Illuminated Telecentric Lenses

Edmund Optics Inc.

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Edmund Optics Inc. said its new in-line illumination telecentric lenses offer long working distances and a port for a fiber illuminator, providing tools for difficult machine-vision challenges that require accurate measurements of objects at varying distances, with limited room for imaging and lighting.

Telecentric lenses offer accurate measurement because the apparent size of objects doesn't change with distance from the lens. Edmund Optics said its in-line illumination telecentric lenses overcome that limitation by incorporating a port for a quarter-inch fiber optic lightguide.

The in-line illumination option is critical for many applications that require the light to be placed directly on top of the object under inspection, the company said. This gives the object very flat lighting and even illumination across the entire field of view.

All eight products in the line have a working distance of 120 mm, are designed to work with a sensor as large as a 2/3-in. format, and offer magnifications ranging from 0.5X to 6X, the company said. Each lens also includes a lockable ring to rotate the lens and ensure alignment with the camera sensor.

A second line of shorter working distance lenses will be available on its Web site in the fall, offering a 65-mm working distance, with in-line illumination, Edmund Optics said.

For more information, visit: www.edmundoptics.com; e-mail: [email protected]

Edmund Optics Inc.
101 East Gloucester Pike
Barrington, NJ 08007
Phone: (800) 363-1992
Fax: (856) 573-6295

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Published: June 2008