Apposition compound-eye image scanner by glass plate optics

Area of Science:

• Optics and Photonics
• Biomimetic Engineering
• Imaging Technology

Background:

• Traditional scanners face limitations in thickness and complexity.
• Apposition compound eyes in insects offer a model for compact imaging systems.
• Light shielding is a critical challenge in artificial compound eye design.

Purpose of the Study:

• To propose a novel design approach for a thin image scanner.
• To leverage the apposition compound eye concept for miniaturization.
• To address the challenge of light shielding in artificial compound eyes.

Main Methods:

• Designed a scanner using an array of imaging units, mimicking a compound eye.
• Implemented a simple plane structure with three aperture array layers on glass plates.
• Fabricated a prototype scanner module with 632 microlenses.

Main Results:

• Achieved a compact scanner module thickness of 6.8 mm.
• Obtained a resolution of 200 dots per inch (dpi).
• Demonstrated a field of view of 80 mm with no ghost images.

Conclusions:

• The proposed design effectively overcomes light shielding issues.
• The apposition compound eye concept enables the creation of ultra-thin image scanners.
• This technology holds potential for various compact imaging applications.