Abstract: This optical module has a photoelectric conversion device including a light emitting element, and an optical receptacle for optically coupling an end face of an optical transmission body connected thereto and a light receiving face of a light receiving element. The optical receptacle includes a first optical face on which light emitted from the end face of the optical transmission body is incident, and a second optical face for emitting, toward the light receiving face of the light receiving element, the light incident on the first optical face. An irradiation spot of emitted light from the second optical face on a virtual plane including the light receiving face of the light receiving element is sufficiently large to encompass the entire light receiving face.

Abstract: This light-emitting device has a light-emitting element and a light flux control member. The light flux control member has an entry surface, a light control surface, a back surface, and a ring-shaped groove. The light control surface includes a first transmission portion, a total reflection portion, and a second transmission portion. The ring-shaped groove includes a first inner surface and a second inner surface. A second light beam, which is a light beam that is part of the light beam emitted from the light-emitting center of the light-emitting element, enters the interior of the light flux control member at the entry surface, is totally reflected at the total reflection portion, then internally reflected at the second inner surface, and exits from the second transmission portion to the exterior of the light flux control member.

Abstract: An electrical contact and an electric component socket, in which a plurality of protruding portions come in contact with a terminal of an electric component, ensuring to prevent the defect of a large flaw formed on the terminal as well as improve durability of the electrical contact. An electrical contact 15 includes a contacting portion 31 which comes in contact with a terminal 2a of an electric component 2. The contacting portion 31 includes a plurality of convex portions 38 around a center 31b of a tip portion 31a of the contacting portion 31. The convex portion 38 has a plurality of protruding portions 35 on a tip of a mountain-shaped portion of the convex portion 38. The electrical contact 15 is configured to bring the plurality of protruding portions 35 into contact with the terminal 2a to achieve the electrical connection to the electric component 2.

Abstract: A light bundle control member of the present invention comprises: an entry plane on which light emitted from a light emitting element becomes incident; two reflecting planes which are arranged across the entry plane in positions opposing the light emitting element, and which respectively reflect some of the light entering via the entry plane in two directions that are substantially perpendicular to the optical axis of the light emitting element and opposed to each other; and two output planes which are arranged opposing each other across the two reflecting planes, and which respectively cause the light reflected by the two reflecting planes to be externally output. Each of the two output planes has a plurality of first ridges arranged thereon, wherein, as viewed from the output plane side, a ridge line of the plurality of first ridges is substantially parallel with the optical axis of the light emitting element.

Abstract: A nozzle plate has a plurality of blades in the area that surrounds the nozzle hole on the outer plane of the bottom wall part. When the fuel is injected from the nozzle hole and the pressure in the vicinity of the nozzle hole is reduced, the plurality of blades guide a flow of air from the radially outward side of the bottom wall part to the radially inward side of the bottom wall part and generates a swirling flow of the air about the center of the bottom wall part. The swirling flow of the air about the center of the bottom wall part changes to a helical flow by receiving kinetic momentum from fine particles of the fuel injected from the nozzle hole and the helical flow of the air transports the fine particles of the fuel.

Abstract: This marker comprises a plurality of convex-surface section disposed along the X-axis direction and a plurality of detection sections disposed so as to face the convex-surface sections. Each of the detection sections is located, in the protruding direction of the convex-surface sections, closer to the convex-surface section side than a focal point on an image surface of the convex-surface section of the first optical unit in the X direction and is located on a single plane located further on the opposite side from the protruding direction than the edge of the image surface. The image surface extends from the first optical unit to the nth optical unit in the X direction, where n is at least 2.

Abstract: In a light flux controlling member (140), light emitted from a light-emitting element enters from an incidence region (141), and is emitted from an emitting region (142). The light-incidence region (141) includes a plurality of protrusions. The protrusions have ridgelines that are connected between two of four virtual lines that are adjacent to each other, the virtual lines joining an intersecting point and a vertex point of diagonal lines of a first virtual quadrangle. Valleys are formed between the plurality of protrusions. The planar shape of the ridge lines is an arc, and the radius of curvature of the ridge lines is greater than the distance from the intersection point of the diagonal lines of the first virtual quadrangle to the midpoint of the ridge lines.

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 luminous flux control member has an entry region, a first fully reflective surface, an exit surface, a second fully reflective surface, a third fully reflective surface, and a connection surface. Some of the light emitted by the light-emission element enters via the entry region, subsequently reflects off the first fully reflective surface, and exits from the exit surface. The remainder of the light emitted by the light-emission element enters via the entry region, reflects off the second fully reflective surface and the third fully reflective surface in the stated order, exits from the connection surface, enters again via the first fully reflective surface, and subsequently exits from the exit surface.

Abstract: The problem addressed by the present invention is to provide: an optical receptacle that can be easily positioned with a photoelectric converter having a light-emitting element and a detection element. In order to solve the problem, an optical receptacle is provided, said optical receptacle being positioned between a light transmission medium and a photoelectric converter having a substrate, a photoelectric conversion element and a detection element, and the purpose of the optical receptacle being to optically couple the photoelectric conversion element and the end surface of the light transmission medium. The optical receptacle comprises a filter, a holding member for holding the filter, and a receptacle body. In the optical receptacle the holding member and the receptacle body are separate bodies, and the filter reflects towards the detection element side, as monitor light, part of the light emitted from the photoelectric conversion element, and transmits the remainder as signal light.

Abstract: An electric contact configured to make a section between a first contact part and a second contact part extendable/contractible. A spring part has a wave-like shape by continuously forming wave-shaped parts alternately on one and the other sides of an axis L as a center for connecting the first contact part and the second contact part, and is formed into a cylindrical shape while having a projection of the wave-shaped part on one side confronting a recess between projections of the wave-shaped parts on the other side. The projection of the wave-shaped part on the one side enters into the recess between the wave-shaped parts on the other side to bring the projection on the one side into abutment on the projection adjacent to the recess upon contraction of the spring part to stop a contracting motion, and establish a conduction state between the projections abutted on each other.

Abstract: An IC socket includes: a heat transfer member attached to a socket body in a manner capable of contacting an electrical component and having an opening penetratingly formed at a contact surface that contacts the electrical component accommodated in the socket body; and a temperature sensor that is mounted in the opening of the heat transfer member and has a rod-like tip end portion including a thermosensitive element and extending toward the electrical component, in which the tip end portion, as well as the heat transfer member, contacts the electrical component. In the IC socket, a tubular component having an insertion hole in which an outer surface of a portion of the temperature sensor other than the tip end portion is fitted in a slidable manner in the axial direction of the temperature sensor, is attached to the opening.

Abstract: This light flux control member has an incidence surface and an emission surface. The emission surface includes a first emission surface projecting toward the back side and disposed so as to cross the central axis, and a second emission surface projecting toward the front side and disposed so as to surround the first emission surface. When the light-emitting element is disposed so as to face the recessed part such that a light emission center thereof is located on the central axis, and a surface to be irradiated is disposed above the emission surface so as to lie at right angles to the central axis, a second maximum value calculated by a predetermined expression is larger than a first maximum value calculated by a predetermined expression.

Abstract: A liquid handling device has an accommodation part for accommodating a liquid, two or more flow paths each opening to a lower part of a side wall surface of the accommodation part, and a liquid movement suppression part that is disposed in the lower part of the side wall between the openings of two of the flow paths that are adjacent to each other and slows or stops the movement of the liquid along the corner formed by the lower surface of the accommodation part and the side wall surface.

Abstract: A reflection member includes at least one polygonal cell having a polygonally-shaped center bottom part in which a light source is disposed, vertex-part inclined surfaces provided so as to correspond to the respective vertexes of the polygonal shape, and side-part inclined surfaces provided between the corresponding vertex-part inclined surfaces, such that an inclination angle ? of at least a part of the vertex-part inclined surfaces to the center bottom part is larger than an inclination angle ? of the side-part inclined surfaces to the center bottom part.

Abstract: A composite (100) comprises: an integrally molded article of two or more function parts (111) made of a cured material of a liquid resin composition and two or more connection parts (112); and a retention part (120) made of a resin composition different from the liquid resin composition and having two or more through-holes (121) or concave parts. The function parts (111) are respectively arranged inside the through-holes (121) or the concave parts of the retention part (120). The connection parts (112) are joined to a surface of the retention part (120).

Abstract: This optical receptacle is provided with: a first optical surface; a second optical surface; a first recess; a second recess; an inclined surface; insertion holes; through holes; and reference parts. The second optical surface and the inclined surface face each other at inside surfaces of the first recess. The inclined surface is inclined so as to extend away from the second optical surface as the inclined surface approaches an opening of the first recess. First openings which are open at the inclined surface and second openings which are open at an inside surface of the second recess are provided at both ends of the linear insertion holes. The thorough holes face the second openings on the central axes of the insertion holes. The reference parts are provided to the surface at the side at which the first recess and the second recess are open.

Abstract: An electrical component socket includes a socket body arranged on a circuit board and including a receiving portion configured to receive an electrical component. The socket body includes an arrangement portion in which a row of contact pins to be in contact with leads of an IC package is arranged. At least one of these contact pins and another one of the contact pins adjacent to the at least one of the contact pins have an arrangement pitch that is narrower than a pitch between the terminals of the electrical component, and the other one of the contact pins and still another one of the contact pins adjacent to the other one of the contact pins have an arrangement pitch that is substantially equal to the pitch between the terminals of the electrical component.

Abstract: Contact pins are provided to a socket main body for accommodating an IC package so as to be in contact with connection terminals of the IC package accommodated in the socket main body. Each contact pin includes a conductive substrate and multiple layers laminated on the surface of the substrate, including: an underlying layer formed on the substrate by Ni plating; a first surface layer formed on the underlying layer by Pd—Ni alloy plating; a second surface layer formed on the first surface layer by Ni plating, thus allowing Sn from the corresponding connection terminal to diffuse into the second surface layer at a rate lower than into a conventional plated Ag layer; and an outermost surface layer formed on the second surface layer by Au plating to serve as an electrical contact layer.

Abstract: The optical receptacle according to the present invention has a first optical element and a second optical element. The first optical element and the second optical element are coupled to each other via a first fitting part of the first optical element and a second fitting part of the second optical element. The first optical element has a first optical surface and a second optical surface. The second optical element has a third optical surface, a fourth optical surface and a light-separating part.