https://www.eaton.engineering/hobbies-projects daily 0.75 2026-01-08 https://www.eaton.engineering/hobbies-projects/raspilens monthly 0.5 2024-08-30 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/6cb9a134-4faf-4b59-b88d-bfa61a7b74dd/4563-datasheet-1.png Hobbies/Projects - Zemax Modeling and Simulation - Specs The 6mm wide-angle lens for the Raspberry Pi camera is sold on Adafruit with the spec sheet shown in the figure on the right (linked to the adafruit product page). Notably this lens has a focal length of 6mm, an F/# of 1.2, a field angle of 63º, a back focal length of 7.53mm, an image format of ½’, and a rough overall length of 34 mm. Approach Being a commercial lens it would make sense that this lens follows a standard lens form. With this logic, several traditional lens forms were chosen. Cooke triplet, Tessar, Ernostar, Sonnar, and Double Gauss lens forms were initially attempted [2]. All of those lens forms failed to adequately account for the high 31.5º half-angle field of view combined with the necessary 5mm entrance pupil diameter dictated by the F/# of 1.2 and the focal length of 6mm. In order to confirm that the issue fell on the lens forms, scaling of Zemax templates for the Cooke triplet and the double Gauss was attempted. These attempts however lead to numerous total internal reflection errors and ray aiming failures. https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/df7c569d-c17e-4906-86bf-5e56e1f154a1/Phys+326+Final+Project+%281%29.jpg Hobbies/Projects - Zemax Modeling and Simulation - In response to repeated failure with easily accessible traditional lens forms. A copy of the lens from Adafruit was opened and the first and second optical elements were observed as shown in Figure 2. The first element is clearly a cemented doublet with a planar first surface, difficult to discern but likely a positive radius second surface, and a positive third surface with a small radius. The total element is roughly 3 mm thick. The second element is a biconvex singlet. It is roughly 1 mm thick. Both of these lenses have some kind of coating that is presumably an anti-reflective coating. The assumption was made that the lens form is roughly symmetrical around the stop and thus was modeled as doublet-singlet-stop-singlet-doublet as shown in Figure 3. This design was improved until the focal length and F/# were close to their proper values and then the final surface was constrained by the image space F/# in order to constrain the focal length when combined with the entrance pupil diameter. In order to reduce pupil aberration paraxial ray aiming was used. The back focal length of 7.53 mm was held fixed in order to ensure similarity with the purchased lens. All surfaces, thicknesses, and glasses were made variable except for the initial planar surface and the final aperture-constrained surface. https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/c6b606bf-b6e5-4ddc-acd2-2f7f1163f4b4/Screenshot+2024-07-13+211644.jpg Hobbies/Projects - Zemax Modeling and Simulation - Make it stand out Figure 3: Rough approximation of initial lens form. https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/32ea1fe2-e7c4-4b3e-9077-a6b7707fa9fd/Screenshot+2024-07-13+211909.jpg Hobbies/Projects - Zemax Modeling and Simulation - Make it stand out Figure 4: Optimized lens and lens data https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720931797171-7QB8RJ3MZXUFZ0IRE98P/Phys%2B326%2BFinal%2BProject%2B%25283%2529.jpg Hobbies/Projects - Zemax Modeling and Simulation https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720931838334-I3JJCC4RYD421HHBWPMG/Phys%2B326%2BFinal%2BProject%2B%25284%2529.jpg Hobbies/Projects - Zemax Modeling and Simulation https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720931961691-JUZC7TW7WQ7TWXTS2DRT/Phys%2B326%2BFinal%2BProject%2B%25285%2529.jpg Hobbies/Projects - Zemax Modeling and Simulation https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720932117382-87XKNZZLCL3PXDV0LDSU/Phys%252B326%252BFinal%252BProject%252B%2525286%252529.jpg Hobbies/Projects - Zemax Modeling and Simulation https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720931990911-K0J13FSBF6TKG8M2GBZC/Phys+326+Final+Project+%287%29.png Hobbies/Projects - Zemax Modeling and Simulation https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1720932032563-8ET1UXES0Y3CARKIIJOT/Phys%2B326%2BFinal%2BProject%2B%25288%2529.jpg Hobbies/Projects - Zemax Modeling and Simulation https://www.eaton.engineering/hobbies-projects/blog-post-title-one-hcpaa monthly 0.5 2025-09-17 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758124043333-3LBEKNT4G38CQ34W9EAL/000055830036.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123735282-3YB6ST2JRJ16Q9RB3EX1/000055850026.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123743909-CACLVE2RJ589TN086698/000055820017.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758124090302-NZ3AHU6KZAHFQQK55H2S/000055830021.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123752019-ED38H4TGQF4BN9B3NUS9/000055820036.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123919222-DDTVG2HX86DVPRHAVILD/000055820031.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721787840657-T1BTS0USIE53SAL7R9PE/image12.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721787770711-FDD9ESU1PS863OVLP3UH/image13.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721787772818-QZWG7Z0YHVNOH4LHB39X/image14.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721787775219-9HHJD3FPK1MWIYVV945D/image15.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758124645572-X791AI3DR35E4ZOUFP8B/000055880038.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788105613-E43V605LWHFFYWKO8NND/image4.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788112840-6UY1K7ZDHYNPNZWQEHB6/image7.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788119191-CCXBVL5GX6PPW64NTKIA/image9.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788194568-OOWGO1CA889T3YK9Q248/image5.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788260586-T2X8VRT382CZG9VTZIQ5/image10.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788269124-4VPHYE3IFJ2JYMNFKUPA/image18.jpg Hobbies/Projects - Photography https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721788264281-0SOJ7GXBCVUQ7OPJXI67/image17.jpg Hobbies/Projects - Photography https://www.eaton.engineering/hobbies-projects/fpv-flying monthly 0.5 2024-08-30 https://www.eaton.engineering/hobbies-projects/blog-post-title-two-n6yra monthly 0.5 2025-11-01 https://www.eaton.engineering/hobbies-projects/blog-post-title-three-55bne monthly 0.5 2026-01-08 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721789648165-AYDQWO1B6R4TEN7TAL2J/climbing.jpg Hobbies/Projects - Outdoor Activities!!! https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123462992-MFOMNGSHYT5RYT7LLAQR/crossingWater.jpg Hobbies/Projects - Outdoor Activities!!! https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1721789725693-PHGM0UZ9KJ56VOCKYF5S/climbingohio.jpg Hobbies/Projects - Outdoor Activities!!! https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1724991859663-6E2U4XW1XQWCDVWQW48E/backpacking1.jpg Hobbies/Projects - Outdoor Activities!!! https://www.eaton.engineering/work-awards daily 0.75 2026-02-16 https://www.eaton.engineering/work-awards/cwru-dept-materials-science-and-engineering monthly 0.5 2026-02-16 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1745351439408-3F4SBZV9PRXFQJ4MKXH6/AF1xigdX_400x400%2B%25281%2529.jpg Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1762034810692-B7KBSZ5SXUL8VB41HNFK/unnamed.png Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1762034861985-F7U53X6LRIH5YPY8B2KI/XRDAnalysisPlot.png Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758121173746-SAELILIG9E83952S7PFQ/output.png Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758121085053-QE4ADI8V0RYAK0BLEVTY/Exfoliation+Process+Flow_page-0001.jpg Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723261054981-HLH8KWX12FOOD1AF6SM7/ionExchange2.jpg Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723261059495-9MM58LLFUXCAGZC6IK52/ionExchange3.jpg Work History and Awards - CWRU DMSE https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723261050201-MOFVDCWYTHW50N4JFNTD/ionExchange1.jpg Work History and Awards - CWRU DMSE https://www.eaton.engineering/work-awards/intel monthly 0.5 2024-08-30 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/639a7da1-97bb-435d-8b7d-041566ef1dc1/me+at+intel.jpg Work History and Awards - Intel (Ocotillo) - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.eaton.engineering/work-awards/kaiseraluminum monthly 0.5 2025-11-01 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345153849-FVAL9A5TDCTGCP1XJ57C/otherKaiserThing.jpg Work History and Awards - Kaiser Aluminum (Trentwood) https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345158440-ZD4MBHMM5EO199WG33I6/WaitTheresMoreKaiserThings.jpg Work History and Awards - Kaiser Aluminum (Trentwood) https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345160584-S4SY47V3NC4W5I3X9UGX/kaiserthing.jpg Work History and Awards - Kaiser Aluminum (Trentwood) https://www.eaton.engineering/work-awards/continuouscomposites monthly 0.5 2025-11-01 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345621843-L7AXZISDCVCNR2Q90IRP/cci%2Bmicroscope.jpg Work History and Awards - Continuous Composites https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345919947-EJR5TEYVDCZKZUDYDVXA/cci%2Bcarbon%2Bfiber%2Bsamples.jpg Work History and Awards - Continuous Composites https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345508133-USS4U91F5YPJ61PVQFXZ/cci+brick+of+cf.jpg Work History and Awards - Continuous Composites https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723345583772-RI9GB21IF3BFR8944HTW/cci%2Bpart.jpg Work History and Awards - Continuous Composites https://www.eaton.engineering/work-awards/blog-post-title-four-wzs2r monthly 0.5 2024-08-30 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723346508443-0TDW11LC5N3X7TTG7YSN/waiting+for+a+bus.jpg Work History and Awards - CWRU Motorsports https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723346657833-HIWY6CZBOP0CO1W4Y3RS/businessPREZZZ.jpg Work History and Awards - CWRU Motorsports https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1723346532740-3BYEV4XPBDA1JGGYW2AF/WhatsApp+Image+2023-02-12+at+16.33.50.jpg Work History and Awards - CWRU Motorsports https://www.eaton.engineering/work-awards/awards monthly 0.5 2025-11-01 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/e943b07d-61f5-4547-b506-fd0d6977248c/HoffmanScholarshipPhoto+%281%29.jpg Work History and Awards - Awards - American Ceramics Society (ACerS) Lewis C. Hoffmann Scholarship Ryan Eaton, a fourth-year undergraduate majoring in materials science and engineering at Case Western Reserve University, has been named the recipient of the Lewis C. Hoffman Scholarship, presented by the Electronics Division of the American Ceramic Society (ACerS). The award was presented on September 29, 2025, during the Materials Science and Technology (MS&T) 2025 technical meeting and exhibition in Columbus, Ohio—one of the largest international gatherings in the field of materials science. The Lewis C. Hoffman Scholarship recognizes an outstanding junior or senior student who demonstrates excellence in academics, leadership, and research. Eaton was selected based on his strong academic performance, extensive extracurricular involvement, and a compelling essay on the role of polymer-derived ceramics in advancing additive manufacturing for electronics. https://www.eaton.engineering/home daily 1.0 2026-03-05 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/94d7bbb2-953b-4f3f-87f5-cc45da1bce5c/image.jpg https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/983b348b-1336-4f38-9ee6-358a1fe39a0b/cci+microscope.jpg https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/1758123462992-MFOMNGSHYT5RYT7LLAQR/crossingWater.jpg https://www.eaton.engineering/contact-resume daily 0.75 2026-02-16 https://www.eaton.engineering/guess-the-angle daily 0.75 2026-03-05 https://images.squarespace-cdn.com/content/v1/668dfd8916e9a8677e2d22d2/fc065ae8-34cb-4180-bf58-b75a4943fba2/guesses.png