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:
Feb. 18, 2003
Filed:
Sep. 14, 2001
Ian Mcdonald Green, London, GB;
Central Research Laboratories Limited, Hayes, GB;
Abstract
An apparatus for displaying an image in space and for providing a background image behind the projected image having an image generator and optical system for projecting an image of an object in an image plane suspended in space. A partially light-transmissive screen is located between the image generator and optical system and the projected image. The screen contains a pattern of juxtaposed light-transmissive regions, through which the image is projected, and regions which are not light-transmissive (ie, substantially opaque areas or reflective surfaces). The background image is printed, or painted, on the opaque areas on the side of the screen remote from the image generator optical system. The screen may be made by printing the background image on opaque areas on a translucent or transparent film, or by printing the background image on a foraminated or perforated opaque sheet.