Abstract:
Es wird ein Bildelement (1) zur Erfassung einer Helligkeitsinformation und einer Farbinformation angegeben. Das Bildelement (1) weist auf eine lichtempfindliche Detektorfläche (2), die mit Teilflächen (3, 4, 5) auf wenigstens drei getrennt auslesbaren Einzeldetektoren (8, 9, 10) aufgeteilt ist, ein die Detektorfläche (2) abdeckendes Farbfilterelement (14), das den Teilflächen (3, 4, 5) jeweils zugeordnete, sich in den Filtereigenschaften unterscheidende Farbfilter (17, 18, 19) umfasst, und eine gemeinsame, mit den Einzeldetektoren (8, 9, 10) verschaltete Ausleseelektronik (6) zu einem jeweiligen Auslesen der Einzeldetektoren (8, 9, 10), wobei die Teilflächen (3, 4, 5) ineinander geschaltet sind. Weiter wird ein Bildsensor (22) mit einer Vielzahl derartiger Bildelemente (1) angegeben.
Abstract:
A photocathode utilizes an field emitter array (FEA) integrally formed on a silicon substrate to enhance photoelectron emissions, and a thin boron layer disposed directly on the output surface of the FEA to prevent oxidation. The field emitters are formed by protrusions having various shapes (e.g., pyramids or rounded whiskers) disposed in a two-dimensional periodic pattern, and may be configured to operate in a reverse bias mode. An optional gate layer is provided to control emission currents. An optional second boron layer is formed on the illuminated (top) surface, and an optional anti-reflective material layer is formed on the second boron layer. An optional external potential is generated between the opposing illuminated and output surfaces. An optional combination of n-type silicon field emitter and p-i-n photodiode film is formed by a special doping scheme and by applying an external potential. The photocathode forms part of sensor and inspection systems.
Abstract:
本発明は、微細化が進展し読み出し電極に比べ、読み出し電極に隣接する転送電極が小さい場合でも読み出し電圧を低減することが可能な固体撮像装置の駆動方法を提供することを目的とするものである。本発明は、フォトダイオード(210)と、複数の転送電極を有する垂直CCD(220)とを備える固体撮像装置の駆動方法であって、読み出し電極のうちの所定の転送電極を電位V H とすることによりフォトダイオード(210)から信号電荷を読み出し、電位V M と電位V L を持つ駆動パルスを転送電極に印加することにより信号電荷を列方向に転送し、読み出し電極は、これに隣接する転送電極よりも大きな面積を有し、信号電荷の読み出しでは、電位V H が印加されている間は、所定の読み出し電極に隣接する一方の転送電極を電位V M とし、かつ所定の読み出し電極に隣接する他方の転送電極、及び所定の電極以外の読み出し電極の電位を変化させる。
Abstract:
A charge-coupled device image sensor includes (a) a two- dimensional array of pixels having a plurality of rows and columns, the two- dimensional array includes: (i) a plurality of gates arranged as a charge-coupled device; wherein the array further includes a plurality of charge-coupled devices that are arranged to be clocked by one or more common timing signals; (ii) a transition region, electrically connected to the array, having a first and second row of gates in which the second row is electrically mated into a plurality of first and second pairs of gates in which first pairs of gates are clocked by a first common timing signal and second pairs of gates are clocked by a second common timing signal; wherein the first row of gates are all clocked with a third common timing signal; and (b) a horizontal shift register adjacent the second row of gates for receiving charge from the second row of gates.
Abstract:
A charge-coupled device includes a photosensitive region for collecting charge in response to incident light; a first and third gate electrode made of a transmissive material spanning at least a portion of the photosensitive region; and a second gate electrode made of a transmissive material that is less transmissive than the first and third gates and spans at least a portion of the photosensitive region; wherein the first, second and third gates are arranged symmetrically within an area that spans the photosensitive region.
Abstract:
Ein EMCCD-Detektor, insbesondere zur Detektion von Licht in einem Mikroskop, mit einem photoaktiven Bereich (16) und einem Verstärkerregister (17) ist im Hinblick auf einen Einsatz mit hoher Ausleserate derart ausgestaltet und weitergebildet, dass der photoaktive Bereich (16) in mindestens zwei Detektionsbereiche (18) unterteilt ist und dass einer vorgebbaren Anzahl oder Gruppe oder Anzahl von Gruppen von Detektionsbereichen (18) jeweils mindestens ein separates Verstärkerregister (17) zugeordnet ist. Des Weiteren sind ein Spektrometer sowie ein Mikroskop mit einem derartigen EMCCD-Detektor beansprucht.
Abstract:
A system for x-ray fluoroscopic imaging of bodily tissue in which a scintillation screen and a charge coupled device (CCD) is used to accurately image selected tissue. An x-ray source generates x-rays which pass through a region of a subject's body, forming an x-ray image which reaches the scintillation screen. The scintillation screen re-radiates a spatial intensity pattern corresponding to the image, the pattern being detected by the CCD sensor. In a preferred embodiment the imager uses four 8 x 8-cm three-side buttable CCDs coupled to a CsI:Tl scintillator by straight (non-tapering) fiberoptics and tiled to achieve a field of view (FOV) of 16 x 16-cm at the image plane. Larger FOVs can be achieved by tiling more CCDs in a similar manner. The imaging system can be operated in a plurality of pixel pitch modes such as 78,156 or 234- mu m pixel pitch modes. The CCD sensor may also provide multi-resolution imaging. The image is digitized by the sensor and processed by a controller before being stored as an electronic image. Other preferred embodiments may include each image being directed on flat panel imagers made from but not limited to, amorphous silicon and/or amorphous selenium to generate individual electronic representations of the separate images used for diagnostic or therapeutic applications.