Beckhoff has introduced four new vision units to its VUI2000 series. The Vision Unit Illuminated (VUI) is a compact unit comprising the camera, illumination, and focusable optics complete with liquid lens technology. It reduces installation and commissioning effort significantly.
Due to the focus adjustment during runtime, the VUI is particularly suitable for variable product heights, as in logistics applications, for example.
All functional components of the VUI are encapsulated in an attractive anodised aluminium housing in protection class IP65/67. In addition to the existing models in the portfolio, the four new devices feature colour or monochrome image sensors with resolutions of 2.3 MP or 3.1 MP in a 16 mm focal length.
The liquid lens used in all VUIs does not require any mechanically moving parts. The unit is calibrated at the factory so that focus adjustment can be carried out with a high degree of accuracy using real dimensions. The optimum choice and combination of lens position, aperture, and resulting depth of field ensures the focus can be adjusted reliably in the distance range from 10 to 2 000 mm, which goes beyond the optimum distance range for the illumination. Temperature-related changes in refractive power are compensated for by means of continuous temperature measurement and a corresponding mathematical model.
For more information visit: www.beckhoff.com
