US 2018/0210178 A1 Example 1 — FUJIFILM / Saito & Miyagishima
| Patent Example 1: 14 elements / 11 groups |
| Production lens: 15 elements / 12 groups |
| f = 23.69 mm patent; 23 mm marketed |
| F4.0 |
| 2ω = 101.6° patent; 99.9° marketed |
| 2 aspherical elements / 4 aspherical surfaces |
| 1 Super ED + 3 ED-class elements |
Inner focus: positive Group G2 behind the aperture stop moves object-ward from infinity to the patent's 0.25 m closest-point state.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | S-LAL14 (OHARA) / LAC14 class |
| L12 | Neg. Meniscus (2× Asph) | S-BAL42 (OHARA) |
| L13 | Negative Meniscus | S-FPL51 / FCD1 class (ED fluorophosphate, 497/816) |
| L14 | Biconvex Positive | S-NBH5 / N-KZFS5 class (654/397) |
| L15 | Negative Meniscus | S-TIH53 (OHARA) / FDS90 class |
| L16 | Positive Meniscus | TAFD40 (HOYA) / H-ZLaF90 class (001/255) |
| L21 | Negative Meniscus | S-TIL2 (OHARA) / E-FEL2 class |
| L22 | Biconvex Positive | S-FPL55 (OHARA) |
| L23 | Negative Meniscus | S-LAM55 (OHARA) |
| L31 | Pos. Meniscus (2× Asph) | L-LAH53 (OHARA) |
| L32 | Plano-Concave Negative | S-NBH8 (OHARA) / N-KZFS8 class |
| L33 | Positive Meniscus | S-FPL51 / FCD1 class (ED fluorophosphate, 497/816) |
| L34 | Biconcave Negative | S-TIM5 (OHARA) / F5 class |
| L35 | Biconvex Positive | S-FPM3 (OHARA) |
Detailed analysis available in the interactive viewer above.