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Machine Vision Working Distance Calculator

Lens calculator calculating the working distance a the object distance refers to the distance between the object test object scene also field of view and the first principal plane of the lens groups somewhere in the optical system. For the best advice training and sales of machine vision lenses please click here.

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Field Of View Calculator Channel Systems

Some lenses such as objective lenses have a fixed working distance.

Machine vision working distance calculator. It is assumed the cameras sensor has a 43 aspect ratio the sensor is a common size and that you will use all the pixels. The depth of field depends on the adjusted lens aperture the distance to the test object the focal length and the pixel size of the camera. Many lenses will have a working distance range. Lens calculator calculate field of view focal length or object distance by providing the other two properties. The first and often easiest option is to change the working distance from the lens to the object. Working on a machine vision project requires understanding each part of the system including light sources frame grabbers computers and perhaps most important of all the lens camera combination. The calculators below will help you determine the lens focal length you need. When using fixed focal length lenses there are three ways to change the field of view that the system camera and lens. The cognex lens advisor makes it easy to select the right lens for each vision or id application. The depth of field dof is the range within which the object can move away from or towards the camera without resulting in a blurred image. Calculating camera sensor resolution and lens focal length. How do i make sure that i have the correct lens focal length and image sensor resolution. I am trying to choose a camera and lens for my imaging system. It is more flexible and is smart enough to suggest specific. If the working distance is not identical for each object that the lens is imaging the measurement of each object will vary due to the magnification shift.

Depending on the information you have available about your application select the option that gives the information you would like the lens advisor to calculate. The scheimpflug condition is a way to extend the depth that is being observed by the machine vision system by tilting the object plane and the image plane as shown in figure 7. Or try our new machine vision lens calculator instead. How machine vision companies can stay flexible with itar and similar frameworks. The working distance is the distance from the front of the lens to the object under inspection see fig. The double pixel size is often set taken permissible. Moving the lens farther away from the object plane increases the field of view. Distance from the front of the lens to the object under inspection.