Making Augmented Reality a REALITY!!AR Glasses hardware design - display optical stability and alignment

- AR Hardware platform development to build digital twins and power the Metaverse ambition.- Design and build 3D mapping and reconstruction devices with focus on cameras and imaging systems hardware.

 Vision Pro system PD @VPGOptical Module

Worked on hardware design, integration and validation on propulsion/battery team for Amazon package-delivery drone, which aims to safely get packages to customers within 30 minutes or less ✈️

Office of the CTOConfidential Project

Sponsored by SAAB to investigate Disaster Relief: Collaborate with international cross-functional teams to design and build a modular shelter that has a durability of 3-5 years and can be drone delivered in difficult to reach terrain.

- Collaborated with manufacturing engineers to create forging drawings of combustion chamber components in AutoCAD- Coordinated with global suppliers on manufacturing quality and reviewed Approval Forms of Materials Substitution, Approval Plan of Forging & Casting provided by vendors- Compiled Aerospace Material Specifications targeted for AVIC commercial aircraft engine use

- Converted a production go-kart to low-level autonomy as a proof of concept with intent to compete in the 2018 Formula Student Driverless Competition- Designed, manufactured and validated drive-by-wire/brake-by-wire speed control system through electric motor and a PID controller, and a stepper driven steering system that can be decoupled to operate manually - Developed and validated a spring loaded emergency brake that could be triggered remotely to lock the existing hydraulic brake- Performed in-depth FMEA/risk analysis to categorize the risk and modes of failures in each of areasPlease check the poster below for details.

Background: Modern optical microscopy techniques provide opportunities to perform high-resolution optical imaging "deep" in biological tissue. As a candidate technology, electromagnetic actuation permits relatively simple fabrication and wireless operation- Produced prototype actuator via frbrication from electroplated permalloy (Fe-Ni), on sillicon chip/frame- Characterized device parameters and performed 2nd-order nonlinear dynamic modeling and simulation in MATLAB- Applied Feedforward & Feedback Control in Simulink on the actuator for sinusoidal trajectory generation to extend its range of motion (from less than 10 µm to over 100 µm) - Built op-amp circuit and conducted LabVIEW programming to experimentally test actuator responses using input-linearized excitation, which shows good alignment with simulated results- Achieved targeted generation of vertical translation despite inherent tendency towards rotational motion through effective frequency selection and input linearization- Paper “Design, Fabrication, and Dynamics of an Electromagnetic Vertical Microactuator for Endomicroscopy” as first author accepted for Oral Presentation at the 2017 IEEE International Conference on Advanced Intelligent Mechatronics, Munich, Germany

- Graded homework set and computer-aided assignment for course ME240 (Dynamics & Vibrations) in Mechanical Engineering department- Summarized the statical data and common mistakes in each homework to assistant professor in course teaching

- Participated in CAD design of spacecraft frame and solar panel deployment mechanism- Integrated with multidisciplinary sub teams to optimize mechanical design, including solar panel and retroreflector placement- Evaluated and selected batteries and deployable solar panels among outsourced suppliers- Developed and implemented active and passive control, allowing for CubeSat tracking throughout mission lifetime- Conducted interviews with faculty and students on campus for making videotapes as CubeSat payload

- Prepared experimental specimen for Scanning Transmission Electron Microscopy (STEM) use- Worked with STEM for imaging to observe nanostructure of MoS2, Pt, Pt/NbOx/C, Pt/C etc - Performed useful STEM techniques, namely Electron energy loss spectroscopy (EELS) and Tomography

- Designed a mechanism based on Unigraphics NX and manufactured the prototype of the designed concept using machining techniques - Integrated modules including Arduino microcontroller, line tracking sensor, step/servo motors and batteries- Implemented Bluetooth wireless communication by programming an Android App to control the catapult that can aim, shoot and reload automatically- Presented with honors at Summer 2015 Design Expo of UM-SJTU Joint Institute

- Led high-quality recitation sessions and held weekly office hours for individual tutoring, helping students better understand the assignments and improve writing skills- Helped faculty supervisor with exam content preparation and grading work including essays and presentations