US 2015/0226942 A1 — Takashi Suzuki
| 12 ELEMENTS / 10 GROUPS |
| f = 32.818 mm (design) |
| F/2.05 (design) |
| 2ω = 44.4° |
| 1.38375× CONVERSION |
| 2 ASPHERICAL SURFACES |
NO_INTERNAL_RECONSTRUCTION: static infinity prescription; marketed 0.14 m MFD does not drive variable spacings.
| Element | Type | Glass |
|---|---|---|
| L11 | Positive Meniscus | S-FSL5 (OHARA; exact 487702 coordinate match) |
| L21 | Negative Meniscus | S-TIH53 (OHARA; exact 847238 coordinate match) |
| L22 | Negative Meniscus | S-LAL14 (OHARA; exact 697555 coordinate match) |
| L23 | Positive Meniscus | S-FTM16 (OHARA; exact 593353 coordinate match) |
| L31 | Negative Meniscus | S-TIH13 / E-FD13 class (741278 coordinate) |
| L32 | Positive Meniscus | S-LAH58 (OHARA; exact 883408 coordinate match) |
| L33 | Positive Meniscus | S-LAH58 (OHARA; exact 883408 coordinate match) |
| L34 | Biconcave Negative | S-FTM16 (OHARA; exact 593353 coordinate match) |
| L35 | Biconvex Positive | S-LAH58 (OHARA; exact 883408 coordinate match) |
| L36 | Positive Meniscus (2× Asph) | Unmatched (nd=1.56865, νd=58.6; no authoritative catalog match) |
| L37 | Negative Meniscus | S-NPH1 (OHARA; exact 808228 coordinate match) |
| L38 | Plano-Convex Positive | S-LAH58 (OHARA; exact 883408 coordinate match) |