JP 2011-039260 A, Numerical Example 2 — Tomoki Kono
| 22 ELEMENTS / 16 GROUPS |
| DESIGN f = 51.50–485.00 mm |
| DESIGN F/4.57–6.47 |
| ALL SPHERICAL |
| 4 SLD ELEMENTS |
Rear focus, with a published near state at each of the patent's three zoom columns: the negative group L7 moves toward the image to focus, by 0.24 mm at 51.5 mm, 0.52 mm at 159.6 mm and 1.14 mm at 485 mm. The patent's near states hold magnification at about −0.025 (object to image 2.24 m, 6.43 m and 19.0 m); they are test distances, not the maker's 0.5–1.8 m minimum focus. Intermediate focus and zoom positions are interpolated.
| Element | Type | Glass |
|---|---|---|
| E1 | Negative Meniscus | NBFD10 (HOYA coordinate equivalent; supplier unconfirmed) |
| E2 | Biconvex Positive | FCD1 (HOYA coordinate equivalent; supplier unconfirmed) |
| E3 | Positive Meniscus | FCD1 (HOYA coordinate equivalent; supplier unconfirmed) |
| E4 | Biconcave Negative | N-LAF34 (SCHOTT coordinate equivalent; supplier unconfirmed) |
| E5 | Biconvex Positive | NBFD15 (HOYA coordinate equivalent; supplier unconfirmed) |
| E6 | Biconcave Negative | LAC8 (HOYA coordinate equivalent; supplier unconfirmed) |
| E7 | Positive Meniscus | FDS90 (HOYA coordinate equivalent; supplier unconfirmed) |
| E8 | Biconcave Negative | N-LAF34 (SCHOTT coordinate equivalent; supplier unconfirmed) |
| E9 | Biconvex Positive | FCD1 (HOYA coordinate equivalent; supplier unconfirmed) |
| E10 | Biconvex Positive | H-QK3L (CDGM coordinate equivalent; supplier unconfirmed) |
| E11 | Biconcave Negative | FDS90 (HOYA coordinate equivalent; supplier unconfirmed) |
| E12 | Biconcave Negative | TAC8 (HOYA coordinate equivalent; supplier unconfirmed) |
| E13 | Positive Meniscus | FD60 (HOYA coordinate equivalent; supplier unconfirmed) |
| E14 | Positive Meniscus | FCD1 (HOYA coordinate equivalent; supplier unconfirmed) |
| E15 | Positive Meniscus | H-K9L (CDGM coordinate equivalent; supplier unconfirmed) |
| E16 | Biconvex Positive | H-QK3L (CDGM coordinate equivalent; supplier unconfirmed) |
| E17 | Biconvex Positive | H-QK3L (CDGM coordinate equivalent; supplier unconfirmed) |
| E18 | Negative Meniscus | FDS90 (HOYA coordinate equivalent; supplier unconfirmed) |
| E19 | Biconvex Positive | FD60 (HOYA coordinate equivalent; supplier unconfirmed) |
| E20 | Biconcave Negative | LAC8 (HOYA coordinate equivalent; supplier unconfirmed) |
| E21 | Biconcave Negative | NBFD10 (HOYA coordinate equivalent; supplier unconfirmed) |
| E22 | Biconvex Positive | E-FL6 (HOYA coordinate equivalent; supplier unconfirmed) |