Abstract: A light-emitting apparatus includes: a light-emitting unit including a light-emitting element; a drive unit including a first element connected to a cathode electrode provided on a cathode side of the light-emitting element, the drive unit being configured to drive the light-emitting element by supplying current that causes light emission; and a capacitive unit provided in parallel with a route of current that causes light emission, between an anode electrode provided on an anode side of the light-emitting element and the cathode electrode.

Abstract: A light emitting device includes plural light sources each having plural light emitting sections configured to emit light individually, in which the plural light sources is driven to light only first light emitting sections that radiate the light toward one region, and the plural light sources includes a partial light source having a radiation angle larger than a radiation angle of another light source.

Abstract: An optical detection device includes a light emitter that irradiates an area of interest; a light receiver that receives reflected light that has been emitted by the light emitter and reflected on a detection object, the light receiver including plural light-receiving elements divided into plural light reception sections; and a processor configured to perform at least one of full irradiation for irradiating the whole area of interest and full light reception for outputting all light reception results and at least one of partial irradiation for irradiating part of the area of interest and partial light reception for outputting part of the light reception results one part by one part and perform an object detection process for detecting the detection object in accordance with light received by the light receiver.

Abstract: A light emitting device includes: a substrate; a light emitting element array provided on the substrate, the light emitting element array having first and second side surfaces facing each other, and third and fourth side surfaces facing each other and connecting the first and second side surfaces; a driving element provided on the substrate at a side of the first side surface and driving the light emitting element array; a light receiving element provided on the substrate at a side of the second side surface and receiving light emitted from the light emitting element array; and a wiring member provided at a side of the third side surface and at a side of the fourth side surface and extending from an upper surface electrode of the light emitting element array toward an outside of the light emitting element array.

Abstract: A light-emitting device includes: a base material; an electrode that is disposed on a front surface of the base material, that has a light-emitting element on a front surface of the electrode, and that is electrically connected to the light-emitting element; a connection portion disposed at a position separated from the electrode on the front surface of the base material and connected to a conductive portion having a reference potential; and a heat transfer member that includes a contact surface along the front surface of the base material, the contact surface being in contact with a front surface of the electrode and a front surface of the connection portion, the heat transfer member being configured to transfer heat from the electrode to the connection portion.

Abstract: A distance measurement device includes: a light source configured to irradiate a measurement target with pulsed light; a pixel circuit that includes a photoelectric conversion region in which light that is the pulsed light reflected from the measurement target, is converted into charge and a plurality of charge accumulation regions in which the charge converted in the photoelectric conversion region is accumulated; a signal detection unit configured to read, as a plurality of detection signals, signals corresponding to amounts of the charge accumulated in the plurality of respective charge accumulation regions; and a processor configured to control the light source, the pixel circuit, and the signal detection unit and calculate a distance using the plurality of detection signals.

Abstract: A light emitting device includes: a light emitting unit that includes plural light emitting elements; a transfer unit that transfers a signal for setting a light emitting element to turn into an on state among the plural light emitting elements; and a low-pass filter provided between a reference potential terminal of the transfer unit and an external reference potential.

Abstract: A light-emitting device includes a laser element array having a quadrangular planar shape, a pair of capacitors that supply an electric current for light emission of the laser element array, and a driving unit that drives the laser element array by turning on and off the electric current for light emission of the laser element array. The pair of capacitors are disposed beside two sides of the laser element array that face each other so as to sandwich the laser element array, and the driving unit is disposed beside another side of the laser element array.

Abstract: A light emitting device includes plural light emitting blocks, each including a light emitting element and a setting element that sets the light emitting element in a state of being able to be turned on, and a discharge path that includes a discharge element capable of controlling discharge in a case where the light emitting element is turned off and through which charges accumulated in a case where the light emitting element is turned on are discharged, in which the plural light emitting blocks and the discharge path are electrically connected in parallel.

Abstract: A light emitting device includes a light emitting unit that has a first light source irradiating a first irradiation region with light and a second light source irradiating a second irradiation region with light in a turned-on state and that arranges the first irradiation region and the second irradiation region to be parallel to each other or superimposed on each other at a reference distance and irradiates the first irradiation region and the second irradiation region with light, and a drive unit that drives the light emitting unit such that one of the first light source and the second light source is in a turned-on state and the other is in a turned-off state in a case where the light emitting unit irradiates a target object at a first distance different from the reference distance with light.

Abstract: A light emitting device includes a light emitting unit that emits light, an optical system that expands an irradiation range of the light emitted from the light emitting unit as a distance from the light emitting unit increases, and plural light sources each having the light emitting unit and the optical system and irradiating different irradiation regions with light beams, in which center lines of the light beams emitted from the light sources to the irradiation regions intersect each other.

Abstract: A light emitting device includes a light emitting unit that irradiates different irradiation regions with light beams from plural light sources in parallel, and a control unit that turns off a part of the plural light sources that irradiate, with light beams, an overlapping region where the irradiation regions by the respective light sources overlap each other in a case where an entry of a target object into the overlapping region is detected.

Abstract: A light emitting device includes a light emitting element array in which plural light emitting elements are arranged such that a length in one direction is w, the light emitting element array being a first light emitting element array and a second light emitting element array that are parallel to each other in the one direction, a first optical system that refracts light emitted from the first light emitting element array, and a second optical system that refracts light emitted from the second light emitting element array such that an irradiation region of the second light emitting element array is parallel to an irradiation region of the first light emitting element array in the one direction, in which a distance between an optical axis of the first optical system and a center of the first light emitting element array and a distance between an optical axis of the second optical system and a center of the second light emitting element array in the one direction are w/4 or more and w/2 or less.

Abstract: A heat source unit includes a controller configured to control the subcooling-side decompression valve according to a degree of subcooling of a refrigerant flowing out of the first flow path of the subcooling heat exchanger. Under a condition that the opening degree of a subcooling-side decompression valve is equal to or greater than a predetermined opening degree, the controller determines that there is a shortage of a refrigerant in the refrigerant circuit.

Abstract: A light-emitting device includes plural driving units; plural laser element arrays connected to the respective plural driving units; and a connection wire that interconnects terminals of the plural laser element arrays, the terminals being connected to the plural driving units.

Abstract: A light emitting device includes: a substrate that is provided with at least a part of a resonant circuit in which resonance occurs; and a light emitting element that emits light in a case where a current in the resonant circuit is supplied, in which the substrate has an electric accumulation layer provided in the resonant circuit and accumulating electric charge, and the resonant circuit is not provided with an electric accumulation element having a thickness larger than a thickness of the electric accumulation layer and accumulating electric charge.

Abstract: A light-emitting device includes a first base member; a laser unit provided on the first base member; a capacitive element that is provided on the first base member and supplies a driving electric current to the laser unit; a wiring board that is constituted by a second base member having lower thermal conductivity than the first base member and on which the first base member is mounted; and a driving unit that is mounted on the wiring board and drives the laser unit.