OPTICAL FIBER LASER SORTER

摘要

An optical fiber laser sorter containing a device for conveying the material to be sorted, a device for the laser illumination of the material to be sorted, a device for scanning a laser beam, a device for reading and processing an image, and a device for removing defective material. The device additionally contains an optical fiber, the input of which is connected by means of focusing optics to the optical outputs of one or a plurality of lasers, and the output of which optical fiber is connected to focusing and cylindrical optics for scanning a laser beam. A high level of illumination allows for simultaneously registering on multiple devices the readings of reflected and transmitted laser radiation while maintaining high performance in sorting. The reading devices can operate within different spectral ranges. The ability to adjust the power of a plurality of lasers allows for producing the necessary spectral composition of illumination within the workspace. Switching the sources of laser illumination broadens the functional capabilities of the sorter. Fast responsiveness in the control of the laser illumination allows for deactivating one range of light and activating another during the movement of the product, this process being synchronized with the line frequency of a video camera provided with a linear video sensor.