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 Line camera for imaging object strips on photosensitive detector lines

Details
Inventors: Blechinger, Fritz; Hofmann, Michael;
Assignee: Messerschmitt-Bolkow-Blohm GmbH (DE)
Primary Examiner: Britton; Howard W.
Assistant Examiner: Ho; Tuan V.
Attorney, Agent or Firm: Evenson, Wands, Edwards, Lenahan & McKeown

The invention relates to a line camera for imaging object strips on photosensitive detector lines, having an objective producing a line image of an object strip, having a ray deflecting system situated at the site of the line image by which the line image is divided into adjacent image sections, in such a manner that paths of the rays pertaining to adjacent image sections are deflected into respective different directions in space. One optical relay system respectively is optically arranged behind each image section for the imaging of the respective image section on its own respective detector line. The total number of optical relay systems is divided into at least two groups, each group being assigned to a different direction in space. The optical relay systems of each individual group image the image sections assigned to them in a respective joint focal plane on their respective own detector lines, which, in the respective focal plane, are arranged above one another in a line directed parallel with respect to the line image. One aperture is arranged respectively between each detector line and the optical relay system assigned to it.

DETAILED DESCRIPTION What is claimed: 1.
A line camera for imaging object strips on photosensitive detector lines, having an objective producing a line image of an object strip, having a ray deflecting system situated at the site of the line image by means of which the line image is divided into a plurality of adjacent image sections in such a manner that paths of the rays pertaining to adjacent image sections are directed into respective different directions in space, as well as having an optical relay system arranged optically behind each image section for imaging the respective image section on a respective separate detector line, wherein the total number of the optical relay systems is divided into at least two groups, each group being assigned to another direction in space, the optical relay systems of each individual group each imaging the image sections assigned to them in a common focal plane on their respective separate detector lines which are arranged above one another in the respective focal plane in a line directed in parallel to the line image, and one aperture respectively being arranged between each detector line and the respective optical relay system assigned to it.
2.
A line camera according to claim 1, wherein the apertures are arranged such that a path of the rays is obtained which is telecentric for the optical relay systems on the object side and for the objective on the image side.
3.
A line camera according t claim 1, wherein the ray deflecting system is composed of at least four mirror strips which alternately deflect into a different direction i space and extend in the direction of the line image, the succession of the directions in space repeating itself at least four times according to the number of optical relay systems pertaining to a group.
4.
A line camera according to claim 2, wherein the ray deflecting system is composed of at least four mirror strips which alternately deflect into a different direction in space and extend in the direction of the line image, the succession of the directions in space repeating itself at least four times according to the number of optical relay systems pertaining to a group



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