Patent ID: 7660024
Filing Date: 2010-02-09
Classification: G02B,G02F,G03H,H04N,Y10S

Abstract:
1. A method of making an interlaced waveguide hologram master comprising: forming a first holographic recording by positioning a photolithographic mask at a first position over a substrate coated with emulsion and indexing fluid; positioning a view region mask in a corresponding first position; forming a second holographic recording by positioning the photolithographic mask at a second position over the substrate coated with emulsion and indexing fluid; and positioning the view region mask in a corresponding second position, wherein the second holographic recording is interlaced with the first holographic recording, the view region mask comprises a series of blacked out regions separated by a distance of approximately 2.5 inches; and each of the photolithographic and viewing masks has a series of light transmissive openings having selected inter-distance between the light transmissive openings.