Optical element and manufacturing method thereof
US6934074B2 · kind B2 · utility
10Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2240/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element has of a set a plurality of three-dimensional cells. A specific amplitude and a specific phase are defined in each individual cell. Each cell has a concave part formed by hollowing a part having an area corresponding to the specific amplitude by a depth corresponding to the specific phase. The individual cell has a specific optical property so that, when incident light is provided to the cell, emission light is obtained by changing an amplitude and a phase of the incident light in accordance with the specific amplitude and specific phase defined in the cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.