OLYMPUS ZUIKO 9-36mm f/2-2.4 (Olympus E-10 / E-20)

US 2003/0072086 A1 Example 1 — Olympus Optical / Uzawa & Suzuki

14 powered elements / 11 powered groups
f = 9.200-35.500 mm patent design
F/2.007-2.328 patent design
2ω = 68.0°-18.8°
2 aspherical surfaces
24 mm beam-splitting prism modeled

Focus Mechanism

Rear-group focusing by G4 is specified in the patent, but numerical close-focus spacings are not published; zoom positions are modeled at infinity focus.

Optical Elements (15)

ElementTypeGlass
L1Negative MeniscusS-TIH53 (OHARA)
L2Positive MeniscusS-PHM52 (OHARA)
L3Positive MeniscusS-LAH66 (OHARA)
L4Negative MeniscusS-LAH66 (OHARA)
L5Negative MeniscusS-TIH53 (OHARA)
L6Biconcave NegativeS-FSL5 (OHARA)
L7Positive MeniscusS-TIH6 (OHARA)
L8Biconvex PositiveS-TIH53 (OHARA)
L9Biconvex Positive (front asphere)S-LAL13 (OHARA) / J-LAK13 equivalent
L10Biconcave NegativeS-TIH6 (OHARA)
L11Negative MeniscusS-TIH6 (OHARA)
L12Positive MeniscusS-PHM52 (OHARA)
L13Biconvex PositiveS-PHM52 (OHARA)
L14Biconvex Positive (rear asphere)S-LAL13 (OHARA) / J-LAK13 equivalent
P1Plane-Parallel PrismPath-splitter prism glass (516/641, patent-listed)

Analysis

Detailed analysis available in the interactive viewer above.