US 10,095,009 B2 — Tetsuya Ori, Michio Cho
| 13 ELEMENTS / 10 GROUPS |
| DESIGN f = 51.53–223.44 mm |
| DESIGN F/4.63–6.92 |
| 2 ASPHERICAL SURFACES / 1 ELEMENT |
| 1 ED (INFERRED) |
Focus travel is not modeled. The patent focuses by moving G4 (L41) toward the object but tabulates infinity-focus zoom states only, so every gap is the same at both focus endpoints. The 1.1 m minimum focus distance is Fujifilm's production figure, kept as product metadata.
| Element | Type | Glass |
|---|---|---|
| L11 | Biconvex Positive | S-FSL5 (OHARA coordinate equivalent; supplier unresolved) |
| L12 | Negative Meniscus | S-TIM5 (OHARA coordinate equivalent; supplier unresolved) |
| L13 | Positive Meniscus | S-FSL5 (OHARA coordinate equivalent; supplier unresolved) |
| L21 | Biconcave Negative | S-NBH51 (OHARA coordinate equivalent; supplier unresolved) |
| L22 | Biconcave Negative | S-LAH51 (OHARA coordinate equivalent; supplier unresolved) |
| L23 | Positive Meniscus | S-NPH2 (OHARA coordinate equivalent; supplier unresolved) |
| L31 | Pos. Meniscus (2× Asph) | K-PG395-M (SUMITA K-PG395(M) molding-state coordinate equivalent; supplier unresolved) |
| L32 | Biconvex Positive | S-FPL51 (OHARA coordinate equivalent; supplier unresolved) |
| L33 | Negative Meniscus | S-TIH53 (OHARA coordinate equivalent; supplier unresolved) |
| L41 | Positive Meniscus | FCD505 (HOYA coordinate equivalent; supplier unresolved) |
| L51 | Positive Meniscus | E-FDS1 (HOYA coordinate equivalent; supplier unresolved) |
| L52 | Biconcave Negative | S-BSM15 (OHARA coordinate equivalent; supplier unresolved) |
| L61 | Positive Meniscus | S-TIM3 (OHARA coordinate equivalent; supplier unresolved) |