摘要:
A cathode structure comprises a cylindrical metal sleeve having aperture portions at both ends, a base metal having an aperture portion on one end, which is fitted onto one of the aperture portions of the metal sleeve, and an electron-emitting layer, which is formed on a flat portion of an outside surface of the base metal. After an electron-emitting material is sprayed onto the base metal, its surface is mechanically flattened to form the electron-emitting layer. Thus, the planarity of the surface of the electron-emitting layer can be improved without deterioration of the electron emission characteristics and the moiré can be decreased without reduction of the resolution.
摘要:
A cathode structure comprises a cylindrical metal sleeve having aperture portions at both ends, a base metal having an aperture portion on one end, which is fitted onto one of the aperture portions of the metal sleeve, and an electron-emitting layer, which is formed on a flat portion of an outside surface of the base metal. After an electron-emitting material is sprayed onto the base metal, its surface is mechanically flattened to form the electron-emitting layer. Thus, the planarity of the surface of the electron-emitting layer can be improved without deterioration of the electron emission characteristics and the moiré can be decreased without reduction of the resolution.
摘要:
A bank note handling system includes a cabinet, a removable bank note cassette in the cabinet for storing a supply of bank notes, the supply of bank notes including notes having a desired denomination and being subject to the inclusion of notes having undesired denominations, the bank note cassette including a memory for storing denomination data corresponding to the desired denomination of the supply of bank notes. In the cabinet, a controller for reading the denomination data from the memory, a feeding mechanism for removing the bank notes from the bank note cassette, and a discrimination unit for discriminating the denomination of each bank note removed from the bank note cassette are arranged. The controller acts to compare the denomination discriminated by the discrimination unit with the denomination data read from the memory for detecting the presence of notes having an undesired denomination.
摘要:
The CRT device comprises a cold cathode electron gun that includes cathodes, a peripheral focusing electrode, and an accelerating electrode. The cathode has a structure in which an emitter electrode and a gate electrode are joined together with an insulating layer interposed therebetween. The electric potential difference from the emitter electrode is 60V for the gate electrode, 0V for the peripheral focusing electrode, and 4.6 kV for the accelerating electrode.
摘要:
A cathode includes emitter tips provided on a substrate, a gate electrode with an electric field formed between the gate electrode and the emitter tips, and terminals and leads for supplying voltages to the emitter tips and the gate electrode, respectively. A shield electrode further is provided between the cathode and a control electrode, and the shield electrode has a cylindrical projecting portion projecting toward the cathode, through which electron beams pass. The disturbance of an electric field by the leads influences the electron beams; however, this can be prevented by the projecting portion. Because of this, even if the size of the cathode is reduced, the distortion of an electron beam spot on a phosphor screen can be reduced. As a result, a cathode-ray tube with high resolution can be provided at a low cost.
摘要:
Disclosed is a printing apparatus for printing a page of a book. The printing apparatus comprises printing means, page turning means, and a shutter movable between the printing means and the page turning means for guiding the book. The shutter is located inside the printing means to guide the book when the book is transferred to the printing means, and is taken out from the printing means and transferred to the page turning side to allow printing when the page of the book is to be printed by the printing means. The shutter is located inside the page turning means to guide the book when the book is transferred to the page turning means, and is taken out from the page turning means to allow page turning when the page of the book is to be turned by the page turning means. In such construction, the single shutter can guide the book for both printing and page turning.
摘要:
A cathode ray tube according to the present invention include a cold cathode electron gun, the cold cathode electron gun including a cold cathode array for emitting electrons through field emission, a gate electrode for controlling the field emission, a first selective electrode provided around the cold cathode array and the gate electrode, and a second selective electrode opposing the first selective electrode, and the second selective electrode is adapted to have a lower potential than the gate electrode and the first selective electrode. In accordance with this configuration, the divergence of electron beams emitted from any positions in the cold cathode array can be converged uniformly upon removing electron beams emitted at a great emission angle. This allows the electron beams thereafter to be made narrower by an electrostatic lens. As a result, the present invention can provide a cathode ray tube capable of forming a high-resolution image.
摘要:
The present invention concerns a cathode ray display tube in which the layers of a scattered electrons suppressing material are formed on the surface of a metal back layer on a phosphor layer and the inner surface of a funnel part. Each of the scattered electrons suppressing material layers on the surface of the metal back layer and on the inner surface of the funnel part is formed with an amount per unit area within specific ranges. The scattered electrons suppressing material layer is provided to form a laminated layer which is composed of lamina shaped graphite particles with a diameter which is ten times or more as large as a thickness and an average particle size in terms of spherical volume not more than 2 .mu.m. The scattered electrons suppressing material layers reduce unnecessary light emission due to scattered electrons and improve the contrast of a display image. A projection display system providing a display image with high contrast can be constituted by using the cathode display tubes.
摘要:
A paper document transacting apparatus for storing and extracting a paper document into and out of storages through a transporting unit. The apparatus comprises a detector for detecting a transporting condition of the paper document, an indicator for indicating an abnormal transport position of the document, a control switch for controlling a transporting unit, and a controller for controlling the indicator such that, when the abnormal transport position is detected, at least a leading abnormal transport position in a transporting direction out of abnormal transport positions is indicated as well as driving the transporting unit at a low speed according to a signal from the control switch.According to another embodiment, a paper document transacting apparatus comprises a transporting unit capable of being pulled out of the paper document transacting apparatus, a driving device for driving the transporting unit at a low speed or at a normal speed, first and second switches provided in the transporting unit to change their ON and OFF states according to whether the transporting unit is pulled in or out of the paper document transacting apparatus, and a third switch for instructing the driving device of a low-speed operation.
摘要:
A wavelength conversion laser light source includes: a non-linear optical crystal of an oxygen octahedral structure, having added thereto a metal ion in other components than a main component; a light source for projecting light into the non-linear optical crystal in an operation mode; and a refractive index recovery mechanism for carrying out a recovery operation for recovering a refractive index of said non-linear optical crystal as shifted overtime due to light projected into the non-linear optical crystal in the operation mode with an applied external energy into the non-linear optical crystal in a non-operation mode in which light is not injected to the non-linear optical crystal.