Methods of optimizing and evaluating geometrical lightguides with microstructure mirrors for augmented reality...

Area of Science:

• Optics and Photonics
• Display Technology
• Optical Engineering

Background:

• Waveguide technology is crucial for compact see-through near-eye displays.
• Geometrical lightguides are used as optical combiners, but their design and evaluation methods are underdeveloped.

Purpose of the Study:

• To develop novel methods for quantifying and evaluating optical performance and artifacts of geometrical lightguides.
• To propose new merit functions and a systematic optimization process for these lightguides.
• To demonstrate a lightweight, glasses-like near-eye display using the optimized lightguide.

Main Methods:

• Quantifying and evaluating optical performances and artifacts of geometrical lightguides based on microstructure mirror arrays.
• Developing new merit functions and a novel process for systematic optimization.
• Implementing and demonstrating a lightguide design example.

Main Results:

• Novel methods for evaluating geometrical lightguide performance were presented.
• New merit functions and an optimization process were proposed.
• A demonstrated lightguide design was utilized in a lightweight, glasses-like near-eye display.

Conclusions:

• The proposed methods enable systematic evaluation and optimization of geometrical lightguides.
• This research contributes to the development of advanced see-through near-eye display systems.
• The optimized lightguides facilitate the creation of more compact and efficient near-eye display devices.