US 10,690,896 B2 — First Example / Nikon
| 12 elements / 9 groups (manufacturer count) |
| 13 modeled optical material bodies |
| f = 18.50–53.40 mm patent design |
| FNO = 3.64–5.88 patent design |
| 2 aspherical surfaces |
| Inner focus; G2 VR group |
Inner focus by G3/L31. Close-focus values are paraxially inferred for 0.25 m MFD by moving L31 object-side within the fixed G2–G4 pocket.
| Element | Type | Glass |
|---|---|---|
| L11g | Negative Meniscus | J-SK5 (HIKARI); S-BAL35 / P-SK58A class, 589/612 |
| L11r | Hybrid Resin Aspherical Layer | UV-curable resin (patent material, no catalog match) |
| L12 | Negative Meniscus | J-SK15 (HIKARI); N-SK15 / BACD15 / S-BSM15 class, 623/581 |
| L13 | Positive Meniscus | J-SF03 (HIKARI); S-TIH53 / dense flint class, 847/238 |
| L21 | Biconvex Positive | J-FK5 (HIKARI); S-FSL5 / N-FK5 class, 487/703 |
| L31 | Negative Meniscus | J-LASF016 (HIKARI); S-LAH66 / N-LAF34 / TAF1 class, 773/496 |
| L41 | Biconvex Positive | J-FK5 (HIKARI); S-FSL5 / N-FK5 class, 487/703 |
| L42 | Biconvex Positive | J-FK5 (HIKARI); S-FSL5 / N-FK5 class, 487/703 |
| L43 | Negative Meniscus | J-SF03 (HIKARI); S-TIH53 / dense flint class, 847/238 |
| L51 | Positive Meniscus | J-SF4 (HIKARI); S-TIH4 / N-SF4 / E-FD4 class, 755/276 |
| L52 | Biconcave Negative | J-BASF7 (HIKARI); S-BAH27 / BAFD7 class, 702/410 |
| L61 | Positive Meniscus (1× Asph) | Optical plastic (patent material, no catalog match) |
| L62 | Positive Meniscus | J-BK7A (HIKARI); S-BSL7 / N-BK7 class, 517/641 |
Detailed analysis available in the interactive viewer above.