Laser Displacement Sensor :
Newly Developed Li-CCD (Linearized CCD)
High-accuracy Ernostar Lens, and Other Unparalleled, Advanced Technologies
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Advanced CCD Sensor Technology
KEYENCE has further improved the CCD sensor technology of the well-established LK Series and has developed new technologies including the Li-CCD and high-accuracy Ernostar lens
Li-CCD*
Errors in pixel edges are reduced to achieve accuracy that is two times greater than conventional models.
Since a CCD has digital output characteristics for each pixel, the errors caused by gradual outputs generated at the edge of pixels were the barrier to higher accuracy. As a countermeasure, KEYENCE has developed an Li-CCD that outputs the position of reflected light in a pixel, achieving excellent accuracy that is two times higher than conventional models. In addition, the dedicated design of the sensor has achieved a speed that is 25 times faster and a sensitivity 10 times better than conventional models. * Li-CCD= Linearized CCD
Measurement Principle
The Li-CCD Enables High-accuracy Measurements
The measurement principle uses triangulation. The position of the reflected light on the Li-CCD moves as the position of the target changes. The displacement amount of the target is measured by detecting this change.
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