US 2015/0177500 A1 — Tetsuya Ori, Michio Cho
| 14 ELEMENTS / 10 GROUPS |
| PATENT f = 18.56–53.46 mm |
| PATENT FNo = 2.89–4.13 |
| 3 ASPHERIC ELEMENTS / 6 ASPHERIC SURFACES |
| G3-2 OIS / G4-2 FOCUS |
NO_INTERNAL_RECONSTRUCTION: patent ¶0075 identifies G4-2 as the axial focus group moving imageward toward close focus, but Example 1 gives no numerical close-focus spacings. Production MFD is 0.30 m at wide / 0.40 m at tele; the authored var table therefore preserves zoom only and invents no focus travel.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | S-NPH2 spectral proxy (supplier unresolved) |
| L12 | Positive Meniscus | S-LAH55V spectral proxy (supplier unresolved) |
| L21 | Negative Meniscus | S-BSM16 spectral proxy (supplier unresolved) |
| L22 | Biconcave Negative (2× Asph) | 691530 coordinate class (catalog unresolved) |
| L23 | Positive Meniscus | S-NPH2 spectral proxy (supplier unresolved) |
| L31 | Biconvex Positive (2× Asph) | 803404 coordinate class (catalog unresolved) |
| L32 | Biconcave Negative | S-TIM25 spectral proxy (supplier unresolved) |
| L33 | Biconvex Positive | S-FPL51 spectral proxy (supplier unresolved) |
| L34 | Positive Meniscus | S-LAH58 spectral proxy (supplier unresolved) |
| L35 | Biconcave Negative | S-BAM12 spectral proxy (supplier unresolved) |
| L41 | Biconvex Positive (2× Asph) | 691530 coordinate class (catalog unresolved) |
| L42 | Biconcave Negative | S-LAH60 spectral proxy (supplier unresolved) |
| L43 | Positive Meniscus | S-FSL5 spectral proxy (supplier unresolved) |
| L51 | Biconvex Positive | S-LAM55 spectral proxy (supplier unresolved) |