Abstract: A processing device to be used in an inspection apparatus for optical inspection of samples is configured to be used with an optical inspection device, to be communicatively coupled to a user interface, to receive input data from the user interface and/or from the optical inspection device, and to provide output data to the user interface, and to be communicatively coupled to at least one other processing device to allow data transfer. The processing device is configured as a master unit, and the at least one other processing device is configured as a slave unit. The processing device is further configured to provide a data storage for storing data received as input and/or to be provided as output, and to allow the at least one other processing device to access the data storage to store data and/or to retrieve data.

Abstract: A processing device to be used for optical inspection of samples is configured to be communicatively coupled to a camera of an optical inspection device and to a user interface, to receive input data from the user interface and/or from the camera, to provide output data to the user interface, to be communicatively coupled to a storage device, to provide instructions, by accessing instruction data stored at the storage device, for optical quality inspection of samples to be performed by a user via the user interface. The instructions include instructions regarding what kind of optical quality inspection to be performed on which sample. The processing device is further configured to receive quality report data from the optical quality inspection via the user interface, and/or image data of images acquired by the camera, and to store the quality report data and/or the image data in the storage device.

Abstract: Bidirectional circularly polarized antenna element and bidirectional circularly polarized array antenna are provided, and comprising a dielectric substrate, a feeder, a radiation patch, a first plane, a second plane, a first coupling assembly and a second coupling assembly which are embedded in the surface of the dielectric substrate. The first plane and the second plane of the antenna element are kept at different heights, and compared with the solution that two planes at the same height can only generate linear polarization radiation in the prior art, the circular polarization radiation can be generated, which solves the problem of linear polarization mismatch. Furthermore, two coupling assemblies are introduced into two sides of the radiation patch to enable the coupling effect with the radiation patch, such that the frequency bandwidth of the circularly polarized antenna can be greatly improved without increasing the size of the antenna.