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Light Acquisition

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Compact multi-projection 3D display system with light-guide projection.

Chang-Kun Lee, Soon-gi Park, Seokil Moon

|November 13, 2015

Summary

This summary is machine-generated.

We developed a compact multi-view 3D display using an optical light-guide. This system minimizes projection size and compensates for image distortion, enabling a ten-view 3D display.

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Area of Science:

Optoelectronics
Display Technology
Optical Engineering

Background:

Multi-view 3D displays require complex projection systems.
Image distortion is a significant challenge in light-guide-based displays.
Minimizing the physical footprint of 3D display systems is desirable.

Purpose of the Study:

To propose a compact multi-projection based multi-view 3D display system.
To analyze and compensate for image distortion within an optical light-guide.
To implement a minimized structure for a ten-view 3D display.

Main Methods:

Utilized an optical light-guide with multiple total internal reflections to reduce projection distance.
Developed an optically equivalent model of the light-guide for distortion analysis.
Applied a two-step image rectification process for pre-distortion compensation.
Integrated a vertical diffuser and Fresnel lens to generate viewing zones.

Main Results:

Effectively reduced the horizontal projection distance to the light-guide thickness.
Successfully compensated for image distortion using the equivalent model and rectification.
Demonstrated distortion-compensated view images on the light-guide exit surface.
Implemented a ten-view 3D display with a significantly minimized structure.

Conclusions:

The proposed light-guide-based system enables compact multi-view 3D displays.
The optical modeling and image rectification effectively address distortion issues.
Experimental verification confirms the feasibility and performance of the minimized 3D display system.