US 2010/0238560 A1 EXAMPLE 1 — NIKON / FUJIMOTO
| 17 ELEMENTS / 12 GROUPS |
| f = 16.48–33.94 mm |
| F/4.1 CONSTANT |
| 2ω = 108°–63° |
| 4 ASPHERICAL SURFACES / 3 ELEMENTS |
| 2 ED GLASS ELEMENTS (S-FPL51) |
Internal focusing via CL21 (L21+L22) axial translation within G2. No close-focus gap data in patent; zoom-only variable gaps.
| Element | Type | Glass |
|---|---|---|
| L11 | Neg. Meniscus (2× Asph) | LAM family (cf. HOYA E-FD5) |
| L12 | Biconcave Negative | S-LAH58 (OHARA) |
| L13 | Biconcave Negative | S-LAH58 (OHARA) |
| L13r | Asph. Resin Layer (1× Asph) | UV-cure resin |
| L14 | Biconvex Positive | S-TIM35 (OHARA) |
| L21 | Negative Meniscus | S-TIH53 (OHARA) |
| L22 | Biconvex Positive | S-TIM5 (OHARA) |
| L23 | Biconvex Positive | S-NSL3 (OHARA) |
| L31 | Positive Meniscus | S-LAM54 (OHARA) |
| L32 | Biconcave Negative | S-LAH58 (OHARA) |
| L33 | Negative Meniscus | S-LAH58 (OHARA) |
| L34 | Biconvex Positive | S-TIH53 (OHARA) |
| L41 | Biconvex Positive | S-FPL51 (OHARA) — ED |
| L42 | Biconcave Negative | S-LAH60 (OHARA) |
| L43 | Biconvex Positive | S-FPL51 (OHARA) — ED |
| L44 | Negative Meniscus | S-LAH58 (OHARA) |
| L45 | Biconvex Positive | S-FSL5 (OHARA) |
| L46 | Neg. Meniscus (1× Asph) | S-LAH53 family (OHARA) |
Detailed analysis available in the interactive viewer above.