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Improvement of the Optical Characteristics of Vision System for Precision Screws Using Ray Tracing Simulation  

Baek, Soon-Bo (Graduate School of NID Fusion Technology, Seoul Nat'l Univ. Sci. Tech.)
Lee, Ki-Yean (Graduate School of NID Fusion Technology, Seoul Nat'l Univ. Sci. Tech.)
Joo, Won-Jong (Mechanical Design and Automation Engineering, Seoul Nat'l Univ. Sci. Tech.)
Park, Keun (Mechanical Design and Automation Engineering, Seoul Nat'l Univ. Sci. Tech.)
Ra, Seung-Woo (Research Center, Seoul Metal Co.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.28, no.9, 2011 , pp. 1094-1102 More about this Journal
Abstract
Recent trends for the miniaturization and weight reduction of portable electronic parts is the use of subminiature components. Assembly of the miniaturized components requires subminiature screws of which pitch sizes are in a micrometer scale. To produce such a subminiature screw with high precision threads, not only a precision forming technology but also high-precision measurement technique is required. In the present work, a vision inspection system is developed to measure the thread profile of a subminiature screw. Optical simulation based on a ray tracing method is used to design and analyze the optical system of the vision inspection apparatus. Through this simulation, optical performance of the developed vision inspection system is optimized. The image processing algorithm for the precision screw inspection is also discussed.
Keywords
Vision Inspection System; Precision Screw; Image Processing; Optical Simulation; Ray Tracing;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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