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Radially arranged dihedral corner reflector array for wide viewing angle of floating image without virtual image
Optics Express
|January 31, 2019
Summary
A new radially arranged dihedral corner reflector array (DCRA) creates wide-angle, floating 3D images without virtual images. This innovative design expands viewing angles significantly compared to conventional DCRAs.
Area of Science:
- Optics and Photonics
- Display Technology
Background:
- Dihedral corner reflector arrays (DCRAs) are used in optical systems.
- Conventional DCRAs can produce virtual images and have limited viewing angles.
Purpose of the Study:
- To propose and evaluate a novel radially arranged DCRA.
- To achieve a floating, three-dimensional image with a wide viewing angle.
- To eliminate virtual image formation.
Main Methods:
- Designed a specific reflector array pattern for the radially arranged DCRA.
- Measured the reflection ratio of the proposed array.
- Evaluated the viewing angle of the displayed floating image.
Main Results:
- The radially arranged DCRA successfully displayed a floating image.
- The viewing angle was expanded from ±30° to ±90°.
- No virtual images were produced.
Conclusions:
- The radially arranged DCRA offers a significant improvement over conventional DCRAs.
- This technology enables wider viewing angles for 3D floating image displays.
- The design effectively prevents the formation of unwanted virtual images.
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