352 results about "Shielding block" patented technology

An optical filter array (2) having a plurality of optical filters (2a to 2d) and a light shielding block (6) having light shielding walls (61a to 61d) forming a plurality of openings (6a to 6d) independent from each other are placed between a lens module (7) integrally having a plurality of lenses (1a to 1d) arranged on a single plane and a plurality of imaging regions (4a to 4d). The light shielding block is provided with first sliding surfaces (66 to 69). The lens module is provided with second sliding surfaces (56 to 59) sliding on the first sliding surfaces so that the lens module can rotate with respect to the light shielding block with an axis normal to the plurality of imaging regions as a rotation center axis. Thus, a small, thin, and low-cost compound eye camera module can be realized.

The invention discloses a multi-target tracking method by taking the depth as a leading clue under a dynamic scene, and relates to a multi-target tracking method. The multi-target tracking method comprises the following steps of: A, acquiring the current frame from a binocular camera, and correcting a binocular image; B, classifying colors of the image, and thus obtaining color blocks; C, performing three-dimensional reconstruction on the scene, and thus obtaining a dense depth picture; D, clustering depth information in an expanded area of a target region of the former frame to obtain a depth classification; E, classifying super pixels in the region and partitioning a foreground from a background according to the depth classification obtained in the step D; F, partitioning the foreground extracted in the step E according to an appearance model of the former frame, and extracting a final foreground; G, if a tracker is in a shielded state, stepping into the step I, and if the tracker is not shielded, returning to the step A, otherwise, recording a target appearance model of the former frame by the tracker, and stepping into the step H; H, extracting a depth block which shields an original target, and setting the tracker to be in the shielded state; and I, searching the original target around the current shielded block, if the original target is found, resetting the tracker to be in a normal state, and returning to the step A.

A balun is included in a magnetic resonance imaging system. The balun conditions electromagnetic signals received from at least one RF receiver coil. The balun includes a balun shield having an integrated capacitor therein. The balun shield blocks unwanted feedback from effecting performance of any components contained within the balun shield.

A compound-eye imaging device comprises: an optical lens array with integrated optical lenses; a stop member for shielding unnecessary ambient light from entering the optical lenses; a photodetector array formed of a semiconductor substrate and placed at a predetermined distance from the optical lens array for imaging images formed by the optical lenses; a light shielding block placed between the two arrays; and an optical filter for transmitting light from the optical lenses in a specific wavelength range. The optical filter is a part of, and integral with, the photodetector array. The optical filter can be a deposited film formed by depositing silicon oxide and titanium oxide on a glass plate provided for protecting a surface of, and integrally formed on, the semiconductor substrate. This enables to easily omit an optical filter separately provided between the two arrays, thereby reducing the thickness of the imaging device.

A compound-eye imaging device comprises: an optical lens array with integrated multiple optical lenses; a photodetector array for imaging images formed by the optical lenses; and a light shielding block placed between the two arrays for partitioning a space between the two arrays into a matrix of spaces as seen on a plane perpendicular to the optical axis of each optical lens so as to prevent lights emitted from the optical lenses from interfering each other. The light shielding block is formed of flat unit plates of two kinds having different thicknesses and stacked between the optical lens array and the photodetector array. Since the light shielding block is formed of stacked flat unit plates, it is easy to manufacture a light shielding block having apertures with dense structure having a small distance between adjacent apertures, and also easy to adapt to variations in focal length of the optical lenses.

A compound material at least comprises a pair of overlapped high heat conductive layer and electromagnetic interference (EMI) shielding layer. The EMI shielding layer includes a high heat conductive sub-layer and a plurality of EMI shielding blocks thereby forming an EMI shielding net and a heat conducting track with the cooperation of the overlapped heat conductive layer in the meantime. The compound material further comprises a second EMI shielding layer overlapped on the side of the heat conductive layer which is opposite to said EMI shielding layer and having a plurality of EMI shielding blocks, which are arranged in a similar as and are staggered from the EMI shielding blocks of said EMI shielding layer in the overlapped or vertical direction thereof.

The invention discloses a uniform single X-ray source blood irradiator. The uniform single X-ray source blood irradiator comprises an instrument shell and a cabinet which are arranged vertically; a display screen and an openable door are arranged on one side wall of the instrument shell separately; an industrial personal computer is arranged on the portion, close to the display screen, inside the instrument shell, the industrial personal computer is connected with the display screen, a high-voltage generator is arranged on one side of the industrial personal computer, a radiation cavity shield is arranged on the front portion of the high-voltage generator, an X-ray tube is connected to the side wall of the radiation cavity shield and connected with the high-voltage generator, and the X-ray tube is sleeved with a ball tube shielding case; the radiation cavity shield is internally provided with a blood cup autorotation mechanism and a shielding block which are connected together, and the blood cup autorotation mechanism is provided with a blood cup; the industrial personal computer, the high-voltage generator, the X-ray tube and the radiation cavity shield are connected with the cabinet; the industrial personal computer, the high-voltage generator and the radiation cavity shield are all fixed to the top of the cabinet. According to the uniform single X-ray source blood irradiator, the problem that an existing single X-ray tube is nonuniform is solved.

A transport/storage cask for a radioactive material has an inner shell, an outer shell and a circular gamma ray shielding layer and a circular neutron shielding layer both of which are placed between the inner shell and the outer shell. The gamma ray shielding layer is formed by aligning a plurality of gamma ray shielding blocks composed of lead in a block shape in the circumferential direction. The entire gamma ray shielding block in the axial direction is covered with a copper tube having a higher elasticity limit than the gamma ray shielding block. In the above transport/storage cask, the gamma ray shielding layer composed of lead or a lead alloy is not easily deformed.

The present invention provides for a firearm having a receiver defining a bore with the receiver extending along a longitudinal axis. The receiver defines an ejection port transverse to the longitudinal axis with the bore defining an inner surface. The firearm further includes a bolt carrier disposed in the bore and moveable relative to the receiver along the longitudinal axis between a firing position and a rearward position. The firearm also includes a shield longitudinally affixed to the bolt carrier and movable with the bolt carrier as a unit between the firing and rearward positions along the longitudinal axis with the shield blocking the ejection port when in the firing position and the shield sliding along the inner surface away from the ejection port when moving to the rearward position in conjunction with the bolt carrier.

A mobile terminal includes a terminal body; and a printed circuit board (PCB) assembly mounted to the terminal body. The PCB assembly includes a first PCB, a first electronic device mounted on the first PCB, a second PCB spaced from the first PCB in a first direction, a second electronic device mounted on the second PCB. The first electronic device is disposed to overlap the second electronic device in the first direction. A first shield can may be mounted on the first PCB so as to cover the first electronic device, and configured to shield Electro Magnetic Interference (EMI) between the first electronic device and the outside. A shield block may be disposed at a space between the first and second PCBs, accommodating therein the first and second electronic devices, and configured to shield Electro Magnetic Interference (EMI) between the first electronic device and the outside, and between the second electronic device and the outside.

The invention relates to the technical field of display, and discloses an array substrate, a preparation method of the array substrate, and a display panel. The array substrate comprises an underlayer substrate and a plurality of thin film transistor (TFT) switches, wherein each TFT switch comprises a light shielding block formed on the underlayer substrate, a buffer layer formed on one side, deviated from the underlayer substrate, of each light shielding block, a channel layer formed in a second groove, and a grid insulating layer, a grid electrode, an interlayer insulating layer, a source-drain electrode and a passivation layer formed on one side, deviated from the underlayer substrate, of each channel layer; first grooves with opening directions deviated from the underlayer substrate are formed in the light shielding blocks; and the second grooves are formed in the buffer layers corresponding to the first grooves. According to the array substrate, the light shielding blocks are prepared by non-metal materials, so that a double TFT effect can be avoided; and bulges on the two sides of the first grooves are utilized to shield light without a TFT switch region, so that the stability of the TFT switches can be improved.

A compound-eye imaging device comprises: an optical lens array with integrated optical lenses; a stop member; a photodetector array for imaging multiple images formed by the optical lenses; and a light shielding block for partitioning a space between the two arrays into a matrix of spaces, with light-passing holes, so as to prevent lights emitted from the optical lenses from interfering each other. The light shielding block is formed of unit plates in a stack, each having light-passing windows. Each light-passing window has blackened surface. The unit plates in the stack are alternately reversed upside down and left-right so as to allow the horizontal positions of the light-passing windows for forming each light-passing hole through the unit plates in the stack to be alternately offset in depth direction of the hole, thereby forming an irregular inner wall surface which serves as a light scattering surface to prevent e.g. ghost.

The invention relates to highly dispersed high-stability insoluble sulfur and a preparation method thereof. The highly dispersed high-stability insoluble sulfur is prepared from the following components in parts by weight: 100 parts of insoluble sulfur powder, 0.5-2.0 parts of shielding blocking agent, 0.5-1.0 part of antistatic agent, 0.05-0.2 part of light stabilizer and 0.2-0.6 part of dispersant; the shielding blocking agent is fumed silica; the antistatic agent is a fatty acid alkanolamide type surfactant; the light stabilizer is a salicylate; and the dispersant is polyethylene glycol. According to the method, the insoluble sulfur is mixed with the shielding blocking agent, the antistatic agent, the light stabilizer and the dispersant are mixed together, and the two mixtures are mixed and stirred, dried in vacuum and then filled with oil. According to the highly dispersed high-stability insoluble sulfur and the preparation method thereof, the dispersibility and the stability of the insoluble sulfur are improved and are relatively high.

The rotary closing gamma ray radiator has casing, stepped rotating shaft borne on two sides of the casing and with axial slot, source holder inside the axial slot to hold sources arranged linearly and focused in one point, main shielding block and subsidiary shielding block outside the rotating shaft and shaft sleeve, collimator on the subsidiary shielding block, locating rod set in one end of the rotating shaft, and locating rod limiting switch on the casing. The present invention may be assembled to and disassembled from the system easily; adopts high density W-95 and U-238 as main shielding material; and motor drives rotating shaft to close radiative source in reliable shielding.

The invention discloses a high-reflection object surface defect detection device. Automatic feeding and discharging of an object to be detected and rotation switching of the surface to be detected areachieved through a multi-axis manipulator, an uniquely connected light-ray generator and light-transmitting film uniformly distributed with light-shielding blocks are adopted, the brightness of the light irradiated to the surface to be detected is uniform, and a shadow image of bright and dark alternating and regular mottle is formed; the computer controls the brightness and color of the light emitting source to eliminate the high reflection effect of the surface to be detected, through an artificial intelligence image detection technology, the shadow image acquired from a light inlet hole isprocessed and recognized by an industrial camera, whether the surface defect exists or not and the position and the type of the surface defect are judged, and finally separates good products and defective products, saves and outputs a detection result. The full-automatic high-precision and high-speed continuous detection of the surface defect of the high-reflection object is realized, the application range is wide, the industrial value is high, and the development and production automation process of the visual detection technology are promoted.

The invention provides a foldable safety shielding cover for telegraph pole construction and belongs to the technical field of equipment matched with power transmission and transformation line construction and maintenance. The foldable safety shielding cover comprises a movable hoop capable of hooping a telegraph pole and a shielding cover body and is characterized in that the shielding cover body comprises a plurality of insulating shielding blocks which are vertically stacked, the bottommost shielding block is fixedly connected with the hoop, a connecting structure is arranged between every two adjacent shielding blocks, and a covering circumferential face can be formed by spreading the shielding blocks. The foldable safety shielding cover has the advantages that the adjacent shielding blocks are spliced and connected through fasteners to form the circumferential-face shielding cover body, the hoop can satisfy the mounting requirements of the telegraph poles of different diameters, and the technical problem that during live working, a shielding blanket cannot achieve safety, is time-consuming and labor-consuming and can be easily puncture by an iron part is solved.

A gamma ray radiation device is disclosed. In the cabinet, an internal shielding block, a side shielding block, a radiation source clamp, an primary alignment part are provided. An outer shielding block with a secondary alignment device and a motor are installed on the cabinet cover. The lead screw of the motor drive transfer mechanism can enable the source switch to parallelly slide along the guiding rail for opening and closing the channels of primary alignment device and secondary alignment device. A safety bump proof unit is installed on the side of the beam outlet of the device, which can automatically close the ray channel and cut off equipment electricity source when being bumped by the patients to ensure the patients safety. The invention is an isolated structure, having small volume and small weight, being convenient for disassembled from the main engine block. The invention adopts a comparative light secondary alignment device to realize automatic changing, while the primary alignment part, outer shielding block and cabinet cover is assembled into a integral body, can be disassembled once to change to radiation source assembly.