Optics: measuring and testing – Inspection of flaws or impurities – Bore inspection
Patent
1977-04-22
1978-04-04
McGraw, Vincent P.
Optics: measuring and testing
Inspection of flaws or impurities
Bore inspection
250571, 356175, G01N 2122, G01J 346
Patent
active
040824659
ABSTRACT:
Each original in a strip of such originals is scanned during longitudinal travel of the strip using a scanning spot which repeatedly traverses a stationary scan line extending transverse to the direction of strip travel. The scanning spot has a scanning speed such that the scanning spot travels from one to the other end of the stationary scan line in a time less than the time in which the strip travels a distance equal to the breadth of the scan line. The scanning spot which repeatedly traverses the scan line is generated using a light shield having a slit which delimits the scan line and a rotating disk having equiangularly spaced apertures which move through a stationary light beam passing through the moving strip of originals.
REFERENCES:
patent: 3034400 (1962-05-01), Biedermann et al.
patent: 3435243 (1969-03-01), Webb
patent: 3527540 (1970-09-01), Bowker et al.
patent: 3768913 (1973-10-01), Klimecki
Bickl Horst
Fergg Berthold
Findeis Gunter
Knor Bernhard
Payrhammer Bernd
AGFA-Gevaert A.G.
McGraw Vincent P.
Striker Michael J.
LandOfFree
Determination of extreme density values of photographic original does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Determination of extreme density values of photographic original, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of extreme density values of photographic original will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-721357