Three dimensional screen display
US6714173B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/307
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A screen display apparatus is capable of visually presenting to a viewer E a secondary image 30 (virtual image and/or a real image) as an “inclined” a primary image (subject) 10, and is vertically inclined with respect to said viewer at a position, which is different from a position of said primary image 10. This is realized through an action of a lens 20. With the “inclination, the viewer E views the secondary image 30 with a three-dimensional feeling. The “inclination” is effective when the upper part of the secondary image 30 is located farther from the viewer E than the lower part thereof, and when its angle &thgr; is within a range of 3° to 40°. Further, a screen display apparatus, a plurality of secondary images 30 (in the figures, virtual images 31 and 32) on a primary image 10 as a subject are formed by a microlens array 20 including convex microlenses 221 and concave microlenses 223. The screen display apparatus visually presents those secondary images 30 to a viewer E so that those images are viewed as a single image. As a result, an image is displayed with an intensive three-dimensionally feeling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.