23 July 1993 Dspi multiple viewpoint technique
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Proceedings Volume 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology; 19838M (1993) https://doi.org/10.1117/12.2308729
Event: 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 1993, Budapest, Hungary
Abstract
The current paper describes a new approach to stabil an interferometric system used in optical shop testing: consequent miniaturisation leads to an interferometer with the necessary stability and with the size of a matchbox. Because of its small size this interferometer can be brought to the sample and not the sample to the interferometer. Therefore it can be positioned into machines and places where testing is useful. The interferometer has a Twyman-Green set-up. The light is supplied by a monomode fiber, using a standard HeNe-laser. The interference pattern is imaged to an incorporated CCD-camera and digitised in a PC. Phase shifting technique is used to analyse the interference pattern. Up to five interferometer can be controlled by a single PC-AT Computer. For use in optical shop testing a special software was written. A single menue presents the user all relevant data and indicate him the system status. Modular programming simplifies the software modification for new applications.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
H. Rabal, "Dspi multiple viewpoint technique", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 19838M (23 July 1993); doi: 10.1117/12.2308729; https://doi.org/10.1117/12.2308729
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