Television – Camera – system and detail – With single image scanning device supplying plural color...
Reexamination Certificate
2011-05-31
2011-05-31
Ho, Tuan (Department: 2622)
Television
Camera, system and detail
With single image scanning device supplying plural color...
C348S136000, C348S137000
Reexamination Certificate
active
07952625
ABSTRACT:
A calibration element (1) serves for calibrating the magnification ratio of a camera (3). The calibration element (1) has at least one calibration region (4) in which at least one perforation (5) or indentation is provided. The perforation (5) or indentation can be detected by the camera. The calibration element (1) is sufficiently slight in the calibration region (4) that the detection of an upper edge or lower edge of the perforation (5) or indentation produces only negligible differences. In order to determine the dependence of the magnification ratio on the thickness, the calibration element (1) additionally has at least one support foot (8), whose length (9) is selected in such a way as thereby to produce a variation in the measured magnification ratio of the camera image that can be evaluated.
REFERENCES:
patent: 5149965 (1992-09-01), Marks
patent: 6459772 (2002-10-01), Wiedenhoefer et al.
patent: 6611292 (2003-08-01), Tsai et al.
patent: 6915072 (2005-07-01), Takahashi et al.
patent: 1 251 347 (2002-10-01), None
Chon Peter
Epstein Robert L.
Epstein Drangel LLP
Ho Tuan
Texmag GmbH Vertriebsgesellschaft
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