Apparatus and method for optically projecting pixel-based image information onto a light-sensitive material
AssigneeAgfa-Gevaert
InventorsKnut Oberhardt, Gudrun Taresch, Markus Ehbrecht, Reimund Munch
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Abstract
An apparatus for optically projecting pixel-based image information onto a light-sensitive material has an image-generating device, an optical projection device, and a device for laterally offsetting the projected image of the image-generating device to produce a plurality of mutually offset partial images in the image plane. The offsetting device has two optical elements arranged in sequence in the light path of the projection. The projected partial images are offset relative to each other by tilting one or both of the optical elements.
Claims10
An apparatus for optically projecting pixel-based image information onto a light-sensitive material that extends in an image plane, the apparatus comprising an image-generating device for producing partial images, an optical projection device, and a device for laterally offsetting a projected image of the image-generating device to produce a plurality of mutually offset partial images in the image plane, wherein the image-generating device, the projection device and the offsetting device are arranged in a light path of the apparatus, wherein the offsetting device comprises a first optical element and a second optical element arranged one after the other in the light path, and wherein each of the first and second optical elements is movable.
A method for optically projecting pixel-based image information onto a light-sensitive material that extends in an image plane, comprising the steps of:
- producing at least one first partial image in a first position in the image plane by means of an image-generating device that is operable to generate partial images from the pixel-based image information,
- producing at least one further partial image in at least one further position in the image plane, wherein the further position is offset in relation to the first position by moving at least one of a first optical element and a second optical element that are arranged one after the other in a light path of said optical projection.
Dependencies are inferred from the claim text.