US 2018/0364457 A1 — Yuhong Yao, Yoshikazu Shinohara, Lin-Yao Liao
| 7 ELEMENTS / 7 GROUPS |
| PATENT f = 4.361 mm; MODEL EFL = 4.3566 mm |
| f/1.65 DESIGN; f/1.6 MARKETED |
| 80.3° FULL FOV |
| 14 ASPHERICAL SURFACES |
Example 7 publishes an infinity prescription only; no focus travel or minimum focus distance is established for this model.
| Element | Type | Glass |
|---|---|---|
| L1 | Positive Meniscus (2× Asph) | 678553 lanthanum-crown class (supplier/material unconfirmed) |
| L2 | Biconvex Positive (2× Asph) | Unmatched (545560 patent material coordinate) |
| L3 | Negative Meniscus (2× Asph) | Unmatched (671195 patent material coordinate) |
| L4 | Positive Meniscus (2× Asph) | Unmatched (545560 patent material coordinate) |
| L5 | Negative Meniscus (2× Asph) | Unmatched (671195 patent material coordinate) |
| L6 | Positive Meniscus (2× Asph) | Unmatched (545560 patent material coordinate) |
| L7 | Negative Meniscus (2× Asph) | Unmatched (545560 patent material coordinate) |