John H.

Optical engineer with 20+ years taking lenses, LED illumination, and light guides from concept to production. You get a ray-traced, tolerance-checked design and a CAD handoff your molder or lens shop can quote. Background: former Director of R&D at an LED optics manufacturer and Manager of Optics at a medical device company. MS Electro-Optics, Tufts University. BEng Imaging Science, RIT. Tools: Zemax OpticStudio, FRED, TracePro, Photopia, Quadoa, OpTaLiX, LensHH, MEEP for wave optics, and custom Python scripts. What I deliver: • Optical and lens design: imaging, laser, and LED illumination systems, from concept through production-ready packages and CAD handoff • Illumination, freeform, and light guide optics designed for molding • Optomechanical interfaces, plus thermal and mechanical checks when the build requires them • Supporting skills: computer vision and image processing that fit the optical path, plus physics-informed ML and inverse design (surrogate models and ML-accelerated optimization under human review, not a black-box design bot) Stray light and ghost review (fixed fee): I check ghost paths, flare at the sensor, and stray light relative to incident light in FRED, TracePro, or Zemax OpticStudio, using the metric your market already uses: PST and PSRR for space, veiling glare and ghost paths for medical imaging, or ISO 18844 flare for camera modules. It starts with a 45-minute pre-audit call for $500, which is credited in full toward the review if you go ahead. You get native files plus a written report of assumptions, methods, results, and recommended next steps, ready for internal review or a vendor RFQ. How I work: fixed-fee preferred with clear milestones, 10 to 15 hours per week. NDA friendly. Message here with your goal and constraints, and I will reply with a short fit check and plan. Formlight Optics (founded 2003), Austin, Texas, serving clients worldwide.