Intra-Oral Dental Laser Grid Surface Mapping

Bruce R. Altschuler; John Taboada; Vincent A. Segreto

doi:10.1117/12.954623

25 March 1976 Intra-Oral Dental Laser Grid Surface Mapping

Bruce R. Altschuler, John Taboada, Vincent A. Segreto

Proceedings Volume 0070, Application of Optical Instrumentation in Medicine IV; (1976) https://doi.org/10.1117/12.954623
Event: Application of Optical Instrumentation in Medicine, IV, 1975, Atlanta, United States

Abstract

An optical system was devised which generates a parallelopiped grid interference pattern in 3-D space. When the pattern is projected on a given surface, the surface creates a well-defined modification of the grid pattern which is recorded (by photography, electronic video imaging, etc.) for subsequent topographic analysis. The inexpensive system, designed for safety, ease of use, and versatility in a clinical environment, has been used to record intra-oral surface topography of oral structures in-vivo , as well as other concave and convex structures of health sciences interest. Two low-powered lasers are used, each generating parallel fringe patterns by reflection from thin optical wedges. The two fringe patterns generated are optically adjusted and aligned so that they are of equal spatial frequency, mutually perpendicular, coaxial, and collimated. The spatial frequency of the optically generated parallelopiped grid may be adjusted to optimize topographic measurement of a variety of subjects.

Citation Download Citation

Bruce R. Altschuler, John Taboada, and Vincent A. Segreto "Intra-Oral Dental Laser Grid Surface Mapping", Proc. SPIE 0070, Application of Optical Instrumentation in Medicine IV, (25 March 1976); https://doi.org/10.1117/12.954623

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