US 2015/0092100 A1 Example 1 — Sony / Chen, Miyagawa
| 7 ELEMENTS / 5 GROUPS |
| f ≈ 53.6 mm |
| F/1.8 |
| 2ω ≈ 43° |
| 5 ASPHERICAL SURFACES (3 ELEMENTS) |
Inner focus — G2 (single element L21) translates via linear motor. G1, STO, and G3 fixed.
| Element | Type | Glass |
|---|---|---|
| L11 | Biconcave Negative | S-TIM2 (OHARA) |
| L12 | Biconvex Positive | S-LAL18 (OHARA) |
| L13 | Negative Meniscus | S-TIH53 (OHARA) |
| L14 | Pos. Meniscus (1× Asph) | M-TAF101 (HOYA) |
| L21 | Neg. Meniscus (2× Asph) | S-FSL5 (OHARA) |
| L31 | Biconvex Positive (2× Asph) | Fluorocrown / phosphate crown, PGM class (592/670, uncertain) |
| L32 | Negative Meniscus | S-TIM35 (OHARA) |
Detailed analysis available in the interactive viewer above.