Patent ID: 9030515
Filing Date: 2015-05-12
Classification: B41J

Abstract:
1. A method for generating a substantially one-dimensional scan line image made up of a one-dimensional series of light pixels in response to predetermined scan line image data, the method comprising: generating homogenous light by causing one or more light sources to generate one or more light beams having a first flux density such that all of said generated one or more light beams is directed into a homogenizer, and such that the homogenous light leaving said homogenizer forms a substantially uniform two-dimensional homogenous light field and has a second flux density, wherein the first flux density is greater than the second flux density; modulating the homogenous light in accordance with the predetermined scan line image data such that the modulated light forms a two-dimensional modulated light field; and anamorphically imaging and concentrating the modulated light such that the concentrated modulated light forms the substantially one-dimensional scan line image, wherein each of said light pixels comprises simultaneously combined portions of said two-dimensional modulated light field received from a plurality of light modulating elements that are aligned substantially perpendicular to said scan line, wherein anamorphically concentrating the modulated light comprises: projecting and magnifying said modulated light portions in a cross-process direction using first and second focusing lenses such that the modulated light portions remain parallel in a process direction between the first and second focusing lenses, and concentrating said modulated light portions in a direction parallel to the process direction using a third focusing lens positioned downstream from said first and second lenses.