Abstract: A light-emitting device includes: a first light-emitting element array that includes plural first light-emitting elements arranged at a first interval; a second light-emitting element array that includes plural second light-emitting elements arranged at a second interval wider than the first interval, second light-emitting element array being configured to output a light output larger than a light output of the first light-emitting element array, and being configured to be driven independently from the first light-emitting element array; and a light diffusion member provided on an emission path of the second light-emitting element array.

Abstract: A light-emitting element array chip includes: a first light-emitting element array that includes a first light-emitting element including a first substrate, a light-emitting element layer formed on the first substrate, and a first cathode electrode electrically connected to the light-emitting element layer; and a second light-emitting element array that includes a second light-emitting element including a second substrate, a non-p-type lower reflector formed on the second substrate, and a second cathode electrode electrically connected to the non-p-type lower reflector, in which the first light-emitting element array is provided on an emission surface side of the second light-emitting element array.

Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.

Abstract: A light-emitting array includes a light-emitting part having plural light-emitting block, a selection part that operates with a reference potential supplied from a reference part provided on an outside as a reference and selects the light-emitting block to be made to emit light, and a disconnection part that disconnects connection of the selection part and the reference part in a period during which a light emission current caused by low-side drive is flowing in the light-emitting block.

Abstract: A light emitting component includes: a substrate; a plural light emitting elements that are provided on the substrate and respectively have light emission regions; and a plural thyristors that are turned on to cause the light emission regions of the respective light emitting elements to emit light, or that increase amounts of emitted light of the light emission regions, in which the light emitting elements absorb light emitted from a corresponding thyristor among the plural thyristors.

Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.

Abstract: A light-emitting device includes one or more light-emitting units each including a light-emitting element including a function of a thyristor; an electrode for light emission to which a first voltage is applied for light emission of the light-emitting unit; and one or more light emission permission thyristors that permit the light-emitting element to emit light by a second voltage that is lower than the first voltage and set irrespective of the first voltage.

Abstract: A detection device includes: a light emitting element array including a plurality of light emitting elements; a light receiving element array including a plurality of light receiving elements that receive reflected light of light emitted from the light emitting element array to an object to be detected; a driver that drives the light emitting elements; and a detector that detects the object to be detected while controlling at least one of a supply timing of a drive current to the light emitting elements to be caused to emit light and a light receiving timing of the light receiving elements so that a time from a start of light emission of the light emitting elements to be caused to emit light to the light receiving timing of the light receiving elements falls within a predetermined range even when a change occurs in an arrangement of the light emitting elements to be caused to emit light.

Abstract: An irradiation device includes a light source that performs irradiation with light, a refraction portion that has a curved region and is arranged at a position at which the curved region is directly irradiated with the light from the light source, and refracts the light of the irradiation from the light source, and a light reception portion that is arranged at a position, which is adjacent to the light source and at which reflective light reflected by the curved region after the irradiation from the light source is received, and that receives the reflective light.

Abstract: A light emitting element includes: a light emitting unit that has multiple semiconductor layers laminated, the light emitting unit having a length from a center of the light emitting unit to an end portion in a first direction shorter than a length from the center to an end portion in a second direction intersecting the first direction, in plan view; and a connection part that extends from the light emitting unit in the first direction and connects the light emitting unit to another semiconductor layer.

Abstract: A light emitting device includes: a light emitting section that includes a light emitting element; a capacitor section connected to the light emitting section; and a control section that controls a potential of the capacitor section when the light emitting element of the light emitting section emits light.

Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.

Abstract: A light-emitting element array includes multiple light-emission instruction units arranged in a first direction; a first light-emitting element group row including light-emitting element groups each including a multiple light-emitting elements such that the light-emitting element groups are arranged in a direction intersecting the first direction; a second light-emitting element group row including light-emitting element groups each including a multiple light-emitting elements such that the second light-emitting element group row is arranged along the first light-emitting element group row in the first direction; and a multiple wiring lines that connect the multiple light-emission instruction units to the light-emitting element groups in the first light-emitting element group row and the light-emitting element groups in the second light-emitting element group row to provide a light-emission instruction.

Abstract: A light-emitting device includes a wiring substrate, a base member provided on the wiring substrate, a light-emitting element array that has a first side surface and a second side surface facing each other, that has a third side surface and a fourth side surface facing each other and connecting the first side surface and the second side surface, and that is provided on the base member, a drive unit that is provided on the wiring substrate at a side of the first side surface and drives the light-emitting element array, a first circuit element that is provided on the base member at the side of the first side surface, a second circuit element that is provided on the base member at a side of the second side surface and has a larger occupation area on the base member than the first circuit element, and wiring members that are provided at a side of the third side surface and at a side of the fourth side surface and extend from an upper surface electrode of the light-emitting element array toward an outer side of th

Abstract: A light emitting device includes a light emitting unit that includes a light emitting element having a function of a thyristor; and a drive unit that performs, before a period in which light emitted from the light emitting unit is used, control such that a predetermined current or larger flows in the thyristor of the light emitting unit.

Abstract: A distance measurement apparatus includes a light emitting unit that has plural light emitting elements, and is able to be driven independently in plural regions, a light receiving unit provided with plural light receiving elements that receive reflected light of light applied to an object from the light emitting unit, a shaping unit that causes an overlapping portion to be generated in which light reception of the reflected light overlaps in the adjacent regions, on the light receiving unit, a measurement unit that measures a distance to the object, from a difference between a waveform of light received by the light receiving unit and a waveform of light emitted by the light emitting unit, and a correction unit that corrects a distance difference in the reflected light in the adjacent regions, by using a distance measurement value in the overlapping portion measured by the measurement unit.

Abstract: A light emitting device includes a wiring substrate, a light emitting element array that includes a first side surface and a second side surface facing each other, and a third side surface and a fourth side surface connecting the first side surface and the second side surface to each other and facing each other, the light emitting element array being provided on the wiring substrate, a driving element that is provided on the wiring substrate on the first side surface side and drives the light emitting element array, a first circuit element and a second circuit element that are provided on the wiring substrate on the second side surface side to be arranged in a direction along the second side surface, and a wiring member that is provided on the third side surface side and the fourth side surface side and extends from a top electrode of the light emitting element array toward an outside of the light emitting element array.

Abstract: Provided is a light emitting device including: a base material mounted on a wiring substrate; a light emitting element array provided on the base material; a first conductive pattern provided on the surface of the base material, the first conductive pattern including a first facing region connected to the light emitting element array, the first facing region being along a side surface of the light emitting element array and facing to the light emitting element array, and a first extending region extended beyond the first facing region; and penetrating members penetrating the base material from the first conductive pattern to a back surface side of the base material, each penetrating member being connected to the first facing region or the first extending region.

Abstract: A light-emitting device includes one or more light-emitting units each including a light-emitting element including a function of a thyristor; an electrode for light emission to which a first voltage is applied for light emission of the light-emitting unit; and one or more light emission permission thyristors that permit the light-emitting element to emit light by a second voltage that is lower than the first voltage and set irrespective of the first voltage.

Abstract: A light-emitting device includes: plural light-emitting units; a driving unit that drives the light-emitting units by supplying a current to the light-emitting units; and a switching unit that is provided on a side opposite to a side where the driving unit is provided relative to the plural light-emitting units and switches light emission of the plural light-emitting units.