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3D Vision redefined: Automate fast, easily and precisely with Ensenso 3D cameras. You can also benefit from the Ensenso SDK, our software solution for seamless integration of 3D cameras.

A prism is a solid that has two faces that are parallel and congruent. These are called the bases of the prism. If you take any cross section of a prism parallel to those bases by making a cut through it parallel to the bases, the cross section will look just like the bases.

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Ensenso 3D cameras enable precise classification and counting of objects. Identification is further optimised by additional colour information. Another application is the sorting out of defective parts based on detected size deviations. In addition, fast volume determination enables efficient size classification. This versatile technology is used in order picking and quality control.

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If you shine a beam of white light through a triangular glass prism, it will break the light into its various wavelengths producing the characteristic 'rainbow'. In physics textbooks the prism is usually drawn on its side as in the figure above.

3D Machine Vision is considered to be the future of Robot Vision. The integration of 3D data makes it possible to precisely capture and interpret the environment, enabling tasks in robot technology to be solved more efficiently. This applies both to demanding assembly processes, such as gluing or welding, and to the notoriously tricky process of "bin picking". With the Ensenso 3D cameras, IDS offers a solution for 3D image processing that is not only impressive in terms of precision, but also in terms of cost-effectiveness and speed.

In the figure above select "allow oblique" in the options menu. The figure is a right prism. If you drag the top orange dot sideways you can make the prism oblique (or 'skewed'). Cross sections parallel to the bases are still congruent to the bases. For right prisms the side faces are rectangles For oblique prisms they are parallelograms.

In the figure above, click 'show cross-section' and drag the cross section up and down. Note that it is always congruent to the bases; that is, it always has the same shape and size. This is true for right and oblique prisms.

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A right prism is one where the bases are exactly one above the other as in the left image. This means that lines joining corresponding points on each base are perpendicular to the bases.

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This also follows the shape of the bases. If the bases are regular polygons, then the prism is also called a regular prism. Likewise, irregular prisms have bases that are irregular polygons.

Ensenso 3D cameras are used, for example, for precise patient positioning during magnetic resonance imaging (MRI) and computer tomography (CT) examinations or radiotherapy. 3D image processing also helps in orthopaedic applications and services, e.g. for measuring feet to produce custom-fit insoles and splints or for precise measurement of the back.

Our compact 3D cameras can be used in a variety of ways for robot applications in factory automation and logistics. For example, they support de-(palletising), conveyor belt loading, bin picking during loading and unloading of trucks, in worker assistance systems or in weld seam or adhesive bead inspection. Hand-eye calibration for robots is integrated in the Ensenso SDK. The use of CAD data helps to localise objects precisely. At the same time, knowledge of the position of objects and obstacles enables fast gripping movements through complete motion planning.

Prisms are named for the shape of the base. In the figure above, select the various examples of a prism in the pull-down menu. Note the way the name of the prism depends on the shape of the bases.