Olympus Patent for 1.4x Teleconverter Lens

Egami has discovered a new patent filed by Olympus. New Olympus patent describes a 1.4x Teleconverter lens for Micro Four Thirds mount.

The 1.4x Teleconverter lens provides  super-fast telephoto experience for sports or nature shots. Olympus already has a Teleconverter lens that is compatible with the multiple Olympus Zuiko digital lenses. This may well be a teleconverter for the upcoming M.ZUIKO Digital ED 40-150 mm f/2.8 PRO lens.

You can see the Google Translated patent details below.

Olympus Patent for 1.4x Teleconverter Lens

olympus-14x-teleconverter

 

Description and self-interpretation of the patent literature

  • Patent Publication No. 2013-235217
    • Publication date 2013.11.21
    • Filing date 2012.5.11
    • Related 2013-235218
  • Example 1 master lens
    • Focal length f = 40.80 – 147.00mm
    • Fno. 2.88
    • Angle of view 2ω = 29.79 – 8.28 °
    • BF 32.137 – 28.750mm
    • 195.839mm – 151.882 total length
    • Image height 10.82mm
    • 17 pieces of 15-group lens configuration
    • Two four-sided aspherical
    • One ED glass
    • One Super ED glass
  • Example 1 converter lens
    • Focal length f = 57.06 – 205.60mm
    • Fno. 4.03
    • Angle of view 2ω = 21.85 – 6.07 °
    • BF 14.200mm
    • 209.103mm – 165.146 total length
    • Image height 10.82mm
    • Magnification 1.40
    • Five 4-group lens configuration (positive and negative positive positive and negative)
    • One ED glass