KR 10-2127451 B1, Example 4 — Moon-Kyung Kim
| 7 ELEMENTS / 6 GROUPS |
| f ≈ 35.183 mm (MODELED) |
| F/2.899 (DESIGN) |
| 2ω ≈ 64.73° (PATENT INFINITY FIELD) |
| 3 ASPHERICAL SURFACES |
| PUBLISHED INNER FOCUS |
PUBLISHED inner focus: L34 + L44 (G24) translates toward image space while G14/G34 remain fixed. Table 12 D1/D2 states are preserved at infinity, MAG=-1/40, and the raw close row headed TL=0.3m. The close heading is internally inconsistent with D0+OAL≈0.3485m and Samyang's 0.35m sensor-to-object MFD; no spacing is reconstructed.
| Element | Type | Glass |
|---|---|---|
| L1 | Negative Meniscus | E-FD10 (HOYA; catalog ne 1.73432, vd 28.32 as printed; supplier unconfirmed) |
| L2 | Biconvex Positive (1× Asph) | Unmatched (printed coordinates; nearest e-line row is the 773496 class at 1.77621; no vendor row at either line) |
| L3 | Negative Meniscus | E-F2 (HOYA; catalog ne 1.62408, vd 36.30 as printed; supplier unconfirmed) |
| L4 | Positive Meniscus | E-FDS1 (HOYA; catalog ne 1.93323, vd 20.88 as printed; supplier unconfirmed) |
| L5 | Biconvex Positive | TAFD5F (HOYA; catalog ne 1.83945, vd 42.72 as printed; supplier unconfirmed) |
| L6 | Biconcave Negative | E-FD2 (HOYA; catalog ne 1.65222, vd 33.84 as printed; supplier unconfirmed) |
| L7 | Neg. Meniscus (2× Asph) | Unmatched (printed coordinates; nearest e-line row is the 689312 class at 1.69415; no vendor row at either line) |