Side illuminated multimode waveguide
US5465311A · kind A · utility
129Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1994 |
| Grant date | Nov 7, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multimode waveguide having a small thickness has light coupled to the side of the waveguide in order to provide a multimode operation of the waveguide for providing a continuous pattern of totally internally reflected light which is utilized to reconstruct holographic images from a holographic emulsion placed on a surface of the waveguide. This waveguide structure for reconstructuring a hologram has the capability of providing highly efficient hologram reconstruction while using ordinary light sources and is able to use beam diameters greater than the thickness of the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.