摘要:
An electron emitter has an emitter section having a plate shape, a cathode electrode formed on a front surface of the emitter section, and an anode electrode formed on a back surface of the emitter section. A drive voltage from a pulse generation source is applied between the cathode electrode and the anode electrode through a resistor. The anode electrode is connected to GND (ground) through another resistor. A collector electrode is provided above the cathode electrode, and the collector electrode is coated with a fluorescent layer. A bias voltage is applied to the collector electrode through another resistor.
摘要:
An electron-emitting element is provided, including an electric field applying portion composed of a dielectric, a first electrode formed on one surface of the electric field applying portion, and a second electrode formed on the surface and forming a slit in cooperation with the first electrode, and which is formed on a substrate.
摘要:
An electron emitter includes an emitter section having a plate shape, a cathode electrode formed on a front surface of the emitter section, and an anode electrode formed on a back surface of the emitter section. A gap is formed between an outer peripheral portion of the cathode electrode and the front surface of the emitter section. The front surface of the emitter section contacts a lower surface of the outer peripheral portion to form a base end as a triple junction. The gap expands from the base end toward a tip end of the outer peripheral portion.
摘要:
A pump having a main pump body including a casing to which a fluid is supplied, and a pump section, an input valve section, and an output valve section which are provided opposingly to one surface in the casing. Each of the pump sections, the input valve section, and the output valve section has an actuator section. The input valve section, the pump section, and the output valve section are provided opposingly to the back surface of the casing for selectively forming a flow passage on the back surface of the casing in accordance with selective displacement action of the input valve section, the pump section, and the output valve section in a direction approaching or separating from the back surface of the casing. The fluid is controlled for its flow in accordance with the selective formation of the flow passage.
摘要:
An actuator having a fixed portion, a vibrating portion supported on the fixed portion so as to undergo vibrations, and an actuating portion including a first and a second electrodes formed on both sides or one side of a deformable layer is provided. The actuator generates a displacement motion by holding the offset electric potential of the first electrode at a desired valve and variable-controlling an electric potential of the second electrode. A cathode for emitting electrons is formed on the actuator. The current controlling element changes the position of the cathode with respect to the plate by the displacement motion of the actuator obtained by changing an electric potential difference of the second electrode to the offset electric potential, and adjusts the offset position of the cathode according to the offset electric potential, to adjust a control range of a current value taken out of the plate.
摘要:
Assuming that a display period for one image is one field, a light source turn on period and a light source turn off period are set for the one field. An overall bending displacement period for making bending displacement of all actuator elements is set within the light source turn off period. A gradational display period for performing substantial gradational display and a reset period for resetting the bending displacement of all of the actuator elements are set within the light source turn on period. Subfields of a number corresponding to the maximum gradation level are set within the gradational display period. Timing control is performed so that all row selection is completed within each of the subfields. Accordingly, the gradation level is advantageously extended when a relationship of Tr>>Tf is given between a light-emitting rising time Tr of the picture element and a quenching falling time Tf of the picture element.
摘要:
Defect of an acrylic plate is detected such that a light beam, which dominantly includes non-parallel rays not parallel to a principal surface of the acrylic plate, is introduced through a side surface formed substantially perpendicularly to the principal surface of the acrylic plate. In this arrangement, transmitted light, which is obtained through the principal surface of the acrylic plate on the basis of the defect, is detected by using any one of or both of a light-receiving device with its light-receiving surface arranged and directed substantially in parallel to the principal surface of the acrylic plate and a light-receiving device with its light-receiving surface arranged and directed substantially perpendicularly to the principal surface of the acrylic plate. Thus, the defect of the acrylic plate is quantitatively detected by measuring the amount of light of the transmitted light. Accordingly, an identical optical system can be used to perform the detection of, for example, the surface scratch of the acrylic plate as well as the bubble and the foreign matter in the acrylic plate simultaneously with the detection of the defect such as the bend and the waviness of the acrylic plate itself.
摘要:
Disclosed is a display device for displaying a picture on an optical waveguide plate in accordance with an image signal by controlling displacement movement of each of actuator elements in a direction to make contact or separation with respect to the optical waveguide plate so that scattered light is controlled at a predetermined position on the optical waveguide plate, wherein the actuator element comprises a main actuator element including a piezoelectric/electrostrictive layer, and a pair of electrodes formed on a first principal surface of the piezoelectric/electrostrictive layer, a vibrating section contacting with a second principal surface of the piezoelectric/electrostrictive layer, for supporting the main actuator element, and a fixed section for supporting the vibrating section in a vibrative manner, and wherein the actuator element further comprises a displacement-transmitting section for transmitting, to the optical waveguide plate, displacement movement of the main actuator element caused by applying a voltage between the pair of electrodes. According to the display device, the electrostatic capacity of the actuator element can be reduced, further, display brightness without any nonuniformity can be obtained, and it is possible to improve the image quality.
摘要:
A microdevice has an electron emitter including a memory for accumulating electric charges corresponding to an input voltage, for emitting electrons corresponding to the electric charges accumulated in said memory; and an amplifier connected to a power supply and including a collector electrode for capturing the electrons emitted from the electron emitter. The atmosphere between at least the electron emitter and the collector electrode is a vacuum. When the electrons emitted from the electron emitter are captured by the collector electrode of the amplifier, a collector current flows between the collector electrode and the electron emitter to amplify the input voltage.
摘要:
An electron emitter has an emitter made of a dielectric material and an upper electrode and a lower electrode for being supplied with a drive voltage for emitting electrons. The upper electrode is disposed on an upper surface of the emitter, and the lower electrode is disposed on a lower surface of the emitter. The upper electrode has a plurality of through regions through which the emitter is exposed. Each of the through regions of the upper electrode has a peripheral portion having a surface facing the emitter and spaced from the emitter.