Abstract: An image sensor includes a first sensing unit. The first sensing unit includes a pair of photodiodes formed in a substrate and spaced by a deep trench isolation structure, an outer grid over the pair of photodiodes, a color filter filled in the outer grid, and an inner grid disposed in the color filter. The color filter overlaps the pair of photodiodes. The inner grid includes a first spacer, wherein the first spacer is rotated relative to the deep trench isolation structure.

Abstract: A system for monitoring a helium compressor and a magnetic resonance imaging device may include photoelectric converter configured to monitor a status current of a helium compressor; a dry contact signal converter having a dry contact switch and a signal converter. The dry contact switch may include a first pair of switch contacts connected to an output of the photoelectric converter and a second pair of switch contacts connected to an output voltage of the helium compressor. The signal converter may be configured to collect an action signal of the dry contact switch, and convert corresponding fault information into a network signal and send the same to a network server. Personnel may be notified of the fault information in a preset communication mode using a preset communication address.

Abstract: A system for monitoring a helium compressor and a magnetic resonance imaging device may include photoelectric converter configured to monitor a status current of a helium compressor; a dry contact signal converter having a dry contact switch and a signal converter. The dry contact switch may include a first pair of switch contacts connected to an output of the photoelectric converter and a second pair of switch contacts connected to an output voltage of the helium compressor. The signal converter may be configured to collect an action signal of the dry contact switch, and convert corresponding fault information into a network signal and send the same to a network server. Personnel may be notified of the fault information in a preset communication mode using a preset communication address.

Abstract: An automatic material feeder includes a feeding member defining a feeding track, a driver, a sliding member driven by the driver and defining a latch portion and a transportation portion communicating with the latch portion, a gas generator, an air intake conduit connected to the gas generator, and a delivery conduit. The sliding member transfers material from the feeding track to a position where the latch portion corresponds to the delivery conduit, and the transportation portion communicates with the air intake conduit, and the gas generator generates gas to force the material received in the latch portion to enter the delivery conduit.