laboratory apparatus, surveying, optical, measuring, signalling, controlling, regulating, checking and teaching apparatus and instruments, namely optical, electronic, optoelectronic, photoelectrical and acousto-electrical apparatus, for the automatic inspection of areal and web-like materials for the purpose of checking the characteristics of such materials or for the purpose of fault recognition, for the recognition of color, shape, position, texture, or surface nature of articles using image processing, for the purposes of identification, quality control, positioning, handling and control; optoelectronic apparatus for securing and monitoring spatial areas, points of danger and areas of danger; single and multi-beam apparatus, sensors, scanning apparatus (scanners) operating with a scanning beam for scanning specific surfaces and/or spatial regions, spectrometers, and sensors operating on an electronic basis in the area of infrared, visible and ultraviolet radiation or in the field of ultrasonics; electronic interfaces for the above-named goods; computer programs for use in conjunction with optical, electronic, optoelectronic, photoelectrical and/or acousto-electrical apparatus for detecting the presence or absence of objects in an area and/or for controlling movements of objects which might be dangerous, image processing, identification, quality control, positioning, handling and control, securing and monitoring spatial areas, points of danger and areas of danger; optoelectronic and/or acousto-electrical apparatus for electronic emission measurement, process analysis and process control; electronic data processing apparatus; optoelectronically and/or acousto-electronically responsive identification and data transmission apparatus for identifying objects and transmitting identification data to displays and/or data processing units