JP H11-160615 A — Toshiji Yamashita
| 7 ELEMENTS / 6 GROUPS |
| 60mm MARKETED / 58.2635mm DESIGN EFL |
| f/1.2 MARKETED / F1.24 DESIGN |
| 2ω = 40.53° (PATENT) |
| OBJECTWARD FLOATING FOCUS — CONSTRAINED RECONSTRUCTION |
CONSTRAINED_RECONSTRUCTION: JP H11-160615 Example 1 publishes D(STO→r10) = 6.70 mm at infinity and 7.90 mm at β = -0.085, with whole-lens extension plus increased front/rear spacing. A fixed-image paraxial solve gives r14→IMG = 33.547968454 mm at the close state and MFD = 0.800033079 m.
| Element | Type | Glass |
|---|---|---|
| L1 | Positive Meniscus | 773496 class; J-LASF016 catalog-equivalent coefficient proxy (production supplier unspecified) |
| L2 | Positive Meniscus | 773496 class; J-LASF016 catalog-equivalent coefficient proxy (production supplier unspecified) |
| L3 | Positive Meniscus | 773496 class; J-LASF016 catalog-equivalent coefficient proxy (production supplier unspecified) |
| L4 | Negative Meniscus | 847238 class; J-SF03 catalog-equivalent coefficient proxy (production supplier unspecified) |
| L5 | Biconcave Negative | 699301 class; E-FD15 catalog-equivalent coefficient proxy (production supplier unspecified) |
| L6 | Biconvex Positive | 804396 class; S-LAH63Q catalog-equivalent coefficient proxy (production supplier unspecified) |
| L7 | Biconvex Positive | 806409 class; P-LASF47 catalog-equivalent coefficient proxy (production supplier unspecified) |