JP 2009-168934 A, Embodiment 3 — Hisayuki Yamanaka, Dayong Li
| 16 ELEMENTS / 11 GROUPS |
| DESIGN f = 71.77-291.96 mm |
| DESIGN F/4.59-5.79 |
| ALL SPHERICAL |
| 1 ED ELEMENT |
PUBLISHED infinity and 1.6 m states at the wide, middle and tele positions. The rear group L5 (L51-L53) moves toward the image to focus closer: 0.73 mm at wide, 1.62 mm at middle and 4.82 mm at tele for 1.6 m. Intermediate focus positions and intermediate zoom positions are calculated, not factory data. Sony's marketed minimum focus is 1.2 m; the model stops at the patent's 1.6 m.
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | FC5 (Hoya equivalent) |
| L12 | Negative Meniscus | NBFD11 (Hoya equivalent) |
| L13 | Positive Meniscus | FCD1 (Hoya equivalent) |
| L21 | Negative Meniscus | TAF1 (Hoya equivalent) |
| L22 | Biconcave Negative | FC5 (Hoya equivalent) |
| L23 | Positive Meniscus | E-FD5 (Hoya equivalent) |
| L31 | Biconvex Positive | FC5 (Hoya equivalent) |
| L32 | Negative Meniscus | TAF1 (Hoya equivalent) |
| L41 | Positive Meniscus | E-FD10 (Hoya equivalent) |
| L42 | Negative Meniscus | NBFD15 (Hoya equivalent) |
| L43 | Biconvex Positive | FC5 (Hoya equivalent) |
| L44 | Negative Meniscus | NBFD15 (Hoya equivalent) |
| L45 | Positive Meniscus | TAF1 (Hoya equivalent) |
| L51 | Negative Meniscus | BACD16 (Hoya equivalent) |
| L52 | Positive Meniscus | FDS90 (Hoya equivalent) |
| L53 | Biconcave Negative | TAF1 (Hoya equivalent) |