JP 2016-188967 A, Example 1 — Keisuke Omori
| 11 ELEMENTS / 10 GROUPS |
| 18.54 mm DESIGN / 18 mm MARKETED |
| F/2.88 DESIGN / f/2.8 MARKETED |
| 100.58° PATENT FULL FIELD |
| 8 ASPHERICAL SURFACES |
PUBLISHED inner focus: G12/L121 translates 0.846 mm imageward from infinity to the patent 158.000 mm close state while G11/G13 remain fixed. The patent does not state the 158 mm datum; the supported front-vertex interpretation normalizes to the manufacturer's 0.25 m sensor-plane MFD. No internal focus reconstruction is used.
| Element | Type | Glass |
|---|---|---|
| L111 | Negative Meniscus | J-PSKH4 catalog proxy; 593670 class (supplier unconfirmed) |
| L112 | Negative Meniscus | H-FK61 catalog proxy; 497816 low-dispersion crown class (supplier unconfirmed) |
| L113 | Neg. Meniscus (2× Asph) | M-PCD51 catalog proxy; 592670 molded PCD51/Q-PSKH4S class (supplier unconfirmed) |
| L114 | Positive Meniscus | 881401 TAFD33 class (supplier unconfirmed) |
| L115 | Negative Meniscus | 881401 TAFD33 class (supplier unconfirmed) |
| L116 | Biconvex Positive | H-QK3L catalog proxy; 487704 low-index crown class (supplier unconfirmed) |
| L117 | Biconvex Positive (2× Asph) | H-FK61 catalog proxy; 497816 molded low-dispersion class (supplier unconfirmed) |
| L121 | Neg. Meniscus (2× Asph) | M-TAC80 catalog proxy; 729540 high-index low-dispersion molded class (supplier unconfirmed) |
| L131 | Positive Meniscus | H-FK61 catalog proxy; 497816 low-dispersion crown class (supplier unconfirmed) |
| L132 | Positive Meniscus | H-FK61 catalog proxy; 497816 low-dispersion crown class (supplier unconfirmed) |
| L133 | Biconcave Negative (2× Asph) | M-TAFD307 catalog proxy; 882372 molded TAFD307 class (supplier unconfirmed) |