One-step orthoscopic image reconstructing technique for a hologram constructed through a dispersive medium专利检索-全息图像光学专利检索查询-专利查询网

One-step orthoscopic image reconstructing technique for a hologram constructed through a dispersive medium

阅读：514发布：2023-11-01

专利汇可以提供One-step orthoscopic image reconstructing technique for a hologram constructed through a dispersive medium专利检索，专利查询，专利分析的服务。并且A technique for reconstructing an orthoscopic image of an object from a hologram that has been constructed of that object through a radiation dispersion medium. The technique includes reconstructing from the hologram a first order diffracted beam with a wave front conjugate to that of the dispersed object bearing wave front recorded on the hologram. The first order diffracted beam is reconstructed in a manner to form in real space an image of the dispersive medium used during the hologram construction. A phase conjugate of the dispersive medium used in the hologram construction is positioned in the reconstructed beam. An orthoscopic image of the object is thereby formed.，下面是One-step orthoscopic image reconstructing technique for a hologram constructed through a dispersive medium专利的具体信息内容。

权利要求

1. A method of recording and reconstructing a coherent information-bearing radiation wave front comprising the steps of: dispersing said information-bearing radiation wave front according to a given relative phase varying function thereacross, recording as a hologram the dispersed information-bearing radiation wave front at a hologram-detecting surface positioned in the path of said dispersed wave front, reconstructing from said hologram a phase conjugate of said dispersed information-bearing radiation wave front, and dispersing said reconstructed conjugate wave front according to a relative phase varying function thereacross that is a phase conjugate of said given relative phase varying function that is used to disperse the information-bearing radiation wave front in constructing the holograms.

2. The method as defined in claim 1 wherein said information-bearing radiation wave front is derived from a physical object by illumination thereof with a monochromatic spatially coherent radiation beam, whereby an orthoscopic image of the object is reconstructed from said hologram.

3. The method as defined in claim 1 wherein the step of recording the hologram includes directing at said hologram-detecting surface a reference radiation wave front mutually coherent with the information-bearing radiation wave front, said wave fronts intersecting with a finite angle therebetween and both directed against said detecting surface at one side thereof.

4. The method as defined in claim 3 wherein the step of reconstructing the hologram includes illuminating with monochromatic spatially coherent radiation a side of the detecting surface opposite to that side against which the information-bearing and reference wave fronts are directed, said reconstructing radiation wave front directed against the detecting surface in a direction antiparallel with the direction of the reference wave front and having an opposite curvature thereto.

5. The method as defined in claim 1 wherein the step of dispersing the information-bearing radiation beam comprises positioning therein a phase-modulating structure having thereacross a periodically varying relative phase characteristic.

6. The method as defined in claim 5 wherein the step of dispersing the reconstructed conjugate wave front includes repositioning said phase modulating structure therein and displaced relative to the reconstructed wave front one-half said structure''s period of phase variation from its position during the hologram construction.

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One-step orthoscopic image reconstructing technique for a hologram constructed through a dispersive medium

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