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 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: An optical distance-measuring device includes: a light emitter having plural light-emitting areas that are arrayed in a first direction; an optical system provided at a position toward which the light emitter emits light, the optical system causing light beams respectively emitted from the plural light-emitting areas to be deflected in respectively different directions; and a detector including plural detecting elements configured to detect a reflection of light outgoing from the optical system. Detecting directions of some of the plural detecting elements are different from detecting directions of others of the plural detecting elements in the first direction.

Abstract: A light emitting device includes: a light emitting part having multiple light emitting regions arranged along a first direction; and an optical system that is disposed on a light-exit side of the light emitting part and that deflects light emitted from the multiple light emitting regions in different directions, the optical system being configured such that a light exit angle in a second direction, which intersects the first direction, is smaller than the light exit angle in the first direction.

Abstract: A light-emitting component includes a substrate and a light-emitting element provided on the substrate and configured to emit light in a direction intersecting a surface of the substrate. The light-emitting element includes a thyristor having an opening through which light is emitted, and an inner surface of the opening is covered with a light shield that suppresses transmission of light.

Abstract: A distance measurement system including: a light emitting unit that includes a first light emission section including a light emitting element that emits light having a first wavelength and a second light emission section including a light emitting element that emits light having a second wavelength; a drive unit that performs driving to cause light to be simultaneously emitted in both the first light emission section and the second light emission section; a light receiving unit that includes a first light reception section including a light receiving element that receives the light having the first wavelength and a second light reception section including a light receiving element that receives the light having the second wavelength; and a distance measurement unit that measures a distance to a target object from a time during which the light emitted by the light emitting unit is reflected by the target object and then is received by the light receiving unit.

Abstract: A light emitting element array includes: plural light emitting elements, in which, among polarization components of light emitted by the light emitting element capable of causing interference of emitted light, light intensity of a polarization component of light in a second direction intersecting with a first direction in which light emitting elements capable of causing the interference of the light are arranged is smaller than light intensity of a polarization component in the first direction.

Abstract: A semiconductor optical amplifier includes: a substrate; a light source unit formed on the substrate; and an optical amplification part that amplifies light propagating in a predetermined direction from the light source unit and emits the amplified light in an emission direction intersecting with the substrate surface. The optical amplification part includes a conductive region extending in the predetermined direction along the substrate surface from the light source unit, and a nonconductive region formed around the conductive region. The conductive region includes a first region extending from the light source unit and having a predetermined width as seen from a direction perpendicular to the substrate surface, and a second region connected to the first region and having a width widened relative to the predetermined width of the first region, the second region being configured to expand the propagation light in a direction intersecting with the predetermined direction.

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 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 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 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: 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 measurement apparatus includes a light emitter that includes: a first light emission region emitting light toward a first area and a second light emission region emitting light toward a second area different from the first area; a light receiver that includes a first light reception region receiving light reflected from the first area and a second light reception region receiving light reflected from the second area; and an acquisition unit that acquires information on the second area, in accordance with light reception results of the second light reception region that receives light reflected from the second area irradiated with the light emitted from the first light emission region.

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 semiconductor optical amplifier includes a conductive region that is provided on a substrate and allows light transmission, and a nonconductive region that is provided around the conductive region and prohibits light transmission. The conductive region includes a first region including a light-coupling portion to which light from an external light-source unit is coupled, and a second region having a narrower width than the first region and connected to the first region through a connecting portion, the second region including a light-amplifying portion amplifying the light from the light-coupling portion by propagating the light in a predetermined propagating direction along a surface of the substrate, the light-amplifying portion outputting the amplified light in a direction intersecting the surface of the substrate.

Abstract: A measurement apparatus includes a light emitter including a substrate and a light emission unit that emits light in an inclined direction inclined with respect to the substrate and a normal line of the substrate, and a light receiver that receives, on a light reception surface, reflected light emitted from the light emitter and reflected by an object to be measured, in which in a case where an angle formed by the light emitted from the light emitter and the substrate of the light emitter is an angle ?1 (0°<?l<90°), an angle ?2 formed by the substrate and the light reception surface of the light receiver satisfies 0°<?2<180°?2?1.

Abstract: A light-emitting element array includes a substrate, plural light-emitting elements arranged on the substrate, plural constriction grooves being provided in a periphery of each of the plural light-emitting elements, and forming a current constriction layer that constricts a current flowing through a light-emitting layer by oxidizing the light-emitting layer, and a block separation portion that is formed so as to overlap a part of the plural constriction grooves in plan view, and separates the plural light-emitting elements into plural blocks.

Abstract: A light-emitting element array includes a substrate, plural light-emitting elements arranged on the substrate, plural constriction grooves being provided in a periphery of each of the plural light-emitting elements and forming a current constriction layer that constricts a current flowing through a light-emitting layer by oxidizing the light-emitting layer, and a block separation portion that is provided in a curved shape so as to include at least one inflection point at which a sign of curvature changes along each of positions where the plural light-emitting elements are arranged, and separates the plural light-emitting elements into plural blocks.

Abstract: A light emitting apparatus includes a substrate and light emitting elements including at least one light emitting element that is provided, on the substrate, in each region of plural regions and that emits irradiation light toward a target object, the regions including a first region and a second region and being isolated from each other to be arranged one-dimensionally or two-dimensionally. In the plural regions, an irradiation light amount of at least one light emitting element provided in the first region that is a region located at an end in an arrangement direction is larger than an irradiation light amount of at least one light emitting element provided in the second region that is a region located at a place other than the end in the arrangement direction.