Combiner alignment detector
US11920922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2021 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Jan 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0198
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for detecting an alignment of a relay lens assembly and a combiner of a head-up display is disclosed. The system includes an illuminated reticle spatially coupled to the relay lens assembly, an optical sensor spatially coupled to the combiner, and a control module configured to receive an input from the optical sensor, determine a position of the combiner relative to the relay lens assembly based on the received input; and generate an output based on a determined position of the combiner relative to the relay lens assembly. In another system, the illuminated reticle is spatially coupled to the combiner, and the optical sensor is spatially coupled to the relay lens assembly. The system may also participate in a feedback loop with the head-up display to reduce jitter in the head-up display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.