Larger Phase Reconstruction Method of Single Digital Hologram Based on Intensity Transfer Equation
A technology of digital hologram and transmission equation, which is applied in the field of large phase reconstruction, and can solve problems such as the influence of defocus error and the complexity of unwrapping algorithm
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[0016] The intensity transmission equation realizes a larger phase reconstruction system of a single digital hologram, and different optical path systems of a single digital hologram can be selected according to the characteristics of the object to be reconstructed. The specific implementation flow chart of this invention is as attached image 3 shown.
[0017] When the phase information of the object to be reconstructed is relatively simple, a single-beam coaxial holographic recording system can be used. The monochromatic laser light emitted by the He-Ne laser source forms a plane wave after beam expansion, filtering and collimation system (i.e. mirror M1, lens L1 and L2). When the diffracted wave meets the direct light wave and interferes, a coaxial hologram is formed, and the image recording system records a single coaxial hologram.
[0018] When the phase information of the object to be reconstructed is complex, sensitive to interference such as noise, or has high requir...
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