JP WO2019/188070 A1 — Koji Toyoda, Maya Kiyotoshi, Keita Kaifu, Kentaro Tawada
| 15 ELEMENTS / 12 GROUPS |
| f ≈ 9.0–66.3 mm (DESIGN) |
| F/2.97–4.72 (DESIGN) |
| 2ω ≈ 84.4°–12.4° |
| 14 ASPHERICAL SURFACES |
Not modeled. Patent Example 3 publishes infinity-focus zoom states only and identifies no focus group; focus positions repeat the infinity spacings. Sony lists minimum focus of approx. 0.08 m (wide) and 1.0 m (tele).
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | FDS18 (HOYA) — 946180 class, ultra-high-index dense flint; catalog coordinate match, supplier unconfirmed |
| L12 | Biconvex Positive | PCD40 (HOYA) — 620639 class, dense phosphate crown; catalog coordinate match, supplier unconfirmed |
| L13 | Positive Meniscus | TAC8 (HOYA) / S-LAL18 (OHARA) — 729547 class, lanthanum crown; catalog coordinate match, supplier unconfirmed |
| L21 | Neg. Meniscus (2× Asph) | M-TAFD305 (HOYA) — 851401 class, lanthanum flint molding glass; catalog coordinate match, supplier unconfirmed |
| L22 | Biconcave Negative (1× Asph) | M-TAFD305 (HOYA) — 851401 class, lanthanum flint molding glass; catalog coordinate match, supplier unconfirmed |
| L23 | Biconvex Positive | FDS18 (HOYA) — 946180 class, ultra-high-index dense flint; catalog coordinate match, supplier unconfirmed |
| L24 | Neg. Meniscus (2× Asph) | M-TAFD305 (HOYA) — 851401 class, lanthanum flint molding glass; catalog coordinate match, supplier unconfirmed |
| L31 | Biconvex Positive (2× Asph) | M-PCD4 (HOYA) — 619639 class, phosphate crown molding glass; catalog coordinate match, supplier unconfirmed |
| L32 | Biconvex Positive (2× Asph) | M-FCD1 (HOYA) — 497816 class, fluorophosphate ED molding glass; molding-grade spectral proxy; production supplier unconfirmed |
| L33 | Negative Meniscus | TAFD55 (HOYA) / S-LAH99 (OHARA) — 001291 class, lanthanum dense flint; catalog coordinate match, supplier unconfirmed |
| L41 | Biconvex Positive (1× Asph) | M-FCD1 (HOYA) — 497816 class, fluorophosphate ED molding glass; molding-grade spectral proxy; production supplier unconfirmed |
| L42 | Negative Meniscus | FDS18 (HOYA) — 946180 class, ultra-high-index dense flint; catalog coordinate match, supplier unconfirmed |
| L51 | Positive Meniscus | FDS90 (HOYA) / N-SF57 (SCHOTT) — 847238 class, dense flint; catalog coordinate match, supplier unconfirmed |
| L52 | Biconcave Negative (2× Asph) | M-TAFD305 (HOYA) — 851401 class, lanthanum flint molding glass; catalog coordinate match, supplier unconfirmed |
| L61 | Pos. Meniscus (2× Asph) | M-TAFD305 (HOYA) — 851401 class, lanthanum flint molding glass; catalog coordinate match, supplier unconfirmed |