Small-distance position sensing by using holograms of conical waves
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Published on: July 5, 2016
Optics Letters
|October 2, 2009
Abstract:
An optical range sensor is suggested that achieves high resolution at small ranges. It is based on the triangulation principle and combines the illumination and detection equipment in a single unit of large aperture. The inclination of the line foci is achieved by using conical waves. These waves are reconstructed by a holographic optical element.

