Adjusting the calibration of an imaging system
AssigneeEastman Kodak Company
InventorsAllan Warnes, Guy Sirton
Life of this patent
Estimating the term…
Abstract
An apparatus (10) for adjusting the calibration of an imaging system to correct for geometric distortion comprises a rotating drum for receiving recording media (17), a plurality of carriages (18) each having an imaging head (16) with a plurality of addressable imaging channels, and a controller programmed with a lookup table, analytical relationship or algorithm that relates corrective adjustments to be made to the imaging of a given imaging head based on the positions of others of the imaging heads. A method is described for obtaining the lookup table, analytical relationship or algorithm. The method has particular relevance to large imaging systems.
Claims11
A method for changing the calibration of an imaging system comprising a plurality of imaging heads, the method comprising:
- adjusting the imaging of a first imaging head of the plurality of imaging heads based on a position of at least a second imaging head of the plurality of imaging heads.
An apparatus for adjusting the calibration of an imaging system to correct for geometric distortion, comprising:
- a support;
- a drum for receiving recording media, the drum rotatably mounted on the support;
- a plurality of carriages and imaging heads, each carriage having one associated imaging head, each carriage mounted on the support and operable for moving the associated imaging bead along a path parallel to an axis of the drum while directing imaging beams from a plurality of addressable channels of the associated imaging head to form an image on the recording media;
- and
- a controller comprising a lookup table, the hookup table containing information relating an adjustment to be made to the imaging of a first imaging head of the plurality of imaging heads to a position of at least a second imaging head of the plurality of imaging heads.
Dependencies are inferred from the claim text.