Team
Elizabeth Matchavariani
Nathaniel Lazzara
Hao Wu
Customer
Stephan Merkel
Gwen Musial
Jochen Straub
Advisor
Doran Teverovsky
Vision
The purpose of our project is to design an optical system that can update the current optical design of a therapeutic laser delivery system using MEMS (micro-electromechanical system) mirrors in order to improve the scanning speed and workflow while maintaining the same packaging and form factor. The therapeutic laser, which is implemented in an ocular slit lamp, treats proliferative diabetic retinopathy. The aim of this project is to produce a design such that the system is more efficient in criteria of scanning speed, while maintaining performance expectations within the current packaging constraints.
Clinical Setup
Design
Aluminum Coated
Mirror Diameter: 4.2 mm
Mechanical Deflection Angle: ±5° for both axes
Drive Frequency: max 2050 Hz for both Axes
Operation Mode: support both linear and resonant
Results
50 μm Spot Size:
100 μm Spot Size:
200 μm Spot Size:
300 μm Spot Size:
Conclusion
We have successfully implement the MEMS mirror into the optical system. This allows us to direct the laser onto a 3mm*3mm field for 4 spot size, each of which corresponds to a specfic zoom configuration.
The future plan is to tolerance the MEMS scanning specifications.