JP 2024-167569 A — Tatsuya Moriyama
| 6 ELEMENTS / 4 GROUPS |
| PATENT f = 27.8000 mm |
| PATENT F/2.0441 |
| 2ω = 53.6546° |
| ALL-SPHERICAL |
| PUBLISHED UNIT FOCUS |
PUBLISHED unit focus: the complete optical assembly translates 4.1312 mm toward the object. D11 changes from 15.2788 mm at infinity to 19.41 mm at the published 0.24906 m object-plane-to-image-plane conjugate; all internal gaps remain fixed.
| Element | Type | Glass |
|---|---|---|
| L1f | Biconvex Positive | TAFD37A (HOYA) |
| L1r | Biconcave Negative | J-SF14 (HIKARI) |
| L2f | Biconcave Negative | FDS90 (HOYA) |
| L2r | Biconvex Positive | TAFD37A (HOYA) |
| L3 | Biconvex Positive | TAFD55 (HOYA) |
| L4 | Negative Meniscus | S-NBH5 (OHARA) |