Canon patent for LCD viewfinder through magnifying glass

2015_171116_fig012015_171116_fig02

Canon patent for a LCD viewfinder that’s turned on by putting a magnifying glass on the rear display. Sort of EVF on the cheap.The display area on the LCD display is reduced to work with the magnifying glass (that acts as viewfinder). If you look at the images above you can see what I mean. The viewfinder is flipped on the LCD display. If we will ever see this go into production it will likely be featured on entry level cameras.

  • Patent Publication No. 2015-171116
    • Published 2015.9.28
    • Filing date 2014.3.11
  • Canon patents
    • Touch panel display
    • The touch panel display viewfinder if touched, changing the display area
    • Finder to return to the original full-screen display If you had to leave
    • Or finger touches, finder to identify whether touches
[via Egami]

Canon patent for 28-200mm f/3.5-5.6 lens

canon patent

Canon patent for a 28-200mm f/3.5-5.6 lens. Not sure where to put this optical formula. Looks like a budget super-zoom.

  • Patent Publication No. 2015-172612
    • Published 2015.10.1
    • Filing date 2014.3.11
  • Example 1
    • 1
    • Zoom ratio 6.68
    • Focal length 28.90 51.17 193.10
    • F-number 3.63 4.39 5.88
    • Half angle (in degrees) 36.82 22.92 6.39
    • Image height 21.64 21.64 21.64
    • Overall length of the lens 132.70 149.90 182.70
    • BF 39.40 49.73 66.13,
[via Egami]

Canon patent for mount adapter with tilt-shift functionality

canon patent

Canon patent for a mount adapter with built-in tilt-shift functionality. This is not the first patent by Canon for such a technology.

  • Patent Publication No. 2015-172745
    • Published 2015.10.1
    • Filing date 2014.2.20
  • Canon patents
    • Mount adapter with a tilt
    • Tilt and shift
    • Lens of long flange back
    • Short flange back of the body
    • Wide image circle lens
    • Narrow of the image circle body
[via Egami]

Canon patent combining Phase Detect with Light-Field technology for accurate Auto-Focus

Canon Patent
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Canon patent that appears to merge Phase Detect with Light-Field technology to improve auto-focus accuracy.

In current Canon Hybrid AF sensors, Phase Detect AF is used to quickly lock AF and Contrast Detect is employed to accurately set focus. The present patent employs Light-Field technology instead of the Contrast Detect part. That’s a cool trick, since Light-Field allows to set the focus after having shot the photo. If I get the patent right, Phase Detect is used to lock AF, and then Light-Field is used for the fine-tuning. This is not the first Canon patent referring to Light-Field technology (1 | 2). Light-Field technology is featured on Lytro cameras.

Will we see this tech on future Canon sensors? Possibly, the question is when.

  • Patent Publication No. 2015-161785
    • Published 2015.9.7
    • Filing date 2014.2.27
  • Canon patents
    • The image plane phase difference AF, the light field I comprises a
    • First, it is focusing on the image plane phase difference AF
    • Then, detect the focus from refocus image
    • To determine the driving range from the re-focus information in the case of out-of-focus
[via Egami]