WO 2024/062958 A1 — Hisayuki Yamanaka, Atsushi Takahashi, Toshinori Take, Keigo Koida
| 25 ELEMENTS / 17 GROUPS |
| 180-600mm (DESIGN 185.0086-582.1636mm) |
| f/5.6-6.3 (DESIGN f/5.8014-6.5296) |
| 6 ED ELEMENTS / 1 ASPHERICAL ELEMENT |
| PUBLISHED 2.4 m FOCUS STATE |
PUBLISHED: G5 (L20) moves imageward to the complete 2.4 m patent state at each zoom position; the marketed 1.3 m wide-end MFD is not reconstructed.
| Element | Type | Glass |
|---|---|---|
| L1 | Biconvex Positive | FC5 (HOYA) |
| L2 | Biconvex Positive | FCD1 / S-FPL51 class (HOYA/OHARA) |
| L3 | Biconcave Negative | TAFD5F/TAFD5G class (HOYA) |
| L4 | Biconvex Positive | FCD1 / S-FPL51 class (HOYA/OHARA) |
| L5 | Biconvex Positive | NBFD15 class (HOYA) |
| L6 | Biconcave Negative | FC5 (HOYA) |
| L7 | Biconcave Negative | TAF3D (HOYA) |
| L8 | Biconcave Negative | TAFD5F/TAFD5G class (HOYA) |
| L9 | Biconvex Positive | FD60 class (HOYA) |
| L10 | Positive Meniscus | FCD1 / S-FPL51 class (HOYA/OHARA) |
| L11 | Biconvex Positive | FCD1 / S-FPL51 class (HOYA/OHARA) |
| L12 | Biconcave Negative | NBFD10 (HOYA) |
| L13 | Biconvex Positive | 606437 — barium-flint class |
| L14 | Negative Meniscus | TAFD40 class (HOYA) |
| L15 | Biconvex Positive | E-C3 (HOYA) |
| L16 | Biconcave Negative | TAFD5F/TAFD5G class (HOYA) |
| L17 | Positive Meniscus | NBFD15 class (HOYA) |
| L18 | Biconcave Negative | S-BAM12 class (OHARA) |
| L19 | Biconvex Positive | FD60 class (HOYA) |
| L20 | Negative Meniscus | FCD515/FCD505 class (HOYA) |
| L21 | Biconcave Negative | E-FDS1 class (HOYA) |
| L22 | Biconvex Positive | E-FD8 class (HOYA) |
| L23 | Biconvex Positive | FF8 (HOYA) |
| L24 | Biconcave Negative | FCD515/FCD505 class (HOYA) |
| L25r | Aspherical Resin Layer | Unmatched (optical resin layer) |
| L25g | Negative Meniscus Substrate | TAFD32 (HOYA) |