Projection apparatus and method for Pepper's ghost illusion
US8328361B2 · kind B2 · utility
4Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image projection apparatus includes a projector, a frame, and a partially transparent screen. The frame retains the screen under tension, such that the screen is inclined at an angle with respect to a plane of emission of light from the projector. The screen has a front surface arranged such that light emitted from the projector is reflected therefrom. The projector projects an image such that light forming the image impinges upon the screen such that a virtual image is created from light reflected from the screen, the virtual image appearing to be located behind the screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.