Other

Computer Sciences Corporation

Lloyd Huff

William T Rhodes

Helene P Iavecchia

Richard L Fusek

A near-real-time holographic display for operations at a remote work site where a three dimensional database is collected with a laser range scanner. The database is then divided into discrete two dimensional segments or depth planes. A holographic recording material is then sequentially exposed to multiple depth planes through a stack of three spatial light modulators in a multiplane exposure process. This procedure is repeated for all depth planes in the database. The holographic recording material is then rapidly developed for viewing of the remote work site in a holographic image that simulates natural vision.

Near real-time holographic display for remote operations

In a method and apparatus for recording a holographic image on a photosensitive medium or film which is capable of being viewed from a wide vertical viewing angle when illuminated by incoherent light, a source of coherent light (10) is divided by splitter (14) into a reference beam (16) and an image or object beam (18). The image beam is directed toward the object, either a transparency (20) or a three-dimensional object (20a), and the image thereof is focused in the vertical plane by means of an anamorphic lens (30) onto a vertical dispersion element (35) and the image thereon is gathered and focused in the vertical plane by means of anamorphic lenses (36 and 38) onto the film (40). In the horizontal plane, the image is focused by an anamorphic lens (42) onto a horizontal exit pupil forming means which may include horizontal dispersion element (45) and the light therefrom is directed onto the film (40). The reference beam (16) is directed onto the film from either the back or the front at a predetermined angle in a vertical plane. The holographic image may be recorded in full color by simultaneously or sequentially generating coherent light in the primary colors and directing the reference beam of each color onto the film at a unique predetermined angle in a vertical plane. The image is reconstructed by directing incoherent light onto the film at the same angles in the vertical plane as the reference beam.

Growing community of inventors

Dayton, OH, United States of America

Lloyd Huff