| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | HOLOGRAPHIC PRINTER | PCT/GB2007001569 | 2007-04-27 | WO2007125347A3 | 2008-06-26 | BROTHERTON-RATCLIFFE DAVID |
| A holographic printer, a hologram copier and a combined holographic printer and hologram copier system is disclosed. The printer, copier and combined system comprise a pulsed RGB laser system (101,...) comprising three short cavity oscillators (i.e. having length <200 mm). With the holographic printer, digital image data is encoded onto three LCOS reflective SLM display (137,...). The combined holographic printer and hologram copier system comprises a single RGB laser system. | ||||||
| 82 | RECORDING MULTIPLE SPATIALLY-HETERODYNED DIRECT TO DIGITAL HOLOGRAMS IN ONE DIGITAL IMAGE | PCT/US2004012798 | 2004-04-23 | WO2004094942A3 | 2005-04-14 | HANSON GREGORY R; BINGHAM PHILIP R |
| Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram. | ||||||
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