Abstract: A floodlight section emits light with a predetermined blinking pattern. The emitted light is reflected by a reflecting object. An image capturing section captures the light reflected by the reflecting object. A surveillance apparatus compares the pattern of the reflected light captured by the image capturing section and the blinking pattern of the light emitted by the floodlight section to determine that there is no invader in a surveillance area between the surveillance apparatus and the reflecting object while the predetermined blinking pattern is detected, and that there is an invader in the surveillance area when the predetermined blinking pattern is not detected. The present invention can be applied to surveillance apparatuses.

Abstract: To provide an electromagnetic valve where constitution and assembling of a current conduction system to a solenoid portion is simplified to improve assembling easiness and an insulation performance of the current conduction system can easily be secured.

Abstract: To make it possible to easily produce a solenoid for a solenoid valve at low cost by reducing the number of parts and assembling steps. In a solenoid for a solenoid valve, a pole face is formed on an end wall portion of a magnetic case which covers a bobbin around which a coil is wound, thereby allowing the end wall portion to function as a stationary core, an end surface of a moving core inserted in center holes of the bobbin and the magnetic plate is set opposed to the pole face, and the moving core is adsorbed by the end wall portion by energizing the coil.

Abstract: An electromagnetic valve having a high coupling strength between a valve portion and a solenoid portion is secured at a low cost without large-sizing the solenoid portion. Recessed portions positioned on one end side of a valve body and having inner wall faces formed by inclining faces that incline from the one end side of the valve body to the other end side towards its depth are provided on a valve body side face positioned on one end side of the valve body to be opposed to each other. Cuttings for forming caulking pieces are positioned corresponding to the recessed portions on the side wall on an opening side of a magnetic case.

Abstract: In a solenoid valve having a valve section having a valve member which comes into contact and separates from a valve seat to switch passages, and a solenoid portion for driving the valve member, the solenoid portion includes a fixed core, a bobbin around which a coil is wound, a cylindrical magnetic cover constituting an outer profile of the solenoid portion, a magnetic plate and a moving core. An electrical insulation film is formed on an inner surface or both inner and outer surfaces of the magnetic cover.

Abstract: There is provided a solenoid for electromagnetic valve, which has a small size and large attraction force, and is excellent in economization. In the solenoid for electromagnetic valve, a stationary iron core 5, a movable iron core 6 and the center hole 4a of a bobbin 4 individually have an elliptic or substantially rectangular cross section. Further, a relation of d=(0.4 to 0.8) W is formed between a winding outer diameter W on a shorter axis or side of a coil 7 wound around the bobbin 4 and having an elliptic or rectangular cross section and a diameter “d” of virtual cylindrical iron core having the same cross sectional area as a coil inside cross sectional area S. Further, a ratio of a length “a” of a longer axis or side to a length “b” of the shorter axis or side is set to a range of 1.3≦a/b≦3.0 in the cross section of the stationary iron core 5 and the moving iron core 6.

Abstract: A magnetic body case in a solenoid for an electromagnetic valve has a cylindrical skirt portion which surrounds a side face of a bobbin and a cap portion which covers one end face of the bobbin in an axial direction thereof, these skirt portion and cap portion are respectively formed individually, and the magnetic body case is assembled by coupling the cap portion to one end of the skirt portion in the axial direction.

Abstract: A poppet valve body for opening and closing supply and discharge valve seats by a movable core is provided in a valve chamber having the supply and discharge valve seats. The supply valve seat is formed at a valve seat body movable to approach and move away from the discharge valve seat. The valve seat body has first and second pressure receiving faces having different pressure receiving areas and on which fluid pressure from an input port acts in opposite directions and a third pressure receiving face on which fluid pressure in the valve chamber acts. The valve seat body, poppet valve body and movable core move forward to approach the discharge valve seat when the supply valve seat is closed with the poppet valve body. The valve seat body moves rearward to move away from the poppet valve body when the poppet valve body opens the supply valve seat.

Abstract: A solenoid for an electromagnetic valve is provided with a bobbin on which a coil has been wound, a movable iron core fitted into an iron core hole of the bobbin and a fixed magnetic pole member attracting the movable iron core, the movable iron core has a main body portion with an even section fitted into the iron core hole, and a flange portion with an even section formed on a portion extending from the iron core hole of the main body distal end, and the ring has a first portion which is positioned on a distal end side and which has a large diameter hole in which the flange portion is fitted and a second portion which is positioned on a proximal end side and which has a small diameter hole in which the main body portion is fitted.

Abstract: An arithmetic circuit, which is retained by each pixel in a conventional image sensor, is shared by each column. Signal processing circuits of different configurations are provided on signal transmission paths in an upward direction and a downward direction of a vertical signal line for extracting an image signal from each pixel, whereby image output processing and arithmetic processing are performed completely separately by the different circuit blocks. Thus, image quality of an actual image is improved and optimum design for arithmetic processing is made possible. Specifically, an I-V converter circuit unit, a CDS circuit unit and the like are provided on the image output side. A current mirror circuit unit, an analog memory array unit, a comparator unit, a bias circuit unit, a data latch unit, an output data bus unit and the like are provided on the arithmetic processing side.

Abstract: To provide an electromagnetic valve where a high coupling strength between a valve portion and a solenoid portion can be secured simply at a low cost without large-sizing the solenoid portion.

Abstract: To provide an electromagnetic valve where an end cover can easily be fitted into a valve hole, and a valve body can be small-sized.

Abstract: To make it possible to easily produce a solenoid for a solenoid valve at low cost by reducing the number of parts and assembling steps. In a solenoid 3A for a solenoid valve, a pole face 4c is formed on an end wall portion 4b of a magnetic case 4 which covers a bobbin 7 around which a coil 6 is wound, thereby allowing the end wall portion 4b to function as a stationary core, an end surface of a moving core 5 inserted in center holes 7a and 8a of the bobbin 7 and the magnetic plate 8 is set opposed to the pole face 4c, and the moving core 5 is adsorbed by the end wall portion 4b by energizing the coil 6.

Abstract: A solenoid for an electromagnetic valve is provided with a bobbin on which a coil has been wound, a movable iron core fitted into an iron core hole of the bobbin and a fixed magnetic pole member attracting the movable iron core, the movable iron core has a main body portion with an even section fitted into the iron core hole, and a flange portion with an even section formed on a portion extending from the iron core hole of the main body distal end, and the ring has a first portion which is positioned on a distal end side and which has a large diameter hole in which the flange portion is fitted and a second portion which is positioned on a proximal end side and which has a small diameter hole in which the main body portion is fitted.

Abstract: A magnetic body case in a solenoid for an electromagnetic valve has a cylindrical skirt portion which surrounds a side face of a bobbin and a cap portion which covers one end face of the bobbin in an axial direction thereof, these skirt portion and cap portion are respectively formed individually, and the magnetic body case is assembled by coupling the cap portion to one end of the skirt portion in the axial direction.

Abstract: To provide an electromagnetic valve where constitution and assembling of a current conduction system to a solenoid portion is simplified to improve assembling easiness and an insulation performance of the current conduction system can easily be secured.

Abstract: A pixel comprises a light receiving portion for generating an electric signal corresponding to intensity of received light, an amplifying portion for amplifying an output signal of the light receiving portion, a plurality of storing portions for storing as a current signal an electric signal amplified by the amplifying portion, a load portion for converting current outputs of the plurality of storing portions into voltages, a bias portion for supplying an offset current to an input of the load portion, and a calculating portion for calculating an output of the load portion. Such pixels are arranged in a matrix shape. The storing portion and the photographing device are disposed on the same circuit. Thus, the process is speeded up. In addition, with a bias, the output becomes stable.

Abstract: An imaging system includes a photoreceptor section for generating an electric signal responsive to luminosity of an object, an amplifier section for amplifying a received optical signal, a plurality of memory sections for storing amplified electric signals as current signals, a load section for converting current outputs of said memory sections to voltages, an arithmetic section for operating an output signal from said load section, an output section for externally outputting a result of the operation, and a drive control section for controlling driving of the respective sections. A reference signal level stored in one of the memory section is compared with luminosity of an object that is stored in the other memory section while progressing integration thereof with time, and the luminosity of the object is AD-converted based on the period of time required for the luminosity signal to exceed the reference signal.

Abstract: There is provided a solenoid for electromagnetic valve, which has a small size and large attraction force, and is excellent in economization. In the solenoid for electromagnetic valve, a stationary iron core 5, a movable iron core 6 and the center hole 4a of a bobbin 4 individually have an elliptic or substantially rectangular cross section. Further, a relation of d=(0.4 to 0.8) W is formed between a winding outer diameter W on a shorter axis or side of a coil 7 wound around the bobbin 4 and having an elliptic or rectangular cross section and a diameter “d” of virtual cylindrical iron core having the same cross sectional area as a coil inside cross sectional area S. Further, a ratio of a length “a” of a longer axis or side to a length “b” of the shorter axis or side is set to a range of 1.3≦a/b≦3.0 in the cross section of the stationary iron core 5 and the moving iron core 6.

Abstract: A diaphragm-type solenoid valve has a valve body 3 fixed onto a base, a diaphragm 4 for opening and closing a valve seat 13 provided to an inner end of a second port 12, a plate 5 for forming a driving chamber 14 between the plate 5 and the diaphragm sandwiched between the plate 5 and the valve body 3, and a pilot valve 6 for supplying pilot fluid pressure to the driving chamber 14. In the diaphragm, a disc 20 is encapsulated in a portion facing the port 12, a sealing rib 21 corresponding to the valve seat is provided, and cushion projecting portions 22 and 23 for coming in contact with cushion receiving portions 32 and 33 of the plate 5 in valve opening are formed behind the portion where the disc is encapsulated.