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Sensors/MEMS??

On-axis lights address challenging vision-sensing apps

Posted: 31 Oct 2007 ?? ?Print Version ?Bookmark and Share

Keywords:vision sensing? on-axis lights? sensor?

On-axis light

Banner Engineering Corp. has introduced on-axis lights to its line of lighting accessories for challenging vision-sensing applications. On-axis lights provide optimal illumination of an inspected part by delivering collimated illumination in the same optical path as camera. These lights provide even, diffused illumination of flat, reflective surfaces perpendicular to the camera.

On-axis lights are available in standard sizes of 100mm x 100mm or 50mm x 50mm and a variety of specialty sizes. Models are available with infrared or visible red, green, white or blue LEDs, and all models offer continuous or strobed operation through a dedicated input line. In addition, on-axis lights are available with glass dust covers for protection in dirty, dusty plant environments. List price starts at $695 for a 50mm and $995 for a 100mm light.

"On-axis lights are placed between the vision sensor and the inspected part, and a beam splitter is used to direct light rays along the same axis as the camera lens, illuminating reflective surfaces of a target object which are perpendicular to the camera," said Dan Holste, director for Banner vision sensors. "Surfaces at an angle to the camera and non-reflective surfaces appear dark." Holste adds, "With this sophisticated design, on-axis lights provide a unique approach to lighting reflective surfaces otherwise difficult to illuminate."

Banner on-axis lights provide optimal illumination for challenging vision sensing and inspection applications where reflective materials are used, including food, pharmaceutical, electronic and automotive applications.




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