JP 2003-270529 A Example 1 — Cosina / 蓬田 祥寿
| 9 ELEMENTS / 7 GROUPS |
| f ≈ 197.9 mm (patent) / 180 mm (marketed) |
| F/4 |
| 2ω ≈ 12.4° |
| ALL SPHERICAL |
Unit focus — entire optical assembly translates forward.
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | S-FPL51 (OHARA) |
| L12 | Positive Meniscus | S-FPL51 (OHARA) |
| L13 | Positive Meniscus | S-FPL51 (OHARA) |
| L21 | Negative Meniscus | S-LAH55 (OHARA) |
| L22 | Positive Meniscus | S-FSL5 (OHARA) |
| L23 | Near-Plano-Concave Negative | S-LAH53 (OHARA) |
| L24 | Positive Meniscus | S-TIH10 (OHARA) |
| L31 | Positive Meniscus | S-TIH6 (OHARA) |
| L32 | Negative Meniscus | S-LAH53 (OHARA) |
Detailed analysis available in the interactive viewer above.