Title: Lead Optical & Android Hardware Engineer: Wearable 15cm Holographic Smartphone (Turn-Key Project)

Project Goal:
I am building a high-performance, wrist-mounted smartphone featuring a 15cm floating, interactive aerial display. I require a lead engineer to deliver a 100% functional, turn-key prototype that operates like a modern flagship smartphone, fully compliant with international safety and regulatory standards.
​Technical Requirements:
​Display Engine: Flat-top design. Use Micro-mirror Array Plate (MMAP/DCRA) + Folded Optics (Z or U-path) to project a high-definition image exactly 15cm into the air.
​Smartphone Architecture: ARM-based high-end SoC, 8GB RAM, 128GB Storage, Android AOSP.
​Connectivity: 5G/LTE module with eSIM support, Wi-Fi 6, Bluetooth 5.3, GPS/GLONASS.
​Hardware/Sensors: * Touch: LiDAR/ToF sensor calibrated for 15cm spatial interaction (zero-latency).
​Imaging: High-resolution front, rear, and macro camera modules + LED Flash.
​Audio: Integrated high-fidelity microphone and micro-speaker system.
​Sensors: Accelerometer, Gyroscope, Magnetometer, Ambient Light Sensor, Barometer.
​Enclosure: Stacked PCB design, professional RF shielding, max 4cm chassis thickness. High-quality industrial design.
​Safety, Regulatory, and Compliance Requirements:
​Eye Safety: The optical system must be designed to ensure zero strain and zero harm to the human eye, following international eye-safety standards (ISO/IEC).
​Global Regulatory Compliance: The design must meet EU CE marking requirements (including RED, EMC, and RoHS directives) and international safety standards to ensure global marketability.
​Software Development Requirements:
​Full Android AOSP Integration: Porting and optimization of Android for the specific ARM hardware.
​Custom Driver Development: Creation of all necessary Linux kernel drivers for LiDAR/ToF sensors, camera modules, and the aerial optical interface.
​Spatial Calibration Software: Custom software layer to map the 15cm aerial floating plane to the coordinate system of the LiDAR/ToF sensor for seamless touch interaction.
​Mandatory Deliverables (Full IP Transfer):
The project is not finished until I receive:
​PCB Files: All schematic, layout, and manufacturing source files (Altium/Eagle/Cadence/Gerbers).
​CAD Files: All 3D mechanical and optical chassis/mount designs.
​Software/Firmware: Full Android AOSP source code, all custom drivers, and calibration software (compilable source code).
​Documentation: Complete Bill of Materials (BOM), supplier links, full assembly instructions, and technical documentation for CE/EU certification compliance.
​Roadmap:
​Milestone 1: Video proof of 15cm floating image on a flat-top device. (No video, no payment).
​Milestone 2: Full PCB design and successful Android AOSP boot.
​Milestone 3: LiDAR/ToF spatial touch integration and driver/calibration software.
​Milestone 4: System assembly and final enclosure (compliant with safety standards).
​Milestone 5: Handover of all source files, IP, safety/regulatory documentation, and the finished working unit.
​Application:
To be considered, you must:
​Confirm your experience with MMAP/DCRA optical technology.
​Explain your Z or U-path folding technique to achieve a 15cm focal distance within a 4cm chassis.
​Confirm you agree to the full handover of all source files (PCB, CAD, Software, BOM) and the delivery of all required safety/regulatory documentation.