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                | VM Series: Applications · Practical examples |  |  |  
 
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                      | ESO-VLT Project in Cerro Paranal: Atacama Desert, northern Chile (near Antofagasta) |  |  |  
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                      | In this application small telescopes, so-called "siderostats", are used to calibrate subterranean delay line tunnels on four VLT telescopes. With the help of interference, the light of the four 8-metre telescopes is then added together resulting in resolutions equivalent to a mirror with a diameter of over 100 metres.
 
 
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                            | Halfmann Siderostat has passed the first interference test. |   |  | 
                    
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                      |  |  | C.E.L.T.- Project in California. 35cm Cassegrain telescope from Halfmann Teleskoptechnik |  |  
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                | Night flying in fog: A 60 GHz microwave pulse radar for helicopters, supplied by AEG in Ulm, identifies obstacles and overhead lines (diameter: 3mm upwards) from a distance of up to 300m.
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                | Custom-designed servo amplifier for rotation and elevation from SERVOWATT, in cooperation with Jetter-Steuerungstechnik.
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