Abstract: A focal length adjusting device is provided with: a retention unit for retaining a first lens; a guide unit for supporting the retention unit so as to allow movement along an optical axis of laser light; a stepper motor that has a shaft body and is arranged so that the central axis of the shaft body is orthogonal to the optical axis; and a conversion unit that is interposed between the shaft body and the retention unit and converts rotational movement of the shaft body into linear movement of the retention unit. The conversion unit comprises, between itself and the retention unit, a coupling unit that transmits kinetic force from the conversion unit to the retention unit in a direction parallel to the optical axis but does not transmit same in a direction parallel to the central axis of the shaft body.

Abstract: An oscillator unit has: a housing for housing a laser beam source and a laser beam source drive circuit; and connection portions connected to cables at a side of the housing, connection portions connected to cables at the side, and a connection portion connected to an optical fiber cable at the side.

Abstract: A wireless network control system includes a macrocell base station configured to form a macrocell, at least one small cell base station configured to form a small cell disposed within the macrocell, and a control apparatus including a controller configured to execute a process of acquiring a first value indicating a traffic state of a wireless terminal using the macrocell and a second value indicating a traffic state of a wireless terminal using the small cell, and a process of setting OFF the small cell when an added value of the first value and the second value falls within a predetermined range related to the macrocell.

Abstract: An apparatus stores first identification information in association with each of a plurality of base stations, where the first identification information identifies locations included in a wireless area that is formed according to transmission power control by each of the plurality of base stations. The apparatus controls, based on parameters indicating wireless communication capability at a target location that is included in a first wireless area formed by a first base station and identified by the first identification information, transmission power of a second base station which forms a second wireless area including the target location.

Abstract: An apparatus stores first identification information in association with each of a plurality of base stations, where the first identification information identifies locations included in a wireless area that is formed according to transmission power control by each of the plurality of base stations. The apparatus controls, based on parameters indicating wireless communication capability at a target location that is included in a first wireless area formed by a first base station and identified by the first identification information, transmission power of a second base station which forms a second wireless area including the target location.

Abstract: A wireless network control system includes a macrocell base station configured to form a macrocell, at least one small cell base station configured to form a small cell disposed within the macrocell, and a control apparatus including a controller configured to execute a process of acquiring a first value indicating a traffic state of a wireless terminal using the macrocell and a second value indicating a traffic state of a wireless terminal using the small cell, and a process of setting OFF the small cell when an added value of the first value and the second value falls within a predetermined range related to the macrocell.

Abstract: According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.

Abstract: A laser marking apparatus is provided with a laser emission unit that emits laser beam and a laser radiation unit that is detachably connected to the laser emission unit. The laser radiation unit radiates the laser beam emitted from the laser emission unit toward an object to be processed. A projection, which projects rearward, is formed on a part of the laser radiation unit that is connected with the laser emission unit. A recess is provided in a part of the laser emission unit that is connected with the laser radiation unit. The projection can fit into the recess. The recess is opened forward, backward, to lateral sides, and downward.

Abstract: A lever member of a lever assisted insertion device engages with a front frame of a shelf before a fully inserted position of a substrate unit to form a leverage fulcrum on the front frame. A force that an operator applies to the lever member is transmitted to the substrate unit via a point of application with respect to the fulcrum, thereby inserting the substrate unit up to the fully inserted position. A buffering device abuts against the front frame of the shelf within a depth range of a front panel of the substrate unit before an operation start position at which the lever member engages with the front frame of the shelf, to absorb impact of the substrate unit at the time of insertion.

Abstract: An air blowing device including; a fan mounted on at least one of an upper part and a lower part of a shelf; a louver having a louver board that extends in a direction intersecting with a direction of plugging in of a plug-in unit; and a louver controller to control the direction of the louver board based on a change of the mounting status of plug-in units housed in the shelf.

Abstract: A lever member of a lever assisted insertion device engages with a front frame of a shelf before a fully inserted position of a substrate unit to form a leverage fulcrum on the front frame. A force that an operator applies to the lever member is transmitted to the substrate unit via a point of application with respect to the fulcrum, thereby inserting the substrate unit up to the fully inserted position. A buffering device abuts against the front frame of the shelf within a depth range of a front panel of the substrate unit before an operation start position at which the lever member engages with the front frame of the shelf, to absorb impact of the substrate unit at the time of insertion.

Abstract: A determining method includes: holding a cooled device in a container; detecting a temperature inside the container; detecting a temperature outside the container; facilitating a airflow through an air filter that allows air to flow therethrough between the container and a space outside the container; calculating a packing density of components of the cooled device; detecting a power consumption of the cooled device; detecting the number of revolutions of a fan that facilitates the flow of air through the air filter; and determining that the air filter is clogged when the power consumption is less than or equal to a power threshold value, the number of revolutions is within a specified range, and a difference between the temperature inside the container and the temperature outside the container exceeds a temperature threshold value that depends on the packing density and the power consumption.

Abstract: A printed circuit board unit is configured so that, when a charged electrical circuit unit is electrically connected to the printed circuit board unit, first, the ground potential of the electrical circuit unit is dropped to the frame ground potential, and next, the ground potential of the electrical circuit unit is dropped to the ground potential of an electrical circuit on the printed circuit board unit.

Abstract: An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust opening when the electronic device has a predetermined temperature, wherein the door part is rotated based on the own weight of the door part and a wind pressure of the air taken in the electronic device and exhausted outside the electronic device, so that the exhaust opening is closed.

Abstract: A heat transfer mechanism for dissipating heat from a heat generating body to a heat dissipating part, realizing both a high elasticity and a high thermal conductivity, comprised of a film-shaped heat conductor for transferring heat to the heat dissipating part and an elastic member for imparting elasticity to the film-shaped heat conductor, the film-shaped heat conductor being formed from metal foil-type flexible heat pipes or carbon-based thermal conductive sheets.

Abstract: A heat transfer mechanism for dissipating heat from a heat generating body to a heat dissipating part, realizing both a high elasticity and a high thermal conductivity, comprised of a film-shaped heat conductor for transferring heat to the heat dissipating part and an elastic member for imparting elasticity to the film-shaped heat conductor, the film-shaped heat conductor being formed from metal foil-type flexible heat pipes or carbon-based thermal conductive sheets.

Abstract: An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust opening when the electronic device has a predetermined temperature, wherein the door part is rotated based on the own weight of the door part and a wind pressure of the air taken in the electronic device and exhausted outside the electronic device, so that the exhaust opening is closed.

Abstract: According to an aspect of an embodiment, a wiring connection apparatus comprises a tray including a plurality of wiring connection members for connecting a plurality of wiring and a tray holder body, which holds the tray, wherein the tray is rotatably provided in the tray holder body, and a wiring introduction opening for introducing the plurality of wiring into the tray is formed in proximity to an axis of rotation of the tray.

Abstract: A communication device which has high cooling efficiency and can be reduced in size and weight. The communication device in which a plurality of electronic circuit boards are mounted to a back wiring board (BWB) includes a casing containing the electronic circuit boards as a unit, an intake fan unit for introducing air into the casing to cool the electronic circuit boards, and a discharge fan unit having a plurality of blower fans each arranged such that air intake and discharge directions thereof form an angle of nearly 90 degrees, the blower fans discharging the air introduced into the casing. Combined use of an axial fan and the blower fans permits air to be introduced into and discharged from the casing from rear and front sides, respectively, of the casing, whereby spaces that the fan units occupy in the communication device can be reduced.

Abstract: The present invention relates to a fan unit used for forced air cooling, a motherboard with predetermined wiring formed as a wiring pattern, disposed on the rear face of an equipment, and an electronic equipment provided with the fan unit and the motherboard. It is an object of the present invention to reliably maintain appropriate forced air cooling at low cost. For this purpose, the fan unit of the present invention measures temperatures of predetermined places in parallel, processes each of combinations of these temperatures, outputs the processing result via lines whose number is equal to the number of the combinations, and maintains the revolving speed of fans at a value suitable for the processing result obtained via these lines.