PANASONIC LEICA DC VARIO-ELMARIT 8.8-176mm f/2.8-4.5 ASPH. (Panasonic Lumix FZ2500 / FZ2000 / FZH1)

US 2018/0081156 A1, Numerical Example 1 — Hiroaki Suzuki, Yoshiaki Kurioka, Takehiro Nishioka, Hisayuki Ii

16 ELEMENTS / 11 GROUPS
5 POWERED ZOOM GROUPS
8 ASPHERICAL SURFACES / 5 ASPHERICAL ELEMENTS

Focus Mechanism

Not modeled — the patent publishes only infinity-focus zoom states; Panasonic minimum-focus metadata does not define a close-focus G4 displacement.

Optical Elements (16 physical)

ElementTypeGlass
L1Negative MeniscusJ-LASFH13 (coordinate-compatible spectral proxy; supplier unconfirmed)
L2Positive MeniscusFCD515 (coordinate-compatible spectral proxy; supplier unconfirmed)
L3Positive MeniscusFCD515 (coordinate-compatible spectral proxy; supplier unconfirmed)
L4Negative MeniscusJ-LASFH21 (coordinate-compatible spectral proxy; supplier unconfirmed)
L5Biconcave Negative (2× Asph)S-LAH53 (coordinate-compatible spectral proxy; supplier unconfirmed)
L6Biconvex PositiveFDS18 (coordinate-compatible spectral proxy; supplier unconfirmed)
L7Positive Meniscus (2× Asph)S-LAH66N (coordinate-compatible spectral proxy; supplier unconfirmed)
L8Biconvex PositiveH-FK61 (coordinate-compatible spectral proxy; supplier unconfirmed)
L9Biconcave NegativeS-LAH58 (coordinate-compatible spectral proxy; supplier unconfirmed)
L10Biconvex PositiveFCD705 (coordinate-compatible spectral proxy; supplier unconfirmed)
L11Negative MeniscusSF15 (coordinate-compatible spectral proxy; supplier unconfirmed)
L12Positive Meniscus (2× Asph)S-TIM28 (coordinate-compatible spectral proxy; supplier unconfirmed)
L13Biconvex Positive (1× Asph)S-TIM28 (coordinate-compatible spectral proxy; supplier unconfirmed)
L14Biconcave NegativeN-LASF44 (coordinate-compatible spectral proxy; supplier unconfirmed)
L15Biconvex Positive (1× Asph)S-LAH53 (coordinate-compatible spectral proxy; supplier unconfirmed)
L16Negative MeniscusFDS24 (coordinate-compatible spectral proxy; supplier unconfirmed)