US 2024/0302626 A1 — Takahiro Ode
| 14 ELEMENTS / 11 GROUPS |
| 35 mm f/1.4 (marketing) |
| f = 34.0 mm, F/1.46 (patent) |
| 2ω = 61.0° (patent) |
| 3 ASPHERICAL SURFACES / 2 ASPHERICAL ELEMENTS |
Patent Example 2 publishes only the infinity prescription. B2 and B4 move independently toward the object during close focusing; no numerical close-focus gaps are published, so no internal focus reconstruction is authored. The 0.28 m close-focus value is Canon production metadata.
| Element | Type | Glass |
|---|---|---|
| L1 | Negative Meniscus (1× Asph) | S-BAL42 (OHARA) coordinate proxy; patent vendor unresolved |
| L2 | Biconcave Negative | S-BSL7 (OHARA) coordinate proxy; patent vendor unresolved |
| L3 | Biconvex Positive | S-LAH96 (OHARA) coordinate proxy; patent vendor unresolved |
| L4 | Negative Meniscus | S-NBH56 (OHARA) coordinate proxy; patent vendor unresolved |
| L5 | Biconvex Positive | TAFD40 (HOYA) coordinate proxy; patent vendor unresolved |
| L6 | Positive Meniscus | S-FPM2 (OHARA) coordinate proxy; patent vendor unresolved |
| L7 | Negative Meniscus | NBFD29 (HOYA) coordinate proxy; patent vendor unresolved |
| L8 | Positive Meniscus | S-FPL51 (OHARA) coordinate proxy; patent vendor unresolved |
| L9 | Negative Meniscus | NBFD29 (HOYA) coordinate proxy; patent vendor unresolved |
| L10 | Biconvex Positive | S-FPL51 (OHARA) coordinate proxy; patent vendor unresolved |
| L11 | Biconvex Positive (2× Asph) | S-LAH65VS (OHARA) coordinate proxy; patent vendor unresolved |
| L12 | Biconvex Positive | TAFD55 (HOYA) coordinate proxy; patent vendor unresolved |
| L13 | Biconcave Negative | NBFD29 (HOYA) coordinate proxy; patent vendor unresolved |
| L14 | Negative Meniscus | S-NBM51 (OHARA) coordinate proxy; patent vendor unresolved |