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Digital hologram printing system utilizing secondary holography

A technology of digital hologram and printing system, applied in the field of holographic display, can solve the problems of high resolution and aberration correction, high requirements for micro lens, complex system, etc., and achieve vibration insensitivity, high-speed large-format hologram printing output , the effect of simple system structure

Inactive Publication Date: 2013-05-01
ACADEMY OF ARMORED FORCES ENG PLA
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AI Technical Summary

Problems solved by technology

This kind of system has high requirements on the microlens, requires extremely high resolution and aberration correction, and the system is relatively complicated.

Method used

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  • Digital hologram printing system utilizing secondary holography
  • Digital hologram printing system utilizing secondary holography
  • Digital hologram printing system utilizing secondary holography

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Embodiment Construction

[0024] The "a digital hologram printing system using double holography" of the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0025] figure 1 The first embodiment of the digital hologram printing system utilizing secondary holography provided by the present invention includes a writing light source (1), a collimation system (2), a spatial light modulator (3), a rectangular aperture (4 ), hologram recording medium (5), hologram computing system (6), servo control system (7), target hologram (8), sub-hologram (9), secondary hologram (10).

[0026]In this embodiment, the target hologram (8) is generated by the hologram computing system (6), which can be generated by optical interference holography or computational holography, and the hologram computing system (6) divides the target hologram by geometric segmentation To form more than 2 sub-holograms (9), this embodiment provides a special case of dividing into 9 s...

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PUM

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Abstract

The invention belongs to the technical field of holographic display and particularly relates to a digital hologram printing system utilizing a secondary holography. The digital hologram printing system utilizing the secondary holography is characterized by comprising a write-in light source, a collimation system, a spatial light modulator, a rectangular diaphragm, a hologram recording medium, a hologram calculating system and a servo control system. By the hologram calculating system, a target hologram is divided into more than two sub-holograms; the sub-holograms are used as new target holograms; the sub-holograms are subjected to secondary holographic calculation to obtain secondary holograms; the secondary holograms are loaded into the spatial light modulator; incident laser emitted by the write-in light source is diffracted; diffraction is carried out on the hologram recording medium to form sub-hologram stripes; secondary holographic write-in of the sub-holograms is implemented; and by writing in the sub-holograms one by one, printout of the target hologram can be implemented. Particularly, in a manner of writing in a plurality of sub-holograms in parallel and splicing and adhering the sub-holograms, rapid printout of large holograms can be implemented and the problem that the large holograms cannot be printed and output by a conventional technology is solved.

Description

technical field [0001] The invention belongs to the technical field of holographic display, and in particular relates to a digital hologram printing system utilizing secondary holography. Background technique [0002] Since the invention of holography, with the development of laser technology and holographic technology, holographic display has penetrated into all aspects of social life and is widely used in packaging, anti-counterfeiting, advertising, printing and other fields. Especially in recent years, 3D holographic display has become a new research hotspot due to its full parallax and multi-angle naked-eye real 3D display effect (such as J W. Perry, Update on 3D displays, Nature 451, 636-637 (2008); S. Tay et.al., An updatable holographic three-dimensional display, Nature 451, 695-698 (2008); P.A. Blanche et al., Holographic three-dimensional telepresence using large-area photorefractive polymer, Nature 468, 80-83 (2010 ); Ozaki et.al., Surface-Plasmon Holography with ...

Claims

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Application Information

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IPC IPC(8): G03H1/12G03H1/22
Inventor 闫兴鹏蒋晓瑜裴闯李强梁浩聪汪熙刘中晅陈卓张鹏炜
Owner ACADEMY OF ARMORED FORCES ENG PLA
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