Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1980-11-07
1983-03-29
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250563, 356237, 356240, 358106, 209526, G01N 2190
Patent
active
043784941
ABSTRACT:
An apparatus and a method for identifying defects in objects, such as glass bottles, utilizing data signals generated from a photodiode camera and light source. Event signals are generated when the magnitudes of adjacent data signals differ by an amount which exceeds a threshold level. Signals are also generated to identify the location of each event signal with respect to a corresponding photodiode and to identify during which vertical sweep of the object the event signal was generated to associate the event signal with a point on the object. The event signals are processed to identify defects. Events in proximity in the same sweep are identified as a string. Event magnitudes and totals in a string are compared with predetermined values to identify defects. Strings in proximity are identified as a blob. Event magnitudes and totals and blob width are compared with predetermined values to identify defects.
REFERENCES:
patent: 3827812 (1974-08-01), Heimann
patent: 3969577 (1976-07-01), Lloyd et al.
patent: 4213702 (1980-07-01), Bryant et al.
patent: 4292672 (1981-09-01), Southgate
Click M. E.
Nelms David C.
Owens--Illinois, Inc.
Welch G. T.
Westin Edward P.
LandOfFree
Apparatus and method for detecting defects in glass bottles usin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for detecting defects in glass bottles usin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting defects in glass bottles usin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1205026