TWO-VIEWING-PLANES-PROJECTION: THE NEW WAY OF MEASURING SPECTACLE FRAMES

M. Rückwardt, A. Göpfert, K. Anding, M. Schellhorn, E. Reetz, G. Linß
Abstract:
Only the two-viewing-planes-projection measuring principle is able to measure each closed spectacle frame. It is the first functional optical principle for this measuring task. All the other frame tracers on the market depend on a tactile measuring principle. They are especially not able to measure the needed ground of the groove in the frame of so called high curved sport frames. Therefore, till now, a two-dimensional measurement of a pattern plane was used instead of measuring the three-dimensional groove.
The two-viewing-planes-projection setup can calculate out of two 90° shifted perspectives of the spectacle frame by a camera system the form and the circumference for the needed eyeglasses – even for sport frames.
Keywords:
spectacle frame, frame measuring, image processing, three-dimensional measuring
Download:
IMEKO-WC-2012-TC2-O5.pdf
DOI:
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Event details
Event name:
XX IMEKO World Congress
Title:

Metrology for Green Growth

Place:
Busan, REPUBLIC of KOREA
Time:
09 September 2012 - 12 September 2012