JP 2015-118186 A, Numerical Example 1 — Masaki Harada, Kosuke Machida
| 11 ELEMENTS / 8 GROUPS |
| DESIGN f = 34.5 mm |
| DESIGN F/1.86 |
| 1 ASPHERICAL SURFACE / 1 ELEMENT |
| 1 ED ELEMENT |
G1 stays fixed; G2 and the stop move objectward as one unit. Printed near state (β = −1/30): D0 = 1019.325 mm from the first surface, 1.135 m object-to-image, D7 = 8.063 mm; its BF of 39.572 mm is derived with G1 fixed to the image plane. The 0.25 m end is derived, not printed: rigid G2 moved 8.239 mm (D7 0.976 mm, BF 46.659 mm), modeled β = −0.240 against Nikon's 0.24×.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | J-SK5 (Hikari catalog equivalent; production supplier unspecified) |
| L12 | Positive Meniscus | J-SF11 (Hikari catalog equivalent; production supplier unspecified) |
| L13 | Biconcave Negative | J-SK5 (Hikari catalog equivalent; production supplier unspecified) |
| L14 | Biconvex Positive | BACD15 (HOYA catalog equivalent; production supplier unspecified) |
| L21 | Biconvex Positive | J-LASF015 (Hikari catalog equivalent; production supplier unspecified) |
| L22 | Biconvex Positive | J-PSKH1 (Hikari catalog equivalent; production supplier unspecified) |
| L23 | Biconcave Negative | E-FD5 (HOYA catalog equivalent; production supplier unspecified) |
| L24 | Biconcave Negative | J-SF2 (Hikari catalog equivalent; production supplier unspecified) |
| L25 | Biconvex Positive | J-LAK14 (Hikari catalog equivalent; production supplier unspecified) |
| L26 | Biconvex Positive | J-LASF016 (Hikari catalog equivalent; production supplier unspecified) |
| L27r | Hybrid Aspherical Resin Layer | Unmatched (patent resin layer, nd=1.5361, νd=41.21; chemistry and supplier unspecified) |
| L27g | Positive Meniscus | J-LAK8 (Hikari catalog equivalent; production supplier unspecified) |