Funai Electric Company Ltd.

Kyoto University

Yamaha Hatsudoki Kabushiki Kaisha

Fumitoshi Matsuno

Ryusuke Horibe

Manabu Murayama

Yuichiro Masuda

Shingo Setono

Tomohisa Hirai

Atsushi Mushimoto

Toru Kido

Maki Sugimoto

Yorihide Takehara

Masataka Ito

A laser rangefinder includes a light source, a scanning mirror that scans laser light emitted from the light source by oscillating about an axis of oscillation J extending in a predetermined direction, a first lens that is disposed on an optical path of reflected light from a target object and condenses the reflected light onto the scanning mirror, a second lens that is disposed on an optical path of and condenses reflected light from the scanning mirror, and a photodetector that receives the reflected light condensed by the second lens. The first lens and the second lens are disposed in positions other than positions on an optical path of the laser light between a point of emission from the light source and a point of exit from the laser rangefinder.

Laser rangefinder

A laser scanner includes a light source, a scanning mirror, and a first photodetector. The scanning mirror includes: a first reflective surface reflects the laser light from the light source; and a second reflective surface that reflects, toward the photodetector, the laser light reflected from the target object. The first reflective surface and at least part of the second reflective surface are disposed at mutually different angles. When a first optical axis passing through the target object and the first reflective surface is parallel with a second optical axis passing through the target object and the second reflective surface, a third optical axis passing through the first reflective surface and the light source and a fourth optical axis passing through the second reflective surface and the photodetector are at a predetermined angle relative to one another.

Laser scanner

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.

Laser rangefinder and method of measuring distance and direction

A scanner apparatus includes: a scanner having a mirror that is driven into resonance in a first direction; a scanner holder holding the scanner and rotatable about an axis extending in a direction parallel to the first direction; and a driver that oscillates the scanner holder, and the scanner holder includes: a first holding portion holding the scanner; a second holding portion connected to the first holding portion and holding the driver; a connecting portion connected to the second holding portion; and an elastic portion connected to the connecting portion and having elasticity.

Scanner apparatus

A remote control system and a remote control apparatus allow a human operator to remotely control a mobile body easily even if the system uses a low-speed communications link. The remote control system includes a remote control apparatus, in which a CPU selects old information based on both old information and the latest mobile body information from a mobile body, and determines a virtual view point V. The CPU generates a three-dimensional environmental image K and the virtual view point V based on the selected old information, and also generates a mobile body model M, a reference point B and a clipping center point based on the latest mobile body information and data regarding a mobile body model M, in a global coordinate system GC. The CPU calculates an angle of view based on a distance d between the virtual viewpoint V and the reference point B, makes a perspective projection of the three-dimensional environmental image K and the mobile body model M from the virtual view point V toward the clipping center point to obtain a projected image, makes a clip from the projected image based on the angle of view thereby making a composite image, and converts the composite image into a display image of a predetermined size. The resulting display image is displayed on a monitor.

Growing community of inventors

Kyoto, Japan

Fumitoshi Matsuno