LED digital holographic screen

The holographic technology platform, as a technology for recording and reproducing three-dimensional information of objects, plays a crucial role in modern technology and research. Among them, digital holography and computational holography are the two major branches of holographic technology, each with unique technical characteristics and application fields. This article will delve into the principles, characteristics, and applications of these two holographic technologies in order to provide readers with a comprehensive and in-depth understanding.

Digital Holographic Technology Platform

Digital holography technology, as the name suggests, is the use of photoelectric sensing devices (such as CCD or CMOS) to record holograms, and through computer simulation of optical diffraction processes to achieve holographic reconstruction and processing of the recorded object. This technology was first proposed by J. W. Goodman and Lawrence in the late 1960s, inheriting the characteristics of traditional optical holography and developing many advantages on this basis.

The core of the digital holographic technology platform lies in interferometric recording and diffraction reconstruction. In the interference recording stage, use photoelectric sensing devices to record the interference fringes between the reference light wave and the object light wave; In the diffraction reconstruction stage, no optical system is required, but the diffraction process is simulated using a computer to digitally reconstruct the original object.

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