Abstract: To provide a luminous flux control member capable of mitigating effects of leg parts on a luminance distribution in the luminous flux control member. [Solution] Provided is a luminous flux control member that controls distribution of light emitted from a light source. The bottom surface positioned on the light source side of the luminous flux control member has at least an inclined section inclined upward from the central axis side toward the periphery side of the luminous flux control member. Leg parts protruding toward the light source side are arranged on the inclined section. At least a part of the back side of the side surface of each leg part relative to the central axis includes a plane or a curved surface protruding toward the central axis side or toward the periphery side and having a radius of curvature equal to or greater than a radius of curvature of a central circumscribed circle that is centered around the central axis and that is tangent to the back side of the side surface of the leg part.

Abstract: This light bundle control member comprises an incident surface, an exit surface, a plurality of grooves, and a plurality of ridges. At least one of the incident surface and the exit surface has an elliptical cross section perpendicular to a central axis of the light bundle control member. The grooves are arranged on the back side of the light bundle control member successively from the central axis side toward the outer edge side of the light bundle control member. Each of the grooves includes a step surface positioned on the central axis side, and an inclined surface positioned on the outer edge side. The ridges are respectively arranged on the inclined surface of each of the grooves. Each of the ridges includes a first reflecting surface, a second reflecting surface, and a ridge line arranged between the first reflecting surface and the second reflecting surface.

Abstract: An electric connection socket for relaying electric signals between a circuit substrate and an electric component includes: a metal housing which has a through hole enabling communication between the top surface and the bottom surface thereof, and on the top surface of which the electric component is mounted and on the bottom surface of which the circuit substrate is mounted; and a signal pin inserted into the through hole to configure a coaxial line between the inner wall surfaces of the through hole, and which is electrically connected at one end to a signal path pad electrode of the circuit substrate and is electrically connected at the other end to a signal path terminal of the electric component. The metal housing is arranged on the circuit substrate such that an air gap is formed between the bottom surface of the metal housing and the top surface of the circuit substrate.

Abstract: A plastic helical gear has a three-dimensional tooth surface modification section on a tooth surface of each of involute-shaped teeth. The three-dimensional tooth surface modification section is a combined surface of a tooth top modification surface and an arc crowning surface. The tooth top modification surface is reduced in tooth thickness from a position between a tooth top and a tooth root toward the tooth top. The arc crowning surface is reduced in tooth thickness from a position between one end in the tooth width direction and the other end in the tooth width direction toward both ends in the tooth width direction. A line extending from an intersection point P0 between the starting position of the tooth top modification surface and the apex position of the arc crowning surface to the tooth root is aligned with a line on the tooth surface of the involute-shaped tooth.

Abstract: An opening/closing mechanism of a cover member that can easily push down the cover member by the lever member even if the force from the base member side to the cover member is increased, improving the operability of the lever member. A solution is that the lever member 17 is rotatably supported to the base member 23 by the first shaft 31, the link plate 29 is mounted to the lever member 17 by the second shaft 32, the cover member 15 is mounted to the link plate 29 by the third shaft 33, and the link plate 29 is rotated around the axis of the first shaft 31 in the direction in which the lever member 17 closes, so that the link plate 29 moves through the second shaft 32, and the link plate 29 moves, so that the cover member 15 is depressed through the third shaft 33.

Abstract: This emitter is constituted from an emitter body, a film, and a cover. The emitter has a water intake part, a discharge part, a first flow path, a second flow path, a flow reduction part, a flow path opening/closing part, a pressure-reducing flow path, and a bypass flow path. When the pressure of an irrigation liquid flowing through a tube is less than a first pressure, the irrigation liquid passes through the pressure-reducing flow path and the bypass flow path and is guided to the discharge part. When the pressure of the irrigation liquid flowing through the tube is equal to or greater than the first pressure, the second flow path is closed by the flow path opening/closing part, and the irrigation liquid taken in from the water intake part passes through the pressure-reducing flow path and is guided to the discharge part.

Abstract: A light flux control member has: a rear surface extending in the Y-axis direction; and a first incident plane, a second incident plane, and a third incident plane disposed on the rear surface side, said third incident plane reflecting light incident to the first incident plane. The light flux control member further has: a first reflecting plane disposed on the front side and reflecting, to one direction in the Y-axis direction, light incident to the first incident plane, light incident to the first incident plane and reflected on the third incident plane, and light incident to the third incident plane; and a second reflecting plane for reflecting light incident to the second incident plane to the other direction in the Y-axis direction. The light flux control member still further has two exit planes disposed sandwiching the first reflecting plane and the second reflecting plane and facing each other.

Abstract: An emitter having a water intake part, a discharge part, a channel, and a pressure reduction channel. The pressure reduction channel includes a groove and a plurality of projections. The plurality of projections include first and second projections that are adjacent to one another in the groove depth direction. The first projections are positioned on one side in the depth direction of the groove, and when seen from a planar view, the tip ends thereof project from the inside surface of the groove so as to cross the center line of the groove. The second projections are positioned on the other side in the depth direction of the groove, and when seen from a planar view, the tip ends thereof project from the inside surface of the groove so as not to cross the center line of the groove.

Abstract: The luminous intensity of light which is emitted from the light-emitting device and of which the angle with respect to the optical axis has the absolute value of from 0 to 60° is not more than 1.5% with respect to the maximum luminous intensity of light emitted from the light-emitting device. An angular range in which light of a luminous intensity of not less than 70% of the maximum luminous intensity is emitted, the absolute value of the maximum angle with respect to the optical axis is ?, an output surface is disposed so as to intersect a straight line of which the major angle, among the angles formed by the optical axis and a straight line passing a bottom surface-side end portion of the inclined surface and intersecting the optical axis, is not less than ?.

Abstract: To provide a socket for electrical component that allows an electrical component to be easily accommodated and to be able to be accommodated and be used even if the electrical component is large. The IC socket 10 comprises a socket body 13 accommodating an IC package 11; a cover member 15 for pressing the IC package 11; and a lever member 17 for pressing the cover member 15. The cover member 15 and the lever member 17 are rotatably connected to the same side end side of the socket body 13, and a pressing means 25, for pushing down the cover member 15 by closing the lever member 17 at the state that the cover member 15 is closed, is provided.

Abstract: A light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incidence surface and an emission surface, and is disposed such that, in a cross section of the light emitting device, light emitted at least ?1=81° from a light emission center of the light emitting element is incident on the rear surface of the light flux controlling member, and the emission surface is formed such that, in the cross section of the light emitting device, a curve of a graph with an abscissa of ?1 and an ordinate of ?2 includes an inflection point, wherein ?2 is an angle between a line orthogonal to the optical axis and a tangent to the emission surface at a point P, the point P being an arrival point of light emitted from the light emission center at angle ?1.

Abstract: An electric contact including a first member portion to be in contact with a first electric component and a second member portion to be in contact with a second electric component. The first member portion is formed to be tubular by an electrically conductive material plate member a part of which is formed of wave shape portions, and the first member portion includes a first contact portion to be in contact with the first electric component and a spring portion formed by the wave shape portions. The second member portion is constructed by a rod member and includes a second contact portion to be in contact with the second electric component and an insert portion inserted into the spring portion. The first and second contact portions are urged to separate each other while the first and second member portions are contracted with against urging force of the spring portion.

Abstract: A fluid chip suitable for a fluid device is disclosed in which an upper surface of a flow passage has another member bonded thereto. The disclosed fluid chip, in which a flow passage is formed, comprises a base material having a top surface forming at least a portion of a bottom surface of a flow passage, and a bonding member which is formed from an elastomer resin and an upper end surface of which is provided in a position higher than the top surface of the base material. The base material has a support post portion which projects from the top surface and defines the height of a side surface of the flow passage, and the support post portion of the base material is embedded in the bonding member.

Abstract: This light emitting device comprises a light emitting element and a light bundle control member. The light bundle control member includes an input surface, an output surface, a back surface, a leg portion, and a diffusion portion. An inner base portion on the radially inner side of the leg portion is positioned on the back side with respect to an outer base portion on the radially outer side. A radially outer side surface of the leg portion includes a partial output surface which is inclined to become closer to the front side with increasing distance from a central axis. Part of light emitted from the side surface of the light emitting element enters via the input surface, is emitted out of the partial output surface without passing through other surfaces, and again enters the light bundle control member from the diffusion portion.

Abstract: This detection device is provided with: a chip including a detection region for detecting a substance to be detected; a light source which emits excitation light; a detector for detecting the fluorescence emitted from a fluorescent substance which labels the substance to be detected, and which is excited by the excitation light; and an optical fiber which includes a core, and a cladding covering the outer peripheral surface of the core, guides, to the detection region, the excitation light emitted from the light source, and guides, to the detector, the fluorescence emitted from the fluorescent substance. The optical fiber is fixed to the chip directly or via a connector. The excitation light emitted from the light source is guided within the core, and reaches the detection region of the chip. The fluorescence emitted from the fluorescent substance is guided within the core and the cladding, and reaches the detector.

Abstract: An electrical contact and an electric component socket configured to be electrically connected to an electric component, wherein the electrical contact is capable of preventing a defect that a contacting portion of the electrical contact bites into a terminal of the electric component, leaving an indentation or giving rise to a state where burrs are liable to occur. An electrical contact has a contacting portion that comes in contact with a terminal of an electric component, the contacting portion includes a plurality of convex portions provided around a center in a tip portion of the contacting portion, the convex portions have flat portions on an outer circumferential side, and peak-shaped portions extending from the flat portions toward the center to come in contact with the terminal, and the contacting portion includes valley-shaped portions, each valley-shaped portion being formed between the respective convex portions in the plurality of convex portions.

Abstract: An optical receptacle has: a first optical surface, a first transmission part, a light separation part, a second optical surface and a third optical surface. The light separation part has a reflection part and a second transmission part. The first transmission part and two or more of a plurality of second transmission parts are present within an optical effectiveness region, where the optical effectiveness region is a region from a central axis to the radius of the larger of the first optical surface and the second optical surface, and the central axis is the optical axis of the light that impinges on the first optical surface and is emitted at the second optical surface.

Abstract: The purpose of the present invention is to provide an ultraviolet sterilization device that can increase the ultraviolet irradiance near the center of a treatment flow path even at a position far from a light emitting element. This ultraviolet sterilization device comprises: a flow path tube having a linear treatment flow path therein; a light emitting element for emitting ultraviolet rays; and a reflector having a reflection surface for reflecting ultraviolet rays emitted from the light emitting element and collecting and directing the ultraviolet rays to the flow path tube. The ultraviolet sterilization device irradiates a fluid flowing in the linear treatment flow path with ultraviolet rays and sterilizes the fluid.

Abstract: The present invention provides a lens (i.e., luminous flux control member) for an optical element of a backlight, capable of easily aligning the orientation in the plane direction. The luminous flux control member according to the present invention includes a lens main body and legs. The lens main body includes a light-entering area for light emitted from a light-emitting element to enter on the lower surface side and a light-emitting area for emitting the light entered from the light-entering area to the outside on the upper surface side. The legs are legs for mounting the luminous flux control member on a substrate on which the light-emitting element is mounted and are disposed on the lower surface of the lens main body so as to project downward.

Abstract: The optical receptacle of the present invention comprises an optical receptacle body and a support member. The optical receptacle body comprises: a first optical surface upon which is incident light transmitted from the photoelectric conversion element; a second optical surface that emits light transmitted from the photoelectric conversion element to the light transmission medium. The support member comprises a support member body that includes a mounting surface for mounting on a substrate, and a second mating part that mates with the first mating part and that is positioned at a position on the inside of the support member body at a position corresponding to the first mating part. The optical receptacle is positioned on the support member side of the mounting surface.