WO 2023/153076 A1 Example 8 — Sony Group / Tasaki, Kumisawa, Juri
| 16 ELEMENTS / 13 GROUPS |
| f = 20.71–67.56 mm |
| F/4.12 (constant) |
| 2ω = 87.8°–35.5° |
| 8 ASPHERICAL SURFACES (4 ELEMENTS) |
Inner focus via G5 (L51+L52); translates image-ward for close focus. Two XD linear motors.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | FDS18 (HOYA) |
| L12 | Positive Meniscus | FCD515 (HOYA) |
| L21 | Negative Meniscus | S-LAH66 (OHARA) |
| L22 | Neg. Meniscus (2× Asph) | S-LAH89 (OHARA) |
| L23 | Biconvex Positive | S-NBH56 (OHARA) |
| L24 | Negative Meniscus | FCD515 (HOYA) |
| L31 | Pos. Meniscus (2× Asph) | 694532 - mold-optimized lanthanum crown (S-LAL13 / M-LAC130 code match) |
| L41 | Negative Meniscus | S-LAH98 (OHARA) |
| L42 | Biconvex Positive | S-FPL51 (OHARA) |
| L43 | Positive Meniscus | S-TIM5 (OHARA) |
| L44 | Negative Meniscus | NBFD25 (HOYA, 855252) |
| L45 | Biconvex Positive (2× Asph) | S-FPL51 (OHARA) |
| L51 | Positive Meniscus | FDS18 (HOYA) |
| L52 | Biconcave Negative (2× Asph) | Near S-LAH66 (770/494 variant, Δnd = 0.0025) |
| L61 | Biconvex Positive | Fluorophosphate crown class (593/670) |
| L62 | Negative Meniscus | Dense flint class (720/347) |
Detailed analysis available in the interactive viewer above.