Augmented reality display system and augmented reality display device with improved light utilization efficiency
US12430858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2023 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Jan 24, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An augmented reality display system includes a body, an image source device configured to output image information, an optical waveguide device configured to receive the image information, and an optical fiber array image transmission bundle. The optical fiber array image transmission bundle includes a number of optical fibers. Each optical fiber includes an input end and an output end. Each input end is coupled with a first microlens protruding outward, and each output end is coupled with a second microlens protruding outward. The image information output by the image source device is coupled into the optical fiber array image transmission bundle through the first microlenses for total reflection, and then collimated by the second microlenses and emitted directly to the optical waveguide device. An augmented reality display device having the augmented reality display system is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.