US 2,662,446 A — Albrecht Wilhelm Tronnier
| 5 ELEMENTS / 4 GROUPS |
| DESIGN f = 101.259 mm |
| MODELED f/5.473 |
| 135 FULL-FRAME |
| ALL SPHERICAL |
NO_INTERNAL_RECONSTRUCTION: the patent publishes only the infinity prescription. The approximate 1.8288 m (6 ft) metadata value is inferred from the supplied manual; no variable optical gap is modeled.
| Element | Type | Glass |
|---|---|---|
| L1 | Biconvex Positive | J-BAF3 (Hikari catalog equivalent; production supplier unspecified) |
| L2 | Biconcave Negative | SF10 (Schott catalog equivalent; production supplier unspecified) |
| L3 | Biconvex Positive | E-BAF8 (Hikari catalog equivalent; production supplier unspecified) |
| L4 | Biconcave Negative | LF3 (Sumita catalog equivalent; production supplier unspecified) |
| L5 | Biconvex Positive | SF4 (Schott catalog equivalent; production supplier unspecified) |