US 2003/0223122 A1, Embodiment 3 — Hiroyasu Ozaki
| 12 ELEMENTS / 10 GROUPS |
| DESIGN f = 77.25–289.96 mm |
| DESIGN F/4.6–6.2 |
| 1 ASPHERICAL SURFACE / 1 ELEMENT |
| PLASTIC ASPHERICAL ELEMENT |
Infinity prescription only; the patent prints no focus spacings. ¶0057 focuses by moving the first group (G1) toward the object. The production lens focuses to 1.3 m, which is not modeled.
| Element | Type | Glass |
|---|---|---|
| L1 | Positive Meniscus | S-BSL7 (catalog equivalent; supplier unconfirmed) |
| L2 | Negative Meniscus | S-TIH6 (catalog equivalent; supplier unconfirmed) |
| L3 | Positive Meniscus | S-BSL7 (catalog equivalent; supplier unconfirmed) |
| L4 | Biconcave Negative | S-LAL59 (catalog equivalent; supplier unconfirmed) |
| L5 | Positive Meniscus | S-TIH6 (catalog equivalent; supplier unconfirmed) |
| L6 | Biconcave Negative | S-LAH53 (catalog equivalent; supplier unconfirmed) |
| L7 | Biconvex Positive | S-BSL7 (catalog equivalent; supplier unconfirmed) |
| L8 | Biconvex Positive | S-FSL5 (catalog equivalent; supplier unconfirmed) |
| L9 | Biconcave Negative | S-TIH6 (catalog equivalent; supplier unconfirmed) |
| L10 | Positive Meniscus (1× Asph) | Unmatched (optical plastic; nd 1.52538, νd 56.3) |
| L11 | Biconvex Positive | S-TIM22 (catalog equivalent; supplier unconfirmed) |
| L12 | Biconcave Negative | S-LAH65 (catalog equivalent; supplier unconfirmed) |