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Related Experiment Video

Updated: Apr 25, 2026

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Published on: January 14, 2020

Large size three-dimensional video by electronic holography using multiple spatial light modulators.

Hisayuki Sasaki¹, Kenji Yamamoto¹, Koki Wakunami¹

¹Universal Communication Research Institute, National Institute of Information and Communications Technology, 4-2-1 Nukui-kitamachi, Koganei, Tokyo 184-8795, Japan.

Scientific Reports

|August 23, 2014

Summary

This summary is machine-generated.

Researchers developed a novel optical system using multiple spatial light modulators (SLMs) to create larger, full-parallax, color holographic 3D images. This breakthrough overcomes previous size limitations in electronic holography displays.

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Area of Science:

Optics
Holography
Display Technology

Background:

Previous electronic holography methods had limitations in image scalability due to optical path length.
Scaling up holographic 3D images was constrained by the physical dimensions of the readout system.

Purpose of the Study:

To propose and demonstrate a new method for increasing the size of 3D images in electronic holography.
To overcome the scalability limits of existing holographic display technologies.

Main Methods:

Utilized multiple reflection-type spatial light modulators (SLMs) arranged in a 4x4 array.
Devised a space-saving image-readout optical system employing polarization beam splitters (PBSs), half-wave plates (HWPs), and polarizers.
Reduced the image-readout path length by half compared to previous methods.

Main Results:

Successfully produced larger color electronic holographic 3D images.
Achieved 20 frames per second (fps) video reproduction of full-parallax holographic 3D images.
Demonstrated a diagonal image size of 85 mm with a horizontal viewing-zone angle of 5.6 degrees.

Conclusions:

The new optical system effectively increases the size of holographic 3D images.
The space-saving design enables larger, high-quality holographic displays with improved scalability.
This advancement paves the way for more immersive and scalable electronic holographic applications.