Method and apparatus for recording one-step, full-color, full-parallax, holographic stereograms
US7813018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2001 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/2695
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Holographic stereograms and holographic optical elements are printed using computer rendered images of three-dimensional computer models or using computer processed images. A coherent beam is split into object and reference beams that interfere with each other at an elemental hologram on a holographic recording material. A voxel-control lens placed in the path of the object beam and in close proximity to the holographic recording material can be used to control the resolution of a holographic stereogram. Interchangable band-limited diffusers and reference-beam masking plates can assist exposure of the elemental hologram and avoid exposing portions of the holographic recording material that are not part of the elemental hologram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.