Monochrome full-parallax holographic three-dimensional one-step printer light path structure

Abstract

The invention provides a monochrome full-parallax holographic three-dimensional one-step printer light path structure. A system assembly comprises a coherent laser light source, a mechanical translational control shift system, an optical lens, a diffuse transmission plate, a holographic recording material, a shutter, a spatial light modulator (SLM) and the like. The structure is characterized in that the SLM modulates object light; the object light after modulation is uniformly irradiated on the diffuse transmission plate in front of a holographic plate; another beam of reference light is transmitted to a control position of a mechanical system which can move along an x axis and a y axis on a scanning lens focal plane via an optical fiber; after being emitted, the reference light is interfered with the object light on the holographic plate so as to complete one holographic pixel recording process; then, a computer translation system and the SLM are used to carry out control and a next holographic pixel is exposed till that all the pixels are exposed. Under the condition that imaging quality is guaranteed, the structure has the following advantages that 1 there is no distortion display in a 3D image; 2 a whole process is full-automatic and intelligent; 3 a finished product possesses a three-dimensional stereoscopic effect and is easy to carry and observe.

Description

technical field [0001] The invention relates to a system optical path design of a single-color full-parallax three-dimensional holographic one-step printer. Background technique [0002] A holographic stereo picture can record a realistic 3D scene like a traditional hologram. Although holographic 3D pictures have many advantages and functions such as three-dimensional and lifelike, their production and application are limited due to their complex synthesis methods, harsh production conditions, and expensive photographic equipment. Monochromatic full parallax holographic 3D one-step printing can generate high-quality 3D holograms through one-step printing of a set of 2D images. [0003] At present, there are only two ways to use a computer to make a hologram, a laser printer or an electron beam printer. Holographic laser printers focus a beam of light containing scene information into a small point to control and record holographic images, and the cost is relatively high. ...

AI Technical Summary

Problems solved by technology

Holographic laser printers focus a beam of light containing scene information into a small point to control and record holographic images, and the cost is relatively high

The image resolution (number of scan lines per mm) drawn by electron beam printers is 10 times that of the former, but even the images drawn are very small, and the cost is very expensive

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