Optics: measuring and testing – By configuration comparison – With two images of single article compared
Patent
1996-03-22
1999-03-09
Font, Frank G.
Optics: measuring and testing
By configuration comparison
With two images of single article compared
356237, G01B 1100, G01N 2100
Patent
active
058808485
ABSTRACT:
The invention relates to a process for the optical testing of a surface of an object, particularly a compact disc, in which the surface is illuminated by at least one light source and the light reflected and/or scattered by the surface is projected onto at least one substantially flat, light-sensitive element of a light-sensitive receiver. The receiver consists of several pixels in the form of a grid in the line direction and the space direction. In a test phase at least one actual image is generated that is compared with at least one desired image which was produced in a read-in phase. To produce an image of the surface with more information the invention provides that during the read-in phase and/or the test phase at least two images of the surface are taken and the image of the surface which is projected on the light-sensitive element is displaced by at least a fraction of the dimension of a pixel in each case in at least one direction with respect to the light-sensitive element. In this way it is possible to detect the ambient field of a pixel so that the printed regions or the like can be classified for an improved evaluation, particularly when producing the desired image.
REFERENCES:
patent: 3740467 (1973-06-01), Kubo et al.
patent: 5268735 (1993-12-01), Hayashi
"Hohe Auflosung mit 21 Millionen Pixel", Lenz, Funkschau Teilz 1, pp. 46-47, Teil, pp. 61-63 Apr. 1989.
Reimar Lenz, "ProgRes 3000: A Digital Color Camera with a 2D Array CCD Sensor and Programmable Resolution up to 2994.times.2320 Picture Elements", in Medtech '89: Medical Imaging, 6-8 Nov. 1989, SPIE vol. 1357 pp. 204-209.
Basler Norbert
Fiedler, deceased Jorg
Hayes Bryan
Herrmann Frank
Basler GmbH
Font Frank G.
Merlino Amanda
LandOfFree
Process and device for high resolution optical testing of surfac does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and device for high resolution optical testing of surfac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for high resolution optical testing of surfac will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1326752