Abstract: A movable device includes a movable portion including a reflecting surface; a pair of drive beams to support the movable portion rotatably around a predetermined rotation axis with the movable portion disposed between the pair of drive beams; and a support portion configured to support the pair of drive beams. The support portion has a light passing portion on each of both sides of the movable portion in a direction intersecting with the rotation axis in a plane along the reflecting surface in a state in which the movable portion is not rotated, the light passing portion allowing light reflected by the reflecting surface to pass through the light passing portion.

Abstract: A drive circuit 3 includes a power source 11; current control units 12-1 to 12-n configured to control the amount of currents supplied to a light emitting element in accordance with a pulse modulation signal; and a calculation unit 13 configured to change a duty ratio of a pulse modulation signal. The current control units 12-1 to 12-n include a first switching element 21 configured to be switched on/off in accordance with a pulse modulation signal; and a second switching element 22 configured to be switched on/off in accordance with an inversion signal of the pulse modulation signal input to the first switching element 21; and an inductor 23. The first switching element 21 and the inductor 23 are serially connected between the power source and the light emitting element. The second switching element 22 is connected between ground 25 and a contact point 24 of the first switching element 21 and the inductor 23. The two or more current control units 12-1 to 12-n are connected in parallel.

Abstract: The object of the present invention is to enable presentation of information on a target object (vehicle) located on a road to a pedestrian at an appropriate time and such that the information includes appropriate information for the pedestrian's statues. A pedestrian device transmits position data of a pedestrian to an in-vehicle device, which determines whether or not the pedestrian approaches a vehicle based on the position data. When determining that the pedestrian approaches the vehicle, the in-vehicle device transmits guidance direction information to the pedestrian device. The pedestrian device performs control based on the guidance direction information so as to guide the pedestrian to look in the direction toward the vehicle, and the pedestrian device acquires sight status information of the pedestrian from a wearable terminal and transmits the sight status information to the in-vehicle terminal. Then, the in-vehicle terminal determines whether or not the pedestrian sees the vehicle.

Abstract: A drive circuit 3 includes a power source 11; current control units 12-1 to 12-n configured to control the amount of currents supplied to a light emitting element in accordance with a pulse modulation signal; and a calculation unit 13 configured to change a duty ratio of a pulse modulation signal. The current control units 12-1 to 12-n include a first switching element 21 configured to be switched on/off in accordance with a pulse modulation signal; and a second switching element 22 configured to be switched on/off in accordance with an inversion signal of the pulse modulation signal input to the first switching element 21; and an inductor 23. The first switching element 21 and the inductor 23 are serially connected between the power source and the light emitting element. The second switching element 22 is connected between ground 25 and a contact point 24 of the first switching element 21 and the inductor 23. The two or more current control units 12-1 to 12-n are connected in parallel.

Abstract: A pedestrian terminal transmits a message including pedestrian information to a roadside machine. In a case where the message transmitted from the pedestrian terminal is received, the roadside machine accumulates the pedestrian information included in the message as passage history information, detects occurrence of an abnormal event for a person possessing the pedestrian terminal based on the passage history information, and transmits the message including information indicating that the abnormal event occurs for the person possessing the pedestrian terminal to a nearby pedestrian terminal.

Abstract: An optical device includes a light source provided with a plurality of surface-emitting laser elements to emit a laser beam, a scanner to scan the laser beam emitted from the light source, and an optical system disposed in an optical path between the light source and the scanner and to guide the laser beam to the scanner. The optical system includes a first optical element to control a divergence angle of the laser beam emitted from the light source and a second optical element to concentrate the laser beam that has passed through the first optical element onto a to-be-scanned surface of the scanner.

Abstract: A surface-emitting laser array includes a plurality of surface-emitting laser elements, a plurality of optical elements, and a light shielding member. The plurality of surface-emitting laser elements are arranged on a first surface of a substrate and configured to emit light in a direction crossing the first surface. The plurality of optical elements are arranged on a second surface opposite to the first surface of the substrate to correspond to the surface-emitting laser elements and configured to change a radiation angle of the light. The light shielding member is arranged in a region between the optical elements on the second surface of the substrate.

Abstract: To enable a risk of collision between moving objects such as a pedestrian and a vehicle to be quickly and accurately determined in a roadside device, when the roadside device receives a message including state information indicating that a pedestrian is in a risky state from a pedestrian terminal, the roadside device acquires position information of a vehicle present around the pedestrian in the risky state based on a result of detecting vehicles on roads by a radar, determines a risk of collision between the pedestrian in the risky state and the vehicle based on the position information of the vehicle, and when the risk of collision exists, transmits a message including alarm information indicating that the risk of collision exists to the terminal.

Abstract: Provided is a method of manufacturing an outer joint member of a constant velocity universal joint, which is constructed by forming a cup section having track grooves, and a shaft section, and by welding a cup member and a shaft member, the method including: forming the cup member and the shaft member of medium carbon steel; preparing a cup member having a cylindrical portion and a bottom portion integrally formed by forging, and a joining end surface in a machining step; preparing a shaft member having a joining end surface formed in a machining step; bringing the joining end surface of the cup member and the joining end surface of the shaft member into abutment against each other; welding the cup member and the shaft member by radiating a beam; and performing, after the welding, an ultrasonic flaw detection-inspection step.

Abstract: A pedestrian terminal device receives pedestrian information transmitted from another pedestrian terminal device which is present in the vicinity of the pedestrian terminal device. A location of the pedestrian terminal device is acquired, and it is determined whether or not a pedestrian who carries the pedestrian terminal device is located inside a pedestrian group based on the location of the pedestrian terminal device and a location of the other pedestrian terminal device included in the pedestrian information. When the pedestrian is located inside the pedestrian group, pedestrian-vehicle communication is stopped.

Abstract: A terminal device includes: a pedestrian-to-vehicle communication device configured to communicate with an in-vehicle terminal by using a first communication method, in which direct communication is performed as pedestrian-to-vehicle communication; a wireless LAN communication device configured to communicate with the in-vehicle terminal by using a second communication method, in which indirect communication is performed via a roadside device disposed on or near a road; and a controller configured to determine whether or not the terminal device is in a risky state based on state information indicating a state of the terminal device, and select either one of the first communication method, in which direct communication is used and the second communication method, in which indirect communication is used, based on a result of the determination.

Abstract: A pedestrian terminal transmits a message including pedestrian information to a roadside machine from an ITS communicator. In a case where the message transmitted from the pedestrian terminal is received by an ITS communicator, the roadside machine accumulates the pedestrian information included in the message in a storage as passage history information and a controller generates path guidance information related to an evacuation path at a time of occurrence of a disaster based on the passage history information of the storage. Particularly, a care-needed person such as an aged person or a person frequently performing a dangerous behavior is detected, and the path guidance information for the person is generated. The message including the path guidance information is transmitted to the pedestrian terminal present nearby.

Abstract: A pedestrian terminal transmits a message including pedestrian information to a roadside machine. In a case where the message transmitted from the pedestrian terminal is received, the roadside machine accumulates the pedestrian information included in the message as passage history information, detects occurrence of an abnormal event for a person possessing the pedestrian terminal based on the passage history information, and transmits the message including information indicating that the abnormal event occurs for the person possessing the pedestrian terminal to a nearby pedestrian terminal.

Abstract: In order to enable a driver in driving a vehicle to quickly and assuredly recognize a pedestrian having a collision risk with the vehicle even when it is difficult for the driver to recognize the pedestrian by eyes, such as during night time, an in-vehicle terminal device is configured to: determine a collision risk based on pedestrian position information and vehicle position information; generate turn-on instruction information which, when the pedestrian is determined to have the collision risk with the vehicle, causes an indicator light carried by the pedestrian to be turned on in a prescribed light color; and transmit the turn-on instruction information to a pedestrian terminal device via pedestrian-vehicle communication, and wherein the pedestrian terminal device is configured to: receive the turn-on instruction information transmitted from the in-vehicle terminal device; and turn on the indicator light based on the turn-on instruction information.

Abstract: A drive circuit 3 includes a power source 11; current control units 12-1 to 12-n configured to control the amount of currents supplied to a light emitting element in accordance with a pulse modulation signal; and a calculation unit 13 configured to change a duty ratio of a pulse modulation signal. The current control units 12-1 to 12-n include a first switching element 21 configured to be switched on/off in accordance with a pulse modulation signal; and a second switching element 22 configured to be switched on/off in accordance with an inversion signal of the pulse modulation signal input to the first switching element 21; and an inductor 23. The first switching element 21 and the inductor 23 are serially connected between the power source and the light emitting element. The second switching element 22 is connected between ground 25 and a contact point 24 of the first switching element 21 and the inductor 23. The two or more current control units 12-1 to 12-n are connected in parallel.

Abstract: A distance measurement device configured to measure a distance to at least one object to be measured includes a light receiving element; a condenser optical system configured to focus light onto the light receiving element, and having field curvature aberration; and a variable deflector disposed in an optical path between the light receiving element and the condenser optical system. The light receiving element receives light deflected by the variable deflector.

Abstract: In order to enable a driver in driving a vehicle to quickly and assuredly recognize a pedestrian having a collision risk with the vehicle even when it is difficult for the driver to recognize the pedestrian by eyes, such as during night time, an in-vehicle terminal device is configured to: determine a collision risk based on pedestrian position information and vehicle position information; generate turn-on instruction information which, when the pedestrian is determined to have the collision risk with the vehicle, causes an indicator light carried by the pedestrian to be turned on in a prescribed light color; and transmit the turn-on instruction information to a pedestrian terminal device via pedestrian-vehicle communication, and wherein the pedestrian terminal device is configured to: receive the turn-on instruction information transmitted from the in-vehicle terminal device; and turn on the indicator light based on the turn-on instruction information.

Abstract: A drive circuit is configured to supply a current to a light emitting element. The drive circuit includes a plurality of switching elements configured to switch between ON/OFF states with a modulation signal, a capacitor connected in parallel with the light emitting element, and a control module configured to control the switching elements so that a voltage of the capacitor does not become lower than a threshold.

Abstract: Pedestrian terminal device that can save power consumption. The pedestrian terminal device carried by a pedestrian is provided with an operation mode selector for selecting one of a principal terminal operation mode wherein a pedestrian-vehicle communication with an in-vehicle terminal device is performed representing other pedestrian terminal devices, and an in-group terminal operation mode wherein a short-range wireless communication of a shorter range and a smaller power output than the pedestrian-vehicle communication is performed with another pedestrian terminal device operating in the principal terminal operation mode.

Abstract: A distance measuring apparatus includes a light source to emit light beams, an optical scanner to scan the light beams output from the light source over a predetermined range, a light receiver to receive reflected light obtained as a result of the light beams being reflected by a target object, and to output detection signals, and a control circuit to measure a distance to the target object based on the detection signals. The light source including a plurality of light-emitting device groups that are arranged in a scan direction of a scan performed by the optical scanner, and the control circuit being to make the plurality of light-emitting device groups emit light at respective different timings in a single scan, and to measure the distance to the target object based on a sum of the detection signals.