Camera array and method for adjusting a lens with respect to the image sensor

A camera arrangement comprising:

• an objective lens in objective lens carrier in a predetermined initial position;
• a controller configured to read information from an image sensor and to determine a contrast value in a predetermined image region, and to determine a first weighted average of contrast values and to store the weighted average linked with a respective distance position in an evaluating device;
• said objective lens being slidable in the direction of the image sensor in response to a signal from said controller;
• said controller being further configured to repeat said determining a first weighted average step and to slide said objective lens until a housing section reaches a predetermined sliding end position;
• said controller being further configured to slide said objective lens to a distance position Wmax in which the value of the stored weighted averages is maximal;
• said objective lens being pivotable into a predetermined first initial pivot position;
• said controller being further configured to read out the image sensor information and determine the contrast values in the predetermined image regions, and to determine a second weighted average of the contrast values and to store the second weighted average linked with a respective pivot position in an evaluating device;
• said controller being further configured to pivot said objective lens by a pivot angle in a predetermined first pivot direction;
• said controller being further configured to repeat said determining a second weighted average step and said pivoting step until a predetermined pivoting end position is reached;
• said controller being further configured to pivot said objective lens into a pivot position Sαmax in which the value of the stored second weighted averages is maximal;
• said housing section being operatively engaged with the cylindrical bore.

A camera meeting image tolerance criteria by adjustment after manufacture and initial assembly of components comprising:

• a housing;
• a planar image sensor being fixedly mounted on said housing;
• a lens mounted in a lens holder, said lens defining a focal plane;
• said lens holder being initially slideable relative to said housing along an axis substantially normal to said planar image sensor such as to enable selectively varying an axial position of said focal plane relative to said image sensor;
• said lens holder being initially pivotable relative to said housing such as to enable selectively varying an angle of said focal plane relative to said planar image sensor;
• said lens holder being fixedly adhered to said housing in a user selected position relative to said image sensor;
• said user selected position being determined according to preconfigured image control criteria and according to maximal values for said image control criteria obtainable before said fixed adherence of said lens holder to said housing by adjusting said sliding and said pivoting of said lens holder relative to said housing.