| 摘要 |
In the invention, the frame consists of lightweight spatial sections determined by two separate parallel tubes which are fastened together by means of transverse rigid flanges (clamps), with jaws connected via tightening screws, it being possible for each pair of parallel tubes to be extended by bent connection sleeves, and another pair of parallel tubes, also connected by oblique (transverse) flanges, on the ends of which parallel tubes are threaded the loops provided on the edges of the articulated modules which form part of the head and of the pivoting tray with bearing sliding strip, of the optical camera. When the support of the head has to be constructed in the form of an inverted "U", each end of the two parallel, mutually connected tubes which form a spatial section is supplemented by an extension, also of spatial section, which added spatial section increases the length of the elongate section of the head. <IMAGE> |
