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:
Sep. 07, 2010
Filed:
Feb. 09, 2007
Teruhisa Yokosawa, Nagano, JP;
Teruhisa Yokosawa, Nagano, JP;
Fuji Electric Device Technology Co., Ltd., Tokyo, JP;
Abstract
A multifocal lens array and a three-dimensional stereoscopic image display apparatus, which has a low cost, simple structure. A two-dimensional image is displayed on a display apparatus and is incident on a multifocal lens array. The array includes a plurality of lenses arranged on a planar surface, respective focal distances of the lenses being selected so that a focal point-containing surface is formed at a surface inclined relative to the planar surface. A stereoscopic diffusing panel including six transparent panels is disposed at the focal point-containing surface, and is moved periodically in a depth direction, so that sectional images of a three-dimensional stereoscopic image are rendered on the stereoscopic diffusing panel through image light from the apparatus, and hence a person viewing light reflected from the stereoscopic diffusing panel can see the three-dimensional stereoscopic image due to an after-image effect.