JP 2016-114800 A — Yoichi Nomura
| 16 ELEMENTS / 12 GROUPS |
| 16-85mm f/3.5-5.6 (marketing) |
| 16.48-82.45mm, modeled f/3.585-5.764 (Example 1) |
| 3 ASPHERICAL SURFACES |
| 1 PRODUCTION ED ELEMENT |
| APS-C / PENTAX K |
NO_INTERNAL_RECONSTRUCTION: JP 2016-114800 A Example 1 publishes infinity-focus zoom states only; the production 0.35 m MFD is metadata and does not define internal focus travel.
| Element | Type | Glass |
|---|---|---|
| L11 | Negative Meniscus | 847238 (vendor-neutral optical code) |
| L12 | Positive Meniscus | 773496 (vendor-neutral optical code) |
| L13 | Positive Meniscus | 804466 (vendor-neutral optical code) |
| L21r | Aspheric Synthetic-Resin Layer | Unmatched (synthetic resin; patent nd=1.52972, vd=42.7) |
| L21g | Negative Meniscus | 883408 (vendor-neutral optical code) |
| L22 | Biconcave Negative | 773496 (vendor-neutral optical code) |
| L23 | Biconvex Positive | 762265 (vendor-neutral optical code) |
| L24 | Biconcave Negative | 804466 (vendor-neutral optical code) |
| L25 | Biconvex Positive | 762265 (vendor-neutral optical code) |
| L31 | Biconvex Positive | 516641 (vendor-neutral optical code) |
| L32 | Biconvex Positive | 516641 (vendor-neutral optical code) |
| L33 | Negative Meniscus | 800422 (vendor-neutral optical code) |
| L34 | Biconcave Negative (1x Asph) | 743493 (vendor-neutral optical code) |
| L41 | Biconvex Positive (1x Asph) | 497816 (vendor-neutral optical code) |
| L42 | Biconvex Positive | 618634 (vendor-neutral optical code) |
| L43 | Biconcave Negative | 883408 (vendor-neutral optical code) |
| L44 | Biconvex Positive | 538747 (vendor-neutral optical code) |