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:
Jun. 07, 2005
Filed:
Jan. 11, 2002
Volkmar Boerner, Freiburg, DE;
Andreas Gombert, Freiburg, DE;
Benedikt Bläsi, Freiburg, DE;
Abstract
The present invention relates to a method for producing light-scattering elements by holographic illumination of a layer () of a photo-sensitive material on a support plate () and subsequent development of the layer () in order to generating a surface structure. The method is distinguished in that the illumination occurs using at least two mutually coherent luminous beams () which have passed through one or a plurality of primary diffusers () respectively were reflected at one or a plurality of primary diffusers, the luminous beams () being irradiated from different directions and being at least partially superimposed on the layer () while forming an interference pattern. This method permits producing diffusers having a leveled scatter profile in a simple manner.