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11 January 1999 Miniaturized fiber optic 3D mapping system
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3D mapping has many applications including robot navigation, medical diagnosis and industrial inspection. However, many applications remain unfilled due to the large size and complex nature of typical 3D mapping systems. This paper describes a 3D mapping system being developed by the Photonics Laboratory at Virginia Polytechnic Institute which uses a fiber optic coupler as a fringe generator or grid projector-in essence forming a Young's Double Pinhole interferometer. Two significant benefits are derived from this arrangement. First, the fringe projector is much smaller than what is currently used allowing this system to be used where others cannot. Second, the laser source can be remotely located from the fringe generator, hence further reducing the size of the sensor head without loss of optical power. The system design, mathematical model, calibration procedures and initial results are presented.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Timothy L. Pennington, Ming Luo, Hai Xiao, and Anbo Wang "Miniaturized fiber optic 3D mapping system", Proc. SPIE 3538, Process Monitoring with Optical Fibers and Harsh Environment Sensors, (11 January 1999);


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