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:
Oct. 28, 2003
Filed:
Nov. 02, 2001
Kazuya Yamanaka, Hachioji, JP;
Olympus Optical, , JP;
Abstract
A multi-display device synthesizes partial images, by using multiple projectors to construct one image. Each projector has an illumination device, a lattice-like lens array, a display, and a projection lens. The illumination device and lattice-like lens array form secondary light source images that are arrayed in a rectangular lattice. The display is illuminated by the plurality of secondary light source images and displays partial images. The projection lens projects the partial images. Interceptors intercept the margins of projected partial images to obtain uniform luminance. Each interceptor has an intercepting edge that is alternately concave and convex. The height of the convex parts and the pitch between adjoining concave and convex parts are selected so that projections produced by adjoining secondary light source images are displaced from each other by a half phase. Thus, a belt-shaped distribution of luminance values in the margins of the partial images are resolved nearly perfectly.