US 2025/0251576 A1 Example 1 — Canon / Tomohiro Ino
| 14 elements / 11 groups (15 material entries incl. resin cap) |
| f = 48.50 mm patent / 50 mm marketed |
| F/1.46 design / f/1.4 marketed |
| 2ω = 48.08° patent diagonal |
| 3 aspherical surfaces on 2 counted aspherical elements |
Floating inner focus: L2 moves objectward by 2.30 mm and L4/Lr1 by 4.40 mm from infinity to 0.40 m.
| Element | Type | Glass |
|---|---|---|
| E1 | Positive Meniscus | E-FDS1 / M-FDS1 class (HOYA, 923-209) |
| E2 | Aspherical Resin Layer | UV-cured optical resin (patent-listed nd/vd) |
| E3 | Negative Meniscus | S-NBH5 (OHARA) / N-KZFS5 class (654-397) |
| E4 | Biconcave Negative | NBFD29 (HOYA, 770-297) |
| E5 | Biconvex Positive | S-LAH96 (OHARA, 764-485) |
| E6 | Biconvex Positive | TAFD35 (HOYA, 911-353) |
| E7 | Positive Meniscus | TAFD37A (HOYA, 900-374) |
| E8 | Plano-Concave Negative | NBFD29 (HOYA, 770-297) |
| E9 | Positive Meniscus | S-FPM2 (OHARA, 595-677) |
| E10 | Negative Meniscus | NBFD32 (HOYA, 730-322) |
| E11 | Biconvex Positive | S-FPL51 / FCD1 class (OHARA/HOYA, 497-816) |
| E12 | Biconvex Positive (2× Asph) | S-LAH65VS (OHARA, 804-465; Low-Tg / PGM class) |
| E13 | Plano-Convex Positive | S-LAH99 (OHARA, 001-291) |
| E14 | Biconcave Negative | S-TIL25 (OHARA, 581-407) |
| E15 | Negative Meniscus | S-TIH10 (OHARA, 728-285) |
Detailed analysis available in the interactive viewer above.