Abstract: In a light detection device, each pixel includes a plurality of APDs. Each APD forms a light receiving region and is configured to operate in a Geiger mode. The plurality of APDs forms a plurality of light receiving regions arranged in a direction along a main surface in a pixel area ? occupied by a corresponding pixel among a plurality of pixels. The MOS switch circuit region overlaps with the plurality of light receiving regions when viewed from a Z-axis direction. When viewed from the Z-axis direction, the area of the MOS switch circuit region is greater than the area of one light receiving region formed in the pixel area, and less than or equal to the area of the pixel area. A plurality of APDs included in each pixel is electrically connected in parallel to each other and each is connected to a MOS switch circuit.

Abstract: In a light detection device, switches are connected in parallel to each other. Each of the switches is connected to an APD. A read line electrically connects the switch and a signal processor to each other. The switch is configured such that a second terminal is connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in a conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in the conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage less than a breakdown voltage is applied to the APD in the conductive state.

Abstract: A method for manufacturing a substrate material for a semiconductor package having an insulating substrate includes forming an insulating substrate from a prepreg by a molding treatment including increasing a temperature of a laminated body including two or more laminated sheets of a prepreg while pressurizing the laminated body. The molding treatment includes increasing the temperature of the laminated body under a heating condition in which a melt viscosity of the prepreg increases to 1000×103 Pa·s at a rate of 55×103 Pa·s/min or greater from a time point at which a minimum melt viscosity is exhibited.

Abstract: The purpose is to provide a wavelength conversion member, a method for producing the wavelength conversion member, and a light-emitting device, which are capable of reducing the temperature rise of the wavelength conversion member and thus reducing the decrease in luminescence intensity with time and deformation and discoloration of constituent materials. A wavelength conversion member 10 includes thermally conductive particles 1 and phosphor particles 4 and the thermally conductive particles 1 include two types of thermally conductive particles different in average particle diameter from each other.

Abstract: Provided are a wavelength conversion member, a light-emitting element, and a light-emitting device which have high heat dissipation capability and are capable of reducing the decrease in luminescence intensity caused by increased output of an excitation light source. A wavelength conversion member 10 includes a matrix 2 and an inorganic phosphor 1 contained in the matrix 2 and has a relative density of 90% or more, a thermal conductivity of 10 W/m·K or more, and a quantum efficiency of 50% or more.

Abstract: An optical connector cleaning tool includes a supplier that supplies a cleaning element having a belt shape, a cleaning shaft including a head having a pressing surface that presses the cleaning element supplied from the supplier against a connection end surface of an optical connector and a supporter supporting the head part, a collector that collects the cleaning element from the pressing surface, and a tubular member having an inner hole accommodating the cleaning shaft such that the head protrudes from the inner hole. The cleaning element collected from the pressing surface to the collector passes between an inner surface of the inner hole and a first facing portion of the head facing the inner surface. The first facing portion includes a first region in which the cleaning element is interposed between the inner surface and the first facing portion and a second region adjacent to the first region.

Abstract: A cleaning tool includes: a first tape including an adhesive surface; a head around which the first tape is wrapped and that presses the adhesive surface against an object; a feeder that transports the first tape and a second tape in contact with the adhesive surface; and a separator that separates the first tape from the second tape during transportation of the first tape to the head.

Abstract: The glass contains a Ti component in a glass composition, in which a Ti3+ ion content is 80 ppm or less.

Abstract: An attachment cleaning tool includes: a cleaning tool; and an attachment detachably attached to the cleaning tool. The cleaning tool includes: cleaning bodies that clean connection end surfaces of ferrules of an optical connector; head members each that press the cleaning bodies against the connection end surfaces; nozzle members that respectively accommodate the head members; a feeding mechanism that supplies and withdraws the cleaning bodies with respect to the head members; and an accommodating body which accommodates the feeding mechanism. Each of the connection members of the attachment includes: an attachment portion attached to a tip portion of each of the nozzle members; and a tubular portion that protrudes from the attachment portion in a longitudinal direction of the nozzle members and into which one of the ferrules is inserted. The connection members move following a relative movement of the nozzle members in the lateral direction.

Abstract: A cleaning tool includes: a tool main body; an insertion part that moves in a predetermined direction relative to the tool main body, and is configured to hold a head unit movable backward and configured to press a cleaning body against a cleaning target; a retrieve mechanism that retrieves the cleaning body using a relative movement in the predetermined direction between the tool main body and the insertion part; and a rotation mechanism that rotates the head unit after the retrieve mechanism retrieves the cleaning body using the relative movement in the predetermined direction between the tool main body and the insertion part.

Abstract: A cleaning tool includes: a tool body; and an extension part extending from the tool body and including a head configured to press a cleaning body against a cleaning target. The head includes a conductor part made of a conductor.

Abstract: Provided are nanophosphor-attached inorganic particles that can suppress the degradation of the nanophosphor when sealed in glass, and a wavelength conversion member using the nanophosphor-attached inorganic particles. The nanophosphor-attached inorganic particle 10 include: inorganic particles 1 having an average particle diameter of 1 ?m or more; and a nanophosphor 2 attached to surfaces of the inorganic particles 1.

Abstract: The purpose is to provide a wavelength conversion member, a method for manufacturing the wavelength conversion member, and a light-emitting device, which are capable of reducing the temperature rise of the wavelength conversion member and thus reducing the decrease in luminescence intensity with time and deformation and discoloration of constituent materials. A wavelength conversion member 10 includes a matrix 1 and phosphor particles 3 dispersed in the matrix 1, wherein the matrix 1 is formed of a porous oxide body 2 having an average pore diameter of 50 ?m or less.

Abstract: A cleaning tool includes: a head including: a pressing part that presses a cleaning element against an object to be cleaned in a pressing direction, and having a first dimension in a width direction orthogonal to the pressing direction; and a neck part having a second dimension smaller than the first dimension in the width direction; and a housing that houses the head such that the pressing part and the neck part protrude from the housing in the pressing direction. A length of the housing in the width direction is equal to or greater than a length of protrusion of the pressing part protruding from the housing in the pressing direction.

Abstract: Provided are a wavelength conversion member, a light-emitting element, and a light-emitting device which have high heat dissipation capability and are capable of reducing the decrease in luminescence intensity caused by increased output of an excitation light source. A wavelength conversion member 10 includes a matrix 2 and an inorganic phosphor 1 contained in the matrix 2 and has a relative density of 90% or more, a thermal conductivity of 10 W/m·K or more, and a quantum efficiency of 50% or more.

Abstract: An optical connector includes: a ferrule that holds a tip of an optical fiber; a housing that houses the ferrule; a coupling that releases a latched state of the optical connector by moving to a rear side of the optical connector with respect to the housing; and a tab member that includes an operation section disposed farther toward the rear side of the optical connector than the coupling, and that causes the coupling to move to the rear side of the optical connector with respect to the housing when the operation section is pulled. The tab member is latched from the inside of the coupling.

Abstract: A cleaning tool includes: a head; and a cleaning body wrapped around the head. The head includes: a head body; and a projection that projects from the head body. The projection is retractable relative to the head body. The head may further include an elastic member that restores a positional relationship between the projection and the head body.

Abstract: The purpose is to provide a wavelength conversion member, a method for producing the wavelength conversion member, and a light-emitting device, which are capable of reducing the temperature rise of the wavelength conversion member and thus reducing the decrease in luminescence intensity with time and deformation and discoloration of constituent materials. A wavelength conversion member 10 includes thermally conductive particles 1 and phosphor particles 4 and the thermally conductive particles 1 include two types of thermally conductive particles different in average particle diameter from each other.

Abstract: An optical connector includes: a ferrule; a housing that houses a floating mechanism that retractably presses the ferrule; a coupling attached to an outside of the housing; and a boot attached to a rear side of a spring push of the floating mechanism. The spring push includes: a tube part; a flange section formed on an outer circumference of the tube part; a groove part formed closer to a front side of the tube part than the flange section; and a projection that protrudes outward from a portion of an outer surface of the groove part. The boot includes: a claw part that is formed on a front edge of a front opening of the boot and that hooks onto the groove part; and a recess that is formed in the front edge of the front opening of the boot and that engages with the projection.

Abstract: The purpose is to provide a wavelength conversion member, a method for manufacturing the wavelength conversion member, and a light-emitting device, which are capable of reducing the temperature rise of the wavelength conversion member and thus reducing the decrease in luminescence intensity with time and deformation and discoloration of constituent materials. A wavelength conversion member 10 includes a matrix 1 and phosphor particles 3 dispersed in the matrix 1, wherein the matrix 1 is formed of a porous oxide body 2 having an average pore diameter of 50 ?m or less.