Optical measuring machine OptiMe

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OptiMe is a new family of optical measurement systems, based on stereo vision and photogrammetry, consisting of two high-resolution digital cameras a structured light projector and a PC running proprietari data acquisition and processing software. Depending on camera position and employed lenses, measurement field can range from a few square centimeters to several square meters, and can be further increate by combining several partially overlapping scans through markers, or simply based upon the object’s shape. OptiMe has two operating modes: Active mode: a sequence of structured light patterns is shone on the object and read by the cameras. This way, OptiMe can scan dense clouds comprising millions of points, and obtain a 3D representation of the surface even if it is completely smooth and lacks any distinctive features. Clouds can be converted into mesh and exported in several formats, including STL and PLY. This mode is useful both for reverse engineering – obtaining a CAD representation of a physical model – and quality control– for example, verifying that the shape of bodywork matches the CAD model. Passive mode: if edges of a surface (including pockets, margins and holes) need to be measured instead of the surface itself, non-structured light is sufficient to make such details readable by cameras. In both situations, OptiMe’s accuracy ranges from 0.01 mm or better for smaller part sto 0.2 mm for wider fields. Optical systems boast a far higher throughput (as in the number of points being acquired in a unit of time) than touch measurements machines, which allows for faster measurements; absence of contact also avoids any possible damage to surfaces.