Abstract: A substrate coating device (10) includes a precision stage (7), a nozzle (8), and conveyors (3 to 6 and 21). The precision stage (7) has a horizontal placement surface for placing a substrate W thereon and is configured to be reciprocable between an upstream end and a downstream end in a conveying direction. The conveyors (3 to 6 and 21) are configured to convey the substrate W in the conveying direction via the placement surface of the precision stage (7) in such manner that a surface of the substrate W is positioned in a horizontal plane. The intermediate conveyor (21) is liftable between a conveying position where a conveying surface of the intermediate conveyor is coincident with the placement surface of the stage and a non-conveying position where the conveying surface is positioned below the placement surface of the stage.

Abstract: A lens barrel comprising: a first retention member that includes a first engaging portion, which engages with a guide shaft, and that retains a first optical system and a second optical system, which is different from the first optical system, to be integrally movable along the guide shaft; and a second retention member that includes a second engaging portion, which engages with the guide shaft, and that retains a third optical system, which is disposed between the first optical system and the second optical system, to be movable independently of the first and second optical systems.

Abstract: A substrate coating device is provided which is capable of reducing non-uniform film thickness areas that take place in a coating start portion and a coating end portion during coating using a slit nozzle coater. The substrate coating device (10) includes at least a slider driving motor (4), a pump (8), a delivery state quantity measuring section (82), and a control section (5). The slider driving motor (4) scans a slit nozzle (1) over a substrate (100) at an established velocity relative to the substrate (100). The pump (8) controls the supply of the coating liquid to the slit nozzle (1). The delivery state quantity measuring section (82) is configured to measure a state quantity indicative of a delivery state of the coating liquid from the tip of the slit nozzle (1).

Abstract: It is an objective of the present invention to provide an actuator that can efficiently enlarge a displacement amount of a moving element. Provided is an actuator that moves a moving element, comprising a drive element that contacts the moving element; a drive unit that moves the moving element in a movement direction by moving a contact portion of the drive element contacting the moving element in the movement direction and in an opposite direction that is opposite the movement direction, such that movement speed in the opposite direction is greater than movement speed in the movement direction; and a displacement enlarging section that joins the drive unit and the drive element to each other, and transmits enlarged displacement of the drive unit to the drive element.

Abstract: The substrate coating device (10) includes a slit nozzle (1), a first camera (3), a second camera (4), a control section (5), a pump (8), and a pressure control chamber (9). The control section (5) controls the supply of the coating liquid from the pump (8) to the slit nozzle (1) in accordance with the result of comparison between a bead shape imaged by the first camera (3) and a reference shape. The control section (5) also controls the air pressure on the upstream side of the slit nozzle (1) by the pressure control chamber (9) in accordance with the result of comparison between a distance measured from an image taken by the second camera (4) and a reference distance.

Abstract: Provided is a vibration actuator comprising an elastic body; an electromechanical transducer that causes the elastic body to vibrate; and a rotating body that rotates in response to a drive force received from contact with the elastic body at a vibrational antinode thereof, wherein the rotating body contacts the elastic body at a prescribed position along a direction in which an axis of the rotation extends. In the vibration actuator, the elastic body includes an elastic body contact member that is arranged in a region that includes the vibrational antinode of the elastic body, the rotating body includes a rotating body contact member that receives a drive force by contacting the elastic body contact member, and one of the elastic body contact member and the rotating body contact member has a contact surface that is oriented diagonally to the axis of rotation and contacts the other of the elastic body contact member and the rotating body contact member.

Abstract: A lens barrel comprising: a first retention member that includes a first engaging portion, which engages with a guide shaft, and that retains a first optical system and a second optical system, which is different from the first optical system, to be integrally movable along the guide shaft; and a second retention member that includes a second engaging portion, which engages with the guide shaft, and that retains a third optical system, which is disposed between the first optical system and the second optical system, to be movable independently of the first and second optical systems.

Abstract: There is provided a compressor having two compression portions arranged in parallel. A compression chamber is formed into an air-tight chamber surrounded by a head of a piston, a cylinder, and a head cover. A discharge chamber is provided to the periphery of each cylinder, and these discharge chambers communicate with each other by a through hole. Two field cores of each electromagnet for driving each piston are formed in the integral structure, and a half wave of an alternating electric current is supplied to each coil wound around these coils in such a manner that the excitation directions of the respective field cores are opposed from each other.

Abstract: A blower supplies compressed air to a predetermined place. The blower is provided with a plurality of compressors, a common air tank for storing compressed air supplied from the compressors, a changeover valve for switching the compressed air taken in from the air tank between a first supply state and a second supply state, and a controller for controlling operations of the compressors and the switching operation of the changeover valve. The controller can select one operation pattern from among a plurality of operation patterns determined by combinations between the compressors and the changeover valve.

Abstract: An electromagnetic relay, having a core 3 fixed by press-fitting in a yoke 4, which is facilitated in attaching operation and eliminated of the possibility, during press-fitting, of being placed in poor contact by metal chips produced by cutting away the yoke 4 by the core 3. The core 3 is provided with a smaller diameter portion 3c at an end portion and is inserted into a center of a bobbin 1 having a coil 2 wound therearound. A cutout 5 is formed in the yoke 4 so as to receive by press-fitting the smaller diameter portion 3c of the core 3. First slant surfaces 6 are formed in the edge of an opening of the cutout 5 such that the wall thickness becomes thinner toward the opening. Second slant surfaces 7 are provided in the form of curved surfaces at the terminal ends of the first slant surfaces in a manner smoothly continuing to a general surface of the yoke 4 and also to the first slant surfaces 6.

Abstract: An electromagnetic reciprocating pump comprising of a closed-type casing provided with a cylinder in front thereof, a main shaft as least the front end of which is fixed to the casing, a piston having a piston head in front thereof, which piston is slidably fitted over the outer periphery of the main shaft to reciprocate, and coaxially supporting an armature, a spring disposed between the piston and the casing for biasing the piston in one direction, an electromagnet fixed to the casing so as to attract the armature in the opposite direction against the biasing force of the spring, suction ports and suction valves for sucking a fluid into a pressure chamber defined by the cylinder and the piston head, and a discharge port and a discharge valve for discharging the pressurized fluid from the pressure chamber.

Abstract: A solenoid-operated reciprocating pump includes a casing having a cylinder with a central axis. A main shaft is disposed in and secured at one end to the casing in alignment with the central axis of the cylinder. A piston having a piston head is slidably fitted over the main shaft such that the piston head is disposed within the cylinder for axial motion. A coil spring extends between the piston and casing to bias the piston in a first axial direction and an armature radially extends from the outer periphery of the piston for interaction with an electromagnet disposed around the longitudinal periphery of the piston. The electromagnet attracts the armature and hence the piston in a second axial direction opposite from the first direction.

Abstract: A magnet holder for an electromagnetic diaphragm pump comprising a reinforcing member having at least in part thereof a width smaller than the distance between a pair of magnets placed in the predetermined positions in magnet insertion windows is provided integrally with the magnet holder between the pair of magnet insertion windows for juxtaposing and holding a pair of flat plate-shaped magnets in the same plane, so that the mechanical strength of the magnet holder is prevented from decreasing. And positioning members may be formed in the reinforcing member for pressing the pair of magnets inserted into the magnet insertion windows toward the diaphragms attached to opposite ends of the magnet holder, thereby positioning the magnets with enough accuracy and determining the distance between the magnets.

Abstract: An interface apparatus connects one of a plurality of communication terminal equipment units to a single telephone line on the basis of a selection signal supplied via the telephone line. The telephone line is disconnected when there is no answer from the selected communication terminal equipment unit within a predetermined time period.

Abstract: An electromagnetic pump comprising fluid operation chambers for discharging fluid to the outside; and electromagnet connected to an AC power source device for polarity switching for every half cycle of AC when energized; a permanent magent which moves together with the electromagnets; and a reciprocative shaft holding the permanent magnet, which reciprocates in the shaft direction when the electromagnet is energized. The width of a securement portion for the permanent magnet of the reciprocative shaft is relatively narrow compared to the other portions, and the permanent magnet consists of a pair of permanent magnet pieces bonded together by sandwiching the securement portion therebetween. The electromagnetic pump further comprises a fluid operation member for expanding or contracting the volume in the fluid operation chamber by the reciprocation movement of the reciprocative shaft so as to guide fluid out.