5 results about "Transmission Scan" patented technology

A novel method is disclosed for obtaining transmission scan data in a PET scanner by incorporating one or more stationary gamma ray sources that provide forward scattered gamma photons that can be used as transmission imaging radiation.

The application provides an array substrate and a display panel. The array substrate comprises a substrate, a common electrode layer arranged on the substrate and comprising a common electrode and a plurality of first scan lines extending along a first direction, and a wiring layer arranged on the common electrode layer and comprising a plurality of second scan lines extending along a second direction intersecting the first direction, each second scan line being electrically connected with a corresponding first scan line, the second scan lines being used for transmitting a scan signal, the potential of the scan signal comprising a pulse peak value and a pulse valley value. The common electrode has the pulse valley value, which comprises making the voltage on the common electrode be the pulse valley value for making a switch transistor be closed, thereby reducing the parasitic capacitance between the common electrode and the second scan lines in most working processes of the pixel, and improving the influence of the coupling effect of the parasitic capacitance between the wiring in the vertical direction of the scan line and the common electrode on the pixel on the display of the display panel in the related art.

The utility model relates to the technical field of drilling tool maintenance, and discloses a petroleum drilling tool thread automatic judging and repairing device, which comprises a drilling tool transmission mechanism, a detection mechanism, a thread detection mechanism and a thread detection mechanism, the drilling tool detection mechanism comprises a laser detection head used for carrying out image acquisition on an external thread and a shoulder surface of the to-be-detected drilling tool and a horizontal adjustment assembly used for adjusting the horizontal position of the laser detection head to enable the laser detection head to be aligned with the to-be-detected drilling tool; the drilling tool conveying mechanism and the drilling tool detection mechanism are both in signal connection with the control device. Therefore, automatic transmission, scanning and judgment repair of the drilling tool threads are achieved, the thread overhaul quality and efficiency are improved, and automatic recording of thread quality inspection data is facilitated.

The application discloses an extendable concrete and rock core sample surface morphology continuous transmission scanning imaging device and method, and belongs to the technical field of rock mass surface morphology optical scanning. The device comprises a base, a hydraulic rod, an arc-shaped support frame, a scanning mechanism and a positioning mechanism. The scanning mechanism moves upward along with the arc-shaped support frame through an adjusting ring, is pushed by a second connecting rod to drive a sliding rod to move the camera unit radially, so that the distance between the camera and the core sample surface is always kept within the focusing range, and the problem that the existing technology cannot adapt to the diameter change of the core sample only by automatic focusing to cause imaging fluctuation is solved. The positioning mechanism can realize self-adaptive adjustment of illumination intensity by linkage of a light shield, a laser range finder can match the scanning speed by linkage of a gearbox, and an extension frame can realize linear butt joint of multiple devices to adapt to continuous scanning of an ultra-long core sample. The application has high imaging definition and high scanning efficiency, and is suitable for core sample digital detection in the fields of water and electricity, traffic and the like.

There is provided a light source device and a display apparatus with the light source device including scan groups each including a driving element for controlling at least one light source, a plurality of scan lines configured to transmit scan signals to the plurality of scan groups, a data line configured to transmit a data signal to the plurality of scan groups, and a controller configured to determine a generation time point of the scan signal and a cycle of the data signal based on a number of scan groups.