acquire distance information per pulse, based on the time after the start of emission of the pulse laser beam before the return of the reflected beam.

Laser scanning sensor

Human body detector

A laser scanning sensor () includes: a head part () having a shape inscribed in a virtual cube, wherein the head part has a wiring hole () oriented to an intersection of three mutually orthogonal planes in the cube, and attachment portions (-) provided one each at inscribed points in the three planes, and wherein the head part is further configured to acquire range information in each measurement direction by containing a laser range finder () and a scanning mechanism () for changing a measurement direction by the laser range finder (); a base part () configured to be mounted on an installation surface; and a joint part () configured to join any one of the attachment portions (-) in the head part () with the base part ().

Growing community of inventors

Shiga, Japan

Keisuke Katsumi