Goal. Helmet-mounted HUD. Low latency. Sunlight readable.
Constraints. Weight < 400 g total module. Front area < 80×50 mm. No tools for battery swap.
Targets.
- Latency < 20 ms end-to-end.
- 1,000+ nits; auto-dim.
- Field replaceable submodules.
Signals. GNSS, IMU, BLE. Phone tether optional. Heads-up cues only. No clutter.
Next. Optics stack, hinge v2 fatigue, cable strain mapping.