Eyebox uniformity optimization over the full field of view for optical waveguide displays based on linked list...

Area of Science:

• Optics
• Display Technology
• Optical Engineering

Background:

• Eyebox uniformity is critical for optical waveguide display performance.
• Current design methods lack standardization for achieving full field-of-view (FOV) eyebox uniformity.

Purpose of the Study:

• To propose a novel method for optimizing eyebox uniformity using linked list processing.
• To develop a standard design approach for enhanced optical waveguide display performance.

Main Methods:

• Linked list processing for efficient light trajectory recording and numerical diffraction efficiency calculation.
• Rigorous coupled-wave analysis (RCWA) and the simplex method to determine coupler structure.
• LightTools modeling to simulate and verify illuminance uniformity.

Main Results:

• The proposed linked list method successfully optimized eyebox uniformity for an L-shaped diffractive optical waveguide.
• Achieved 0.9 illuminance uniformity at the central viewing angle within a 15°× 15° FOV.
• Demonstrated an overall eyebox uniformity of 0.617, validating the method's feasibility.

Conclusions:

• The linked list processing method offers a viable solution for achieving superior eyebox uniformity in optical waveguide displays.
• This technique provides a standardized design approach, advancing the performance metrics of display technology.
• Further research can explore broader applications of this method in advanced optical systems.