Method for manufacturing a microLED based illumination structure comprising infrared micro light emitting devices
US12072487B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Jan 27, 2023 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Jan 27, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/84
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Eye-tracking systems and methods utilize transparent illumination structures having a plurality of IR μLEDs distributed with a predetermined pattern within the transparent viewing area of illumination structures. The μLEDs are small enough that they are not visible by a user during use of an HMD or other mixed-reality device, for example, such that they can be positioned within the line-of-sight of the user through the illumination structure and without visibly obscuring or interfering with the user's view of the mixed-reality environment by the mixed-reality device.
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