Abstract: Provided are a communication system and a communication device capable of suppressing attenuation of a communication signal superimposed upon a control pilot line. This output circuit (20) sends a control pilot signal which has been generated at a voltage generation source (21) to an input circuit (60). Between the control pilot line (4) and the ground line (3) of the output side of the output circuit (20), a communication unit (30) is connected via a transformer (31). Between the control pilot line (4) and the ground line (3) of the input side of the input circuit (60), a communication unit (70) is connected via a transformer (71). Between the output circuit (20) and the transformer (31), a lowpass filter (33) is interposed. Between the input circuit (60) and the transformer (71), a lowpass filter (73) is interposed.

Abstract: Provided is a conversion device which can determine the presence/absence of a failure in a detection unit for detecting AC or DC voltage or current. A conversion device 23, including an AC-DC conversion circuit 4, a DC-DC conversion circuit 5 for converting DC voltage output from the AC-DC conversion circuit 4 and a detection unit for detecting AC or DC voltage or current, comprises an obtaining part for obtaining information indicating whether or not AC voltage is applied to the AC-DC conversion circuit 4, and a power supply fault determination part for determining presence/absence of a power supply fault or an open fault in the detection unit if the obtained information indicates that AC voltage is not applied to the AC-DC conversion circuit 4.

Abstract: A mobile terminal device is provided with a display module including a display surface; a detection module configured to detect the position on the display surface having been touched by a user; a tactile sense information output module configured to output tactile sense information; an output control module configured to control the tactile sense information output module; a region setting module configured to set, on the display surface, a plurality of input regions each of which information constituting a password is assigned to; and a determination module configured to determine, based on a detection result by the detection module, whether or not any of the input regions has been touched. When the determination module determines that any of the input regions has been touched, the output control module makes the tactile sense information output module output the tactile sense information corresponding to the information assigned to the touched input region.

Abstract: A communication system, a charging control device, a vehicle, and a power supply device are provided, which prevent noise from flowing into a communication device which transmits and receives a communication signal, in communication such as inband communication in which the vehicle and the power supply device are connected via a charging cable containing a power supply line, a grounding line, and a control line, and the communication signal is transmitted and received by using the grounding line and the control line as media. There are provided: a charging control device connected to a grounding line and a control line, and configured to transmit and receive a control signal; a communication device connected to two branch lines branched from the grounding line and the control line, respectively; and a common mode choke coil interposed in the grounding line and the control line, and located between the charging control device and two branch lines.

Abstract: An output circuit sends a control pilot signal generated in a voltage generator to an input circuit. A communication unit is connected between an earthed wire and a control pilot wire on the output side of the output circuit via a bandpass filter. A communication unit is connected between the earthed wire and the control pilot wire on the input side of the input circuit via a bandpass filter. A low-pass filter is interposed between the output circuit and the communication unit. A low-pass filter is interposed between the input circuit and the communication unit.

Abstract: This output circuit sends a control pilot signal which has been generated at a voltage generation source to an input circuit. Between the control pilot line and the ground line of the output side of the output circuit, a communication unit is connected via a transformer. Between the control pilot line and the ground line of the input side of the input circuit, a communication unit is connected via a transformer. Between the output circuit and the transformer, a lowpass filter is interposed. Between the input circuit and the transformer, a lowpass filter is interposed.

Abstract: Provided are a communication system and a communication device capable of suppressing attenuation of a communication signal superimposed upon a control pilot line. This output circuit (20) sends a control pilot signal which has been generated at a voltage generation source (21) to an input circuit (60). Between the control pilot line (4) and the ground line (3) of the output side of the output circuit (20), a communication unit (30) is connected via a transformer (31). Between the control pilot line (4) and the ground line (3) of the input side of the input circuit (60), a communication unit (70) is connected via a transformer (71). Between the output circuit (20) and the transformer (31), a lowpass filter (33) is interposed. Between the input circuit (60) and the transformer (71), a lowpass filter (73) is interposed.

Abstract: An output circuit sends out, to an input circuit, a control pilot signal generated by a voltage source. A voltage transformer is provided to a control pilot line on the output side of the output circuit, and a communication unit transmits and receives communication signals via the voltage transformer. A voltage transformer is provided to the control pilot line on the input side of the input circuit, and a communication unit transmits and receives the communication signals via the voltage transformer. A low-pass filter is provided to the control pilot line between the input circuit and the voltage transformer.

Abstract: A mobile device provided with a display function includes a display surface on which a screen as a target to be operated is displayed; a touch detection module which detects a touch operation on the display surface; an operation specifying module which specifies the kind of the touch operation on the display surface on the basis of results of detection by the touch detection module; and a function execution module which executes a function according to the kind of the touch operation specified by the operation specifying module. In this configuration, the function execution module restricts execution of a function corresponding to a touch operation of a predetermined kind in a restriction area provided in at least a part of an inner peripheral edge of the display surface.

Abstract: Provided are a lens unit and a vehicle-mounted infrared lens unit capable of correcting a focal shift due to a temperature change without increasing the apparatus size, complicating a production process, and increasing the costs. In a vehicle-mounted infrared lens unit 4 configured such that a plurality of infrared lenses are held by a barrel 30 and a spacer 40 is interposed between two infrared lenses, a first infrared lens 10 is held sandwiched between the spacer 40 and a lens holding portion 31 of the barrel 30. The spacer 40 and the barrel 30 are formed of materials having different thermal expansion coefficients. An O-ring 60 is interposed between a lock portion 32 of the lens holding portion 31 and the first infrared lens 10. Thermal expansion of the spacer 40 allows the first infrared lens 10 to move in the axial direction against the elastic force of the O-ring 60. When the spacer 40 is shrunken, the elastic force of the O-ring 60 allows the first infrared lens 10 to move in the opposite direction.

Abstract: Provided are a lens unit and a vehicle-mounted infrared lens unit capable of correcting a focal shift due to a temperature change without increasing the apparatus size, complicating a production process, and increasing the costs. In a vehicle-mounted infrared lens unit 4 configured such that a plurality of infrared lenses are held by a barrel 30 and a spacer 40 is interposed between two infrared lenses, a first infrared lens 10 is held sandwiched between the spacer 40 and a lens holding portion 31 of the barrel 30. The spacer 40 and the barrel 30 are formed of materials having different thermal expansion coefficients. An O-ring 60 is interposed between a lock portion 32 of the lens holding portion 31 and the first infrared lens 10. Thermal expansion of the spacer 40 allows the first infrared lens 10 to move in the axial direction against the elastic force of the O-ring 60. When the spacer 40 is shrunken, the elastic force of the O-ring 60 allows the first infrared lens 10 to move in the opposite direction.

Abstract: An infrared lens 1a includes first to third lenses L1 to L3 which are made of zinc sulfide and arranged in this order from an object side. Each of the first to third lenses L1 to L3 is configured as a positive meniscus lens of which convex surface is opposed to the object. The lenses L1 to L3 are formed by heat-press molding raw powder of zinc sulfide using a lens-shaped mold. In addition, a concave surface (the surface opposed to the image side) of the first lens L1 is formed as a diffractive surface.

Abstract: An infrared lens 1a includes first to third lenses L1 to L3 which are made of zinc sulfide and arranged in this order from an object side. Each of the first to third lenses L1 to L3 is configured as a positive meniscus lens of which convex surface is opposed to the object. The lenses L1 to L3 are formed by heat-press molding raw powder of zinc sulfide using a lens-shaped mold. In addition, a concave surface (the surface opposed to the image side) of the first lens L1 is formed as a diffractive surface.

Abstract: An infrared lens 1a includes first to third lenses L1 to L3 which are made of zinc sulfide and arranged in this order from an object side. Each of the first to third lenses L1 to L3 is configured as a positive meniscus lens of which convex surface is opposed to the object. The lenses L1 to L3 are formed by heat-press molding raw powder of zinc sulfide using a lens-shaped mold. In addition, a concave surface (the surface opposed to the image side) of the first lens L1 is formed as a diffractive surface.

Abstract: A novel liquid crystal comprising a first liquid compound having bent structures and a second liquid crystal compound. A liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity while a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity. A smectic liquid crystal phase formed by the first liquid crystal compound has a tilted structure while a smectic liquid crystal phase formed by the second liquid crystal compound has no tilted structure. The first liquid crystal compound is represented by the following chemical formula (m=16) and the second liquid crystal compound is represented by the following chemical formula (m=4).

Abstract: A small-sized and low-cost infrared zoom lens while maintaining the brightness of an image and relevant arts to the infrared zoom lens is provided. The infrared zoom lens 1a is made up of first to third lens groups G1 to G3 formed of zinc sulfide. The first lens group G1 is made up of one or two lenses and has a positive refractive power. The second lens group G2 is made up of one or two lenses and has a negative refractive power. The third lens group G3 is made up of two or more lenses and has a positive refractive power as the whole lens group and also includes a positive meniscus lens with a convex face pointed at the object side as a final lens on the image surface side. At the zooming time, the second lens group G2 is moved along the optical axis. At least one of the lens surfaces of the first to third lens groups G1 to G3 is a diffraction surface. At least one of the lens surfaces of the first and third lens groups G1 and G3 is an aspheric surface.

Abstract: Three lenses formed of ZnS are used in combination. A first lens is a meniscus lens having a middle portion which is convex on an object side. A second lens has a middle portion that is a meniscus, which is concave on an object side and has positive refractive power, and a peripheral portion, which is convex on the object side. The first and second lenses have positive refractive power in combination. A third lens is provided adjacent to the second lens with a distance therebetween 1 mm or less and has a middle portion, which is a convex meniscus on an object side, and a peripheral portion which is concave on the object side. A diffraction surface is formed in either surface of the lens.

Abstract: A far-infrared camera includes three lenses formed of ZnS. A first lens is a biconvex lens, a second lens is a negative meniscus or biconcave lens, and a third lens is a positive meniscus lens. A diffraction surface is formed in either surface of a lens. When a total focal distance f of the lens system is 10 mm to 30 mm and a focal distance f12 of the first and second lenses is 20 mm to 70 mm, 1?f12/f?3.

Abstract: An infrared lens 1a includes first to third lenses L1 to L3 which are made of zinc sulfide and arranged in this order from an object side. Each of the first to third lenses L1 to L3 is configured as a positive meniscus lens of which convex surface is opposed to the object. The lenses L1 to L3 are formed by heat-press molding raw powder of zinc sulfide using a lens-shaped mold. In addition, a concave surface (the surface opposed to the image side) of the first lens L1 is formed as a diffractive surface.

Abstract: A novel liquid crystal comprising a first liquid compound having bent structures and a second liquid crystal compound. A liquid crystal phase formed by the first liquid crystal compound exhibits ferroelectricity or antiferroelectricity while a liquid crystal phase formed by the second liquid crystal compound exhibits neither ferroelectricity nor antiferroelectricity. A smectic liquid crystal phase formed by the first liquid crystal compound has a tilted structure while a smectic liquid crystal phase formed by the second liquid crystal compound has no tilted structure.