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Canon Patent – 8K Video Lens

Canon 70-200mm lens patent image

Latest patent document from Canon suggest that Canon is working on a high resolution video dedicated lens, this time Canon is working on a 70 – 200 mm f 2.8 based on diffraction optics (DO) lens that is capable to the record a resolution more than of 8k and that clearly indicates that Canon is working on it 6K or 8K capable bodies and will going to announce in near future. If we look at the egmai rumor then Canon will going to announce this lens on 2020 Olympics.

Description, self-interpretation of the patent literature

  • Patent Publication No. 2016-80877
    • Published 2016.5.16
    • Filing date 2014.10.17
  • Example 1
    • Zoom ratio 2.69
    • Focal length 72.15 134.00 193.98
    • F-number 2.91 2.91 2.91
    • Angle of view 16.69 9.17 6.36
    • Image height 21.64
    • The total lens length 223.50 223.50 223.50
    • BF 45.35 45.35 45.35
  • [0006]Conventional full high definition (number of pixels 1920 × 1080, pixel size number .mu.m) If image quality equivalent was sufficient in the conventional example as described in patent documents mentioned above. However, Super Hi-Vision (the number of pixels 8000 × 4000, pixel size 1μm before and after) for the future sought image quality, such as, is not sufficient in the imaging performance of conventional zoom lens. Therefore, further improvement of performance (in particular, reduction of the chromatic aberration amount) is required.
  • Canon patent
    • DOE ( diffractive optical element )
    • Inner zoom (Examples 2 and 3)
    • Inner focus
    • Floating (Examples 1, 4)

source

 

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