Abstract: A testing device includes a contactless measurement unit configured to measure a thickness of a test object and a probe needle configured to move by a distance in accordance with the thickness measured by the measurement unit to come into contact with an electrode of the test object.

Abstract: An image forming apparatus includes a fixing device to heat a recording material at a use position, an opening and closing member, and a drawer unit. In a state where the fixing device is at the use position, part of the fixing device is located in a space for the drawer unit to pass through when moved from a first inner position to a first outer position so that movement of the drawer unit from the first inner to the first outer position is restricted. The fixing device is retracted from the use position to a retracted position so that the movement of the drawer unit from the first inner to the first outer position is allowed. Part of the fixing device at the retracted position is at a position higher than a position of an upper cover portion of the opening and closing member at a closed position.

Abstract: An image forming apparatus to form an image on a recording material includes an apparatus main body having a first end provided with an opening and having a second end, a fixing device to heat the recording material, an opening and closing member, a drawer unit having a first photosensitive drum, and a transfer device. When being moved from a first inner position inside the apparatus main body to a first outer position outside the apparatus main body through the main body opening, the drawer unit is to be moved in a moving direction intersecting with a rotation axis of the first photosensitive drum, and is to be moved away from the second end. When being moved from a second inner position inside the apparatus main body to a second outer position outside the apparatus main body, the transfer device is moved away from the second end.

Abstract: An image forming apparatus includes an apparatus main body, a drawer unit, and a transfer device including a belt. The drawer unit includes a first cartridge, a support member to which the first cartridge is detachably attached, and a first photosensitive drum disposed on the support member or the first cartridge. The drawer unit is moved to a first inner position inside the apparatus main body and to a first outer position outside the apparatus main body. The transfer device is moved to a second inner position inside the apparatus main body and to a second outer position outside the apparatus main body. The belt contacts the first photosensitive drum with the transfer device at the second inner position. The transfer device is moved from the second inner to the second outer position when the drawer unit is moved from the first inner to the first outer position.

Abstract: An image forming apparatus includes an apparatus main body, a drawer unit, and a transfer device a including a belt. When image formation on a recording material is performed, the drawer unit is at a first apparatus main body inner position and the transfer device is at a second apparatus main body inner position. In this drawer unit state, (a) a part of the transfer device is disposed downstream of the drawer unit in a moving direction in which the drawer unit moves from the first inner position to a first apparatus main body outer position, and (b) in a vertical direction, an area where the part of the transfer device is positioned overlaps, at least in part, with an area where the drawer unit is positioned. The transfer device includes a cleaning member to clean the belt and is accommodated in the part of the transfer device.

Abstract: A method for fabricating an optical connecting device with a holder having a through hole, multiple optical fibers, a guide member, and a resin body includes steps of: preparing optical-fiber parts to provide the multiple optical fibers; preparing first and second parts to provide the holder, the first and second parts having grooves for providing the through hole of the holder; fixing the parts providing the holder and the optical-fiber parts to each other to form a first product having the through hole produced from the grooves; providing an optical connector tool; positioning a component of the tool in the through hole of the first product to provide the guide member; and thereafter, fixing the component in the through hole with resin to form a second product in which the resin provides the resin body.

Abstract: An optical module that enables to couple a semiconductor optical device with a photonic device by a preset angle is disclosed. The optical module provides a housing that installs the semiconductor optical device. The housing provides a bottom with a bottom opening, a ceiling facing the bottom, and at least one side wall connecting the ceiling to the bottom. The side wall includes an outer surface extending along a direction normal to the bottom and an inner surface making an acute angle against the outer surface. The semiconductor optical device is mounted on the inner surface facing the one end thereof against the bottom opening to optically couple with an optical signal through the bottom opening.

Abstract: A semiconductor light emitting apparatus includes: a stem part having a stem base, a lead terminal, and a metal member having a closed shape, the stem base having an inner portion having a first face, a second face and an opening extending in a first direction from the first face to the second face, and an outer portion surrounding the inner portion, the inner and outer portions being arranged along a reference plane intersecting the first direction, the lead terminal being supported in the opening, and the metal member being disposed on the outer portion so as to surround the inner portion and having a first portion supported by a top face of the outer portion, and a second portion extending outward with reference to an edge of the outer portion; a semiconductor optical element disposed on the inner portion; and a cap disposed on the metal member.

Abstract: A semiconductor device includes: a printed substrate having a through hole from an upper face to a lower face thereof; a first semiconductor element mounted on the printed substrate; an interposer mounted on the upper face of the printed substrate; a second semiconductor element adjacent to the interposer and arranged to overlap with the through hole; and a bonding wire coupling a first pad to a second pad, the first pad being on an upper face of the interposer and being positioned on the second semiconductor element side, the second pad being on an upper face of the second semiconductor element and being positioned on the interposer side, wherein the interposer has an edge face protruding with respect to a wall face of the through hole of the printed substrate toward the second semiconductor element, and the edge face faces with an edge face of the second semiconductor element.

Abstract: A semiconductor device includes: an interposer mounted on an upper surface of a printed board; a first semiconductor element mounted on an upper surface of the interposer; a second semiconductor element mounted on the upper surface of the printed board and performing conversion between an optical signal and an electrical signal; and a bonding wire connecting a first pad and a second pad, the first pad being provided on the upper surface of the interposer, the second pad being provided on an upper surface of the second semiconductor element, the first semiconductor element lowers a speed of an electrical signal input from the second semiconductor element and outputs the electrical signal to the printed board, and increases a speed of an electrical signal and outputs the electrical signal to the second semiconductor element via the interposer and the bonding wire.

Abstract: An optical fiber connector that optically couples a first optical fiber to a second optical fiber is disclosed. The optical fiber connector includes a first ferrule having a first through hole and a first end face, the first through hole receiving the first optical fiber; a second ferrule having a second through hole and a second end face, the second through hole receiving the second optical fiber, the second end face being apart from the first end face with a gap; a sleeve having a third through hole receiving the the first ferrule and the second ferrule; and an adhesive provided in the gap between the first and the second end faces. The first ferrule and the second ferrule are to be fixed to an inner peripheral surface of the sleeve with the adhesive.

Abstract: An optical connecting device includes: a holder having a first end, a second end, and a through hole extending in a direction of a first axis from one of the first end and the second end to the other; multiple optical fibers held by the holder; a guide member extending in the through hole; and a resin body separating a side face of the guide member from an inner face of the through hole.

Abstract: An optical processing device includes a semiconductor optical device, and an optical device provided on the semiconductor optical device. The optical device includes one or more optical fibers and a holder having a supporting block, a reflecting plate, and an intermediate layer. The supporting block has first to third end surfaces at one end. The first end surface extends from a bottom surface of the holder to claddings of the optical fibers. The second end surface extends along an axis intersecting the first end surface. The third end surface is oblique with respect to the axis at an angle greater than zero degrees and less than 90 degrees. The optical fibers have facets exposed at the third end surface. The intermediate layer embeds roughness in the exposed facets. It has a refractive index comparable to that of the claddings of the optical fibers.

Abstract: An optical device includes one or more optical fibers and a holder having a supporting block, a reflecting plate, and an intermediate layer. The supporting block has a first to a third end surfaces at one end. The first end surface extends from a bottom surface of the holder to claddings of the optical fibers. The second end surface extends along a first axis intersecting the first end surface. The third end surface is oblique with respect to the first axis at an angle greater than zero degrees and less than 90 degrees. The optical fibers extend in the supporting block and is exposed to the third end surface. The reflecting plate is provided on the third end surface via the intermediate layer. Light from the optical fiber passes through the third end surface which has some roughness, and is reflected by a surface of the reflecting plate.

Abstract: A semiconductor device includes: a printed substrate having a through hole from an upper face to a lower face thereof; a first semiconductor element mounted on the printed substrate; an interposer mounted on the upper face of the printed substrate; a second semiconductor element adjacent to the interposer and arranged to overlap with the through hole; and a bonding wire coupling a first pad to a second pad, the first pad being on an upper face of the interposer and being positioned on the second semiconductor element side, the second pad being on an upper face of the second semiconductor element and being positioned on the interposer side, wherein the interposer has an edge face protruding with respect to a wall face of the through hole of the printed substrate toward the second semiconductor element, and the edge face faces with an edge face of the second semiconductor element.

Abstract: A semiconductor light emitting apparatus includes: a stem part having a stem base, a lead terminal, and a metal member having a closed shape, the stem base having an inner portion having a first face, a second face and an opening extending in a first direction from the first face to the second face, and an outer portion surrounding the inner portion, the inner and outer portions being arranged along a reference plane intersecting the first direction, the lead terminal being supported in the opening, and the metal member being disposed on the outer portion so as to surround the inner portion and having a first portion supported by a top face of the outer portion, and a second portion extending outward with reference to an edge of the outer portion; a semiconductor optical element disposed on the inner portion; and a cap disposed on the metal member.

Abstract: An optical device includes one or more optical fibers and a holder having a supporting block, a reflecting plate, and an intermediate layer. The supporting block has a first to a third end surfaces at one end. The first end surface extends from a bottom surface of the holder to claddings of the optical fibers. The second end surface extends along a first axis intersecting the first end surface. The third end surface is oblique with respect to the first axis at an angle greater than zero degrees and less than 90 degrees. The optical fibers extend in the supporting block and is exposed to the third end surface. The reflecting plate is provided on the third end surface via the intermediate layer. Light from the optical fiber passes through the third end surface which has some roughness, and is reflected by a surface of the reflecting plate.

Abstract: An optical communication apparatus includes a fiber stub, a planar waveguide device optically connected to the fiber stub, and a resin body. The fiber stub includes a holder and an optical fiber held by the holder, the holder having first and second portions arranged along a first reference plane. The resin body connects the planar waveguide device to the fiber stub. The first portion of the holder has first and second end faces, and has a first hole for the optical fibers extending from first to second end faces. The second portion of the holder has third and fourth end faces, and has a second hole for a guide pin. A first distance between the first and the second end faces is larger than a second distance between the third and fourth end faces.

Abstract: An optical device comprises optical fibers and a holder. The holder includes one end portion, an other end portion, and a supporting portion extending in a direction of a first axis from the one end portion to the other end portion. The one end portion includes a first end face extending along a first reference plane intersecting with the first axis from a side of the holder to cladding regions of the optical fibers; a second end face extending along a second reference plane from the one end portion to the other end portion; and a third end face extending along a third reference plane inclined at an angle of less than 90 degrees and more than zero degrees relative to the first axis. The cladding regions of the optical fibers are disposed at the second end face. The optical fibers have respective tips disposed at the third end face.

Abstract: An optical device comprises optical fibers and a holder. The holder includes one end portion, another end portion, and a supporting portion extending in a direction of a first axis from the one end portion to the other end portion. The one end portion includes a first end face extending along a first reference plane intersecting with the first axis from a side of the holder to cladding regions of the optical fibers; a second end face extending along a second reference plane from the one end portion to the other end portion; and a third end face extending along a third reference plane inclined at an angle of less than 90 degrees and more than zero degrees relative to the first axis. The cladding regions of the optical fibers are disposed at the second end face. The optical fibers have respective tips disposed at the third end face.