Paraxial cloak design and device
US9557547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | May 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A paraxial cloaking device provides a cloaking volume in which an item can be hid from view. A cloaking device includes an optical input receiving light rays and an optical output from which a continuous range of directions of the received light rays exit the paraxial cloaking device. The cloaking volume being disposed between the optical input and the optical output. For received light rays having incoming directions non-parallel to the reference optical axis up to a first angle, each of the received light rays exits the cloaking device substantially aligned with the respective received light ray and does not pass through the cloaking volume. The paraxial cloaking device has a unity magnification factor. In some instances, the paraxial cloaking device includes a phase matching element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.