Development of oral cavity inspecting system

Hongxia Zhang; Di Wu; Dagong Jia; Yimo Zhang

doi:10.1117/12.837519

20 November 2009 Development of oral cavity inspecting system

Hongxia Zhang, Di Wu, Dagong Jia, Yimo Zhang

Proceedings Volume 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 75110F (2009) https://doi.org/10.1117/12.837519
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

An oral cavity inspecting system is designed and developed to inspect the detail of teeth. The inspecting system is composed of microscopic imaging part, illuminating part, image capture and processing, display part. The two groups of cemented lenses were optimized to minimize the optical aberration and the collimated beam light is gotten between the two lenses. A relay lens is adopted to allow the probe to access the oral cavity depth. The illumination optic fiber is used and the brightness and color temperature can be adjustable. The illumination fiber end surface is oblique cut and the optimum angle is 37°. The image of teeth is imaged on CMOS and captured into computer. The illumination intensity and uniformity were tested and the proper parameter is set. Foucault chart was observed and the system resolution is higher than 100lp/mm. The oral inspecting system is used to test standard tooth model and patho-teeth model. The tooth image is clear and the details can be observed. The experimental results show that the system could meet dental medical application requirements.

Citation Download Citation

Hongxia Zhang, Di Wu, Dagong Jia, and Yimo Zhang "Development of oral cavity inspecting system", Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 75110F (20 November 2009); https://doi.org/10.1117/12.837519

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KEYWORDS

Imaging systems

Teeth

Endoscopes

Inspection

Lenses

Image processing

Image sensors

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