High-resolution images of an unfocused laser beam were obtained by masking the aperture of an annular folded optic imager. Image processing yielded calibrated distance measurements correlated to the separation of the beam spots.
© 2009 OSA
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.3620) Instrumentation, measurement, and metrology : Lens system design
(150.0150) Machine vision : Machine vision
(150.5670) Machine vision : Range finding
B. R. Nadler, E. J. Tremblay, J. H. Karp, and J. E. Ford, "Range Finding Using a Masked Folded Optic Imager," in Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, OSA Technical Digest (CD) (Optical Society of America, 2009), paper FWG2.
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