Abstract:
A well-logging tool may include a sonde housing and a radiation generator carried by the sonde housing. The radiation generator may include a generator housing, a target carried by the generator housing, a charged particle source carried by the generator housing to direct charged particles at the target, and at least one voltage source coupled to the charged particle source. The at least one voltage source may include a voltage ladder comprising a plurality of voltage multiplication stages coupled in a uni-polar configuration, and at least one loading coil coupled at at least one intermediate position along the voltage ladder. The well-logging tool may further include at least one radiation detector carried by the sonde housing.
Abstract:
Provided are a photovoltaic device and a lamp and a display device using the same. The photovoltaic device includes a substrate; a conductive electric field enhanced layer including a plurality of partial electric field crowding end portions disposed on the substrate; an electron amplification layer disposed on the electric field enhanced layer and formed of a material that emits secondary electrons; and a photoelectric material layer disposed on the electron amplification layer. The photovoltaic device can be applied to various fields and used as a light emitting display device (OLED) to generate light with high luminance at a low voltage.
Abstract:
A display device has a display screen for displaying image information, and cathode means comprising an emitter material for emitting electrons. The emitted electrons are collected by an electron concentrator which redistributes the electrons in a homogenous electron beam (EB). The emitter material is arranged on a first surface excluding a first impact area on which positive ions land that pass through the electron concentrator. Therefore, substantially no emitter material is provided at the first impact area, so that damage inflicted on the cathode means by the positive ions is reduced. Preferably, the display device has a pumping chamber between the cathode means and a back plate, for removing residual gases from the display device.
Abstract:
The present invention pertains to an electron gun. The electron gun comprises an RF cavity having a first side with an emitting surface and a second side with a transmitting and emitting section. The gun is also comprised of a mechanism for producing an oscillating force which encompasses the emitting surface and the section so electrons are directed between the emitting surface and the section to contact the emitting surface and generate additional electrons and to contact the section to generate additional electrons or escape the cavity through the section. The section preferably isolates the cavity from external forces outside and adjacent the cavity. The section preferably includes a transmitting and emitting screen. The screen can be of an annular shape, or of a circular shape, or of a rhombohedron shape. The mechanism preferably includes a mechanism for producing an oscillating electric field that provides the force and which has a radial component that prevents the electrons from straying out of the region between the screen and the emitting surface. Additionally, the gun includes a mechanism for producing a magnetic field to force the electrons between the screen and the emitting surface. The present invention pertains to a method for producing electrons. The method comprises the steps of moving at least a first electron in a first direction. Next there is the step of striking a first area with the first electron. Then there is the step of producing additional electrons at the first area due to the first electron. Next there is the step of moving electrons from the first area to a second area and transmitting electrons through the second area and creating more electrons due to electrons from the first area striking the second area. These newly created electrons from the second area then strike the first area, creating even more electrons in a recursive, repeating manner between the first and second areas.
Abstract:
The present invention pertains to an electron gun that generates multiple electron bunches to produce r.f. energy. The electron gun (10) comprises an r.f. input cavity having a first multiple emitting surface (14, 16) and a second multiple transmitting and emitting sections (18, 20). The electron gun also includes a rotating and oscillating force generating mechanism (26) encompassing the multiple emitting surface (16) and sections (20). The multiple sections (20) further include multiple grids (24) of annular, circular, or rhombehedron shape. Moreover, a method of producing multiple electron bunches is provided using the present invention.
Abstract:
Electric discharge element (1) comprising a cathode (2) which cooperates with an electron duct cavity (10) which is defined by walls (7, 8, 9) of electrically insulating material having a secondary emission coefficient δ, which cavity (10) has an output aperture (11), while electrode means (12) which can be connected to a voltage source (ΔV) are provided for applying, in operation, an electric field across a path in the cavity (10) from the cathode (2) to the output aperture (11) so as to enable electron transport through the cavity (10).
Abstract in simplified Chinese:本发明系有关于一种场发射显示器,其包括有一含有一萤光粉层与一阳极之上基板、一下基板、至少一具有开孔图样之阴极、一位于阴极上表面之绝缘层、至少一位于绝缘层上方之闸极、以及至少一位于阴极开孔内之电子发射体。其中,电子发射体是邻接于阴极且彼此电性连接,且具有开孔图样之阴极是位于下基板之上表面。借此,本发明场发射显示器不仅可提供均匀化之电子发射,且相对地增加画面亮度的均匀性及色彩的对比度。再者,本发明场发射显示器亦可简化制程且能控制较佳的产品良率,即可降低场发射显示器之制造成本。
Abstract in simplified Chinese:本发明系有关于一种场发射显示器,其包括有一含有一萤光粉层与一阳极之上基板、一下基板、至少一具有开孔图样之阴极、一位于阴极上表面之绝缘层、至少一位于绝缘层上方之闸极、以及至少一位于阴极开孔内之电子发射体。其中,电子发射体是邻接于阴极且彼此电性连接,且具有开孔图样之阴极是位于下基板之上表面。借此,本发明场发射显示器不仅可提供均匀化之电子发射,且相对地增加画面亮度的均匀性及色彩的对比度。再者,本发明场发射显示器亦可简化制程且能控制较佳的产品良率,即可降低场发射显示器之制造成本。
Abstract in simplified Chinese:本发明提供一种显示设备,具有一用以显示图像信息之显示幕及用以发射电子之含有一射极材料之阴极构件。被发射之电子由一将电子再分配成均匀电子束之电子集中器加以控制。该射极材料被置于不包括正离子降落其上而通过该电子集中器之第一撞击区之第一表面上。因此,在第一撞击区实质上并无射极材料而可降低正离子打击于阴极构件上所造成之损害。该显示设备最好在该阴极构件与一后皮肤间有一抽气室用以从该显示设备移除残留之气体。