The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2012
Filed:
Dec. 10, 2001
Richard Jonathan Miller, Malvern, GB;
Mark Anthony Gleeson Smith, Malvern, GB;
Richard Jonathan Miller, Malvern, GB;
Mark Anthony Gleeson Smith, Malvern, GB;
F. Poszat HU, LLC, Wilmington, DC (US);
Abstract
A photosensitive areasuch as a photolithographic sheet, in an images plane is notionally subdivided in both dimensions to form contiguous (tiled) sub-areas. Variable illumination meansprovides a selected pixellated light pattern, which is directedto fill a selected one of the sub-areas so that pixels of said pattern are, at least 15 microns across at the sub-area, and control means are responsive to an input signal representative of an image conjointly to control the production and direction of the pixellated patterns so that an entire image is produced over all of the said sub-areas. As shown, the variable illumination means comprises a light sourcewith digital micro-mirror array deflector deviceand the sub-area is selected by lens arraywith a shutterand polariser array10. The latter may be replaced by a two-axis steering mirror and lens array. An analogue micro-mirror array, optionally with, a kaleidoscope, may be used in the illumination means, with (a) collimating optics and lens array; or (b) a focussing macrolens, for sub-area selection.