Patent: 16-120mm f/3.5-5.6 IS STM

Patent: 16-120mm f/3.5-5.6 IS STM

The following patent is most likely for the EF-M range of lenses. Also appearing alongside the 16-120 IS STM in the patent is an 18-55 IS STM and an 18-200 f/3.5-6.3 IS STM.

  • Patent Publication No. 2013-257507
    • Publication date 2013.12.26
    • Filing date 2012.6.14
  • Example 1
    • Zoom ratio 2.87
    • Focal length f = 18.58 – 27.82 – 53.36mm
    • Fno 3.60 -. 4.27 – 5.69
    • Half angle ω = 36.33 – 26.15 – 14.36 °
    • Image height Y = 13.66mm
    • 86.23 – – 104.79mm 78.22 overall length of the lens
    • BF 0.50mm
    • 13 pieces of 11-group lens configuration
    • Three four-sided aspherical
  • Example 3
    • Zoom ratio 10.39
    • Focal length f = 18.60 – 60.12 – 193.23mm
    • Fno 3.55 -. 5.59 – 6.60
    • Half angle ω = 36.29 – 12.80 – 4.04 °
    • Image height Y = 13.66mm
    • 151.48 – – 184.39mm 118.58 overall length of the lens
    • BF 0.50mm
    • 18 pieces of 14-group lens configuration
    • Three three-sided aspherical
    • One UD glass
  • Example 4
    • Zoom ratio 7.14
    • 51.87 – – 117.70mm 16.48 focal length
    • Fno 3.60 -. 5.30 – 5.88
    • Half angle ω = 39.65 – 14.75 – 6.62 °
    • Image height Y = 13.66mm
    • 138.55 – – 162.35mm 114.75 overall length of the lens
    • BF 0.50mm
    • 17 pieces of 13-group lens configuration
    • Two two-sided aspherical
    • One UD glass
  • Canon patents
    • Vibration control
    • Inner focus

Source: [EG]

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