Method of scanning
AssigneeEastman Kodak Company
InventorDaniel D. Haas
Life of this patent
Estimating the term…
Abstract
A method of scanning is disclosed in which an array of light sources is used to record an image on a light-sensitive recording medium. Each of the light sources is modulated in accordance with an information signal. Multiple passes of the array are made relative to the recording medium, and a set of raster lines is recorded in each pass. The raster lines of successive sets are interleaved to space the raster lines closer together than the spacing of the light sources in the array. In order to provide precise spacing of the raster lines, the array of light sources is advanced a constant distance between successive sets of raster lines.
Claims11
A method of scanning for use in a device having an array of operative elements which interact with an image storage medium, said method comprising the steps of:
- moving said medium and said array relative to each other to produce successive sets of raster lines, at least some of the raster lines in one set being interleaved with raster lines in another set;
- and
- producing relative movement between said array and said medium for a constant predetermined distance in a direction transverse to said raster lines after each set of lines is produced.
A method of scanning for use in a device having an array of N elements which interact with a recording medium, said elements being spaced from each other by a distance d, and successive raster lines being separated by a distance equal to d/k where k is an integer, said method comprising the steps of:
- forming a first set of raster lines on said medium by producing relative movement between said medium and said array, the number of lines in said first set being less than said number of elements;
- producing relative movement between said array and said medium in a direction transverse to said raster lines by a distance equal to Nd/k;
- and
- forming a second set of raster lines which are parallel to said first set of lines.
A method of scanning for use in a device in which a plurality of light beams interact with an image storage medium, said method comprising the steps of:
- moving said medium and said beams relative to each other to produce successive sets of lines, at least some of the raster lines in one set being interleaved with raster lines in another set;
- and
- producing relative movement between said beams and said medium for a constant predetermined distance in a direction transverse to said raster lines after each set of lines is produced.
A method of scanning for use in a device having a plurality of operative elements which interact with an image storage medium, said method comprising the steps of:
- moving said medium and said elements relative to each other to produce successive sets of raster lines, at least some of the raster lines in one set being interleaved with raster lines in another set;
- and
- producing relative movement between said elements and said medium at a constant predetermined velocity in a direction transverse to said raster lines.
A method of scanning for use in a device which includes an array having a matrix of operative elements which interact with an image storage medium, said method comprising the steps of:
- actuating said operative elements to produce a predetermined number of patterns of scan areas, at least some of the scan areas in one pattern being interleaved with scan areas in another pattern;
- moving said medium and said array relative to each other a constant distance in a first direction after each pattern of said predetermined number is produced;
- and
- producing relative movement between said array and said medium for a constant distance in a second direction transverse to said first direction after said predetermined number of patterns are produced.
Dependencies are inferred from the claim text.