Comparison of User Performance and Experience Between Light Field and Conventional AR Glasses

Area of Science:

• Human-Computer Interaction
• Optics and Vision Science
• Augmented Reality Technology

Background:

• Conventional augmented reality (AR) glasses may cause visual discomfort.
• Limited research exists comparing user performance between light field AR and conventional AR glasses.
• Understanding user performance and experience is crucial for AR technology advancement.

Purpose of the Study:

• To systematically quantify and compare user performance and experience between light field AR glasses and conventional AR glasses.
• To evaluate performance at different viewing distances (30 cm and 60 cm) and modes (virtual reality and AR).
• To assess the impact of visual comfort on user interaction.

Main Methods:

• A systematic method using a serial visual search task was employed.
• The experiment controlled for confounding factors to isolate performance differences.
• User performance and feedback were collected across two viewing distances and two operational modes.

Main Results:

• Light field AR glasses demonstrated significantly faster reaction times and higher accuracy at 30 cm in AR mode compared to conventional AR glasses.
• Participants reported better virtual-real integration with light field AR glasses.
• Conventional AR glasses showed better search efficiency at 60 cm in both AR and VR modes, but with more negative participant feedback.

Conclusions:

• Light field AR glasses provide enhanced user performance and experience, particularly in AR mode at closer viewing distances.
• User experience with light field AR glasses remained consistent across varying viewing distances.
• The evaluation method effectively quantified the impact of visual comfort on AR system performance.