US 2018/0246292 A1 — Ryoko Tomioka, Daiki Kawamura
| 16 ELEMENTS / 12 GROUPS |
| f = 78.79 mm |
| F/2.88 |
| 2 ASPHERICAL SURFACES |
| FLOATING FOCUS |
Floating focus: G2 moves toward image, G3 moves toward object; G1 and G4 stationary. The patent identifies lateral stabilization by G4a; the centered diagram does not simulate OIS motion.
| Element | Type | Glass |
|---|---|---|
| L1a | Biconvex Positive | S-LAL18 (inferred catalog counterpart; production material unspecified) |
| L1b | Biconvex Positive | S-FPL51 (inferred catalog counterpart; production material unspecified) |
| L1c | Biconcave Negative | E-F1 (inferred catalog counterpart; production material unspecified) |
| L1d | Biconvex Pos. (2× Asph) | M-BACD12 (inferred catalog counterpart; production material unspecified) |
| L2a | Biconcave Negative | S-BAL35 (inferred catalog counterpart; production material unspecified) |
| L2b | Negative Meniscus | S-NBH52 (inferred catalog counterpart; production material unspecified) |
| L2c | Positive Meniscus | TAFD40 (inferred catalog counterpart; production material unspecified) |
| L3a | Biconvex Positive | S-FPL55 (inferred catalog counterpart; production material unspecified) |
| L3b | Biconvex Positive | S-FPL51 (inferred catalog counterpart; production material unspecified) |
| L3c | Negative Meniscus | S-TIH53 (inferred catalog counterpart; production material unspecified) |
| L4aa | Positive Meniscus | E-FDS2 (inferred catalog counterpart; production material unspecified) |
| L4ab | Biconcave Negative | S-LAM59 (inferred catalog counterpart; production material unspecified) |
| L4ac | Negative Meniscus | S-FPM3 (inferred catalog counterpart; production material unspecified) |
| L4ba | Positive Meniscus | S-LAH98 (inferred catalog counterpart; production material unspecified) |
| L4bb | Biconvex Positive | S-BSL7 (inferred catalog counterpart; production material unspecified) |
| L4bc | Negative Meniscus | S-NPH3 (inferred catalog counterpart; production material unspecified) |