Lens, hologram projection production system and method thereof

Abstract

The invention discloses a lens, a hologram projection production system and a method thereof. The lens comprises an incident plane of light and an outgoing surface. The incident plane is a curved surface. The outgoing surface is formed by a plurality of free surfaces. Different image blocks formed on the incident plane are successively output from the corresponding free surfaces in a one-to-one manner. The image blocks, which are output from the free surfaces, are successively overlapped in a same area. The hologram projection production system comprises a laser source, a reference light transmission unit, an object light transmission unit, a spatial light modulator, a holographic dry plate and the lens. The lens is located between the spatial light modulator and the holographic dry plate. The reference light of the laser source arrives at a back side of the holographic dry plate through the reference light transmission unit. The object light arrives at the spatial light modulator through the object light transmission unit. After that, object light carries image information and arrives at a right side of the holographic dry plate after passing through the lens. The object light and the reference light generate interference on the right side of the holographic dry plate. According to the prior art, a single pixel is used to carry out exposure shooting. Compared to the prior art, by using the lens, the system and the method of the invention, efficiency can be improved and a complexity of a structure can be reduced too.

Description

technical field [0001] The invention relates to the field of holographic technology, in particular to a lens and a hologram projection production system and method. Background technique [0002] The use of holography to realize 3D stereoscopic display has always been a research hotspot. Synthetic holography technology uses different two-dimensional parallax images of three-dimensional objects to realize stereoscopic display. It not only uses the idea of ​​binocular parallax to synthesize stereoscopic effect, but also utilizes the characteristics of optical holography, which can realize the realization of any stereoscopic scene or dynamic process. Stereoscopic display. Because it can obtain large-area holograms with true color, full parallax, and large viewing angles, it has broad market prospects in the fields of advertising and display. At present, many scientific research institutions and companies abroad are committed to the commercial production and production of synthe...

AI Technical Summary

Problems solved by technology

The key part of the entire optical system is the beam projection system of the object light and reference light. The object light projection system needs to realize the compression and convergence of the object light image, and the ideal effect cannot be obtained by using ordinary lenses or existing optical components.

In the existing schemes, most of them are based on a single pixel point for exposure shooting, which is realized by using complex DOE elements or its combined optical system, which is not only inefficient, but also complex in structure

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