Devices and methods for holographic 3D imaging
US10338526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device, system and method for holographic 3D imaging. The device includes a laser light source that delivers a laser beam; an aperture disc including at least two pinholes, the laser beam being filtered by the pinholes so that a reference wave and an object wave are generated; a sample having a first area containing an object to be imaged and a second area without any object, in which the first area and the second area are illuminated by the object wave and the reference wave respectively; and an image sensor that captures an off-axis hologram for reconstructing an image of the object, in which the reference wave and the object wave are interfered on the image sensor and the hologram is captured based on an interference pattern of the reference wave and the object wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.