Olympus applied for a patent about Micro-Four-Thirds lenses.
  • M.Zuiko 17mm F2.8
  • M.Zuiko 20mm F2.8
  • M.Zuiko 14mm F2.8
  • M.Zuiko 12mm F3.5
日本語ページはこちら(Japanese page is here.)
patent: M.Zuiko 17mm F2.8


product: M.Zuiko 17mm F2.8

patent: M.Zuiko 20mm F2.8

patent: M.Zuiko 14mm F2.8


patent: M.Zuiko 12mm F3.5

  • Patent Publication No.2010-186011
    • published 2010/08/26
    • filled 2009/02/12
  • Embodiment1
    • focus distance f=17.30mm
    • Fno=2.9
    • angle of view 72.8°
  • Embodiment2
    • focus distance f=20.38mm
    • Fno=2.9
    • angle of view 63.8°
  • Embodiment3
    • focus distance f=14.28mm
    • Fno=2.9
    • angle of view 83.4°
  • Embodiment4
    • focus distance f=12.33mm
    • Fno=3.6
    • angle of view 91.8°
  • Recent circumstances
    • The market demands miniaturization
      • reduce the lens
    • Distortion
      • proofread it by software, not optical
  • optical of the patent
    • devise constitution
    • Retrofocus of 2groups of -+
    • Telecentric optical system