Canon patent for flexible and expandable LCD screen for DSLR and MILC

Canon Patent

Curious Canon patent for a flexible and expandable LCD screen for DSLR and mirrorless cameras. The LCD screen is expanded by rotating a movable grid. According to patent drawings, the technology appears to apply both for DSLRs and compact/mirrorless cameras. The machine translated patent literature seems to suggest that you may have a larger monitor just when you need it.

  • Patent Publication No. 2015-154223
    • Published 2015.8.24
    • Filing date 2014.2.14
  • Canon patents
    • Rotatable operation unit
    • The first state is a rear LCD expands and contracts, the operating face of the operating unit faces behind
    • The second state, the rear LCD is extended, the operation surface of the operation portion faces to the right
[via Egami]

Canon patent for Electronic Tilt-Shift Adapter for EOS M system?

Canon Patent

Photography Bay spotted a Canon patent that refers to an electronic Tilt-Shift adapter. While Photography Bay suggests the adapter will work with any EF lens, a lot in the patent description appears to point to a mirrorless camera instead.

The adapter in the patent has no optics, but its own CPU and electronics to help the purpose:

[…] it works hand-in-hand with the Canon EOS body and EF lenses to not only serve as a pass-through for communication but to also take on some processing burdens to make tilt-shift work on different cameras and lenses. Additionally, there are motorized drivers inside of the adapter that can drive the shift and tilt axes using controls on the camera (or the adapter itself)

Photography Bay did a great job in breaking down the complex patent literature. However, I think they missed something. As another site, Every Other Shot, points out, the images in the patent all depict a small camera body, very similar to a mirrorless camera. Moreover, it is claimed, the electronics described in the patent seem to allow to drive the tilt and the shift via a touch screen. Finally, there is a tripod mount on the adapter. This makes sense if the adapter is mounted on a small and light camera body, like a mirrorless camera.

Such adaptors already exist. Kipon, for instance, makes adapters to convert manual lensed to work as tilt-shift lenses on the EOS M. You can download the patent description here. What do you think, is this adapter exclusively for EOS M systems, or will it work with every EF lens and on a DSLR?

[via Photography Bay | Every Other Shot)

Canon patent for EF-S 100-300mm f/4-5.6 IS lens

canon patent

Canon filed a patent for a EF-S 100-300mm f/4-5.6 image-stabilised zoom. According to the patent, the lens will fit APS-C DSLRs. As usual with patents you can never be sure the described product will hit the market. If it does, this could be a new budget zoom lens.

  • Patent Publication No. 2015-138178
    • Published 2015.7.30
    • Filing date 2014.1.23
  • Example 1
    • Focal length 102.00 195.50 291.20mm
    • F number 4.16 5.14 5.88
    • Half angle of 7.63 4.00 2.69 °
    • Positive and negative positive and negative four-group zoom
    • Anti-vibration (part of the second group)
[via Egami]

Canon patent for 10-120mm f/1.8 lens for 1″ sensor camera

canon patent

Canon filed a patent for a 10-120mm f/1.8 lens for an 1″ sensor. This patent makes you think about the XC10, Canon recently announced professional camcorder with an 1″ sensor. Might this patent refer to a replacement, or to another model? I can’t say for the time being. The XC10 has a 27.3-273mm focal range equivalent, and the fastest aperture is f/2.8.

  • Patent Publication No. 2015-75523
    • Published 2015.4.20
    • Filing date 2013.10.7
  • Example 1
    • Zoom ratio 11.54
    • Focal length 10.21 56.31 117.88
    • F-number 1.87 1.79 1.78
    • Half angle (in degrees) 38.07 8.09 3.88
    • Image height 8.00
    • Overall length of the lens 555.0
    • BF 16.56
  • Canon patents
    • 5-group zoom of positive and negative TadashiTadashiTadashi
    • Inner focus (part of the first group)
    • Inner zoom
[via Egami]
Canon XC10


Canon patent for two new Cine lenses, CN-E 20-100mm f/2.8 and 20-130mm f/2.8-3.5

canon patent

We reported about a Canon patent for a Cine lens a few days ago. Today we have another patent for two more Cine lenses. Canon’s Cine lenses are professional tools that go up to $40,000.

  • Patent Publication No. 2015-18083
    • Published 2015.1.29
    • Filing date 2013.7.10
  • Example 1
    • Zoom ratio 6.00
    • Focal length 21.00 87.93 125.94
    • F number 2.77 2.77 3.66
    • Half angle of 35.54 9.68 6.79
    • Image height 15.00
    • Overall length of the lens 314.76
    • BF 50.03
  • Example 2
    • Zoom ratio 5.00
    • Focal length 20.00 69.46 100.00
    • F number 2.76 2.77 2.77
    • Half angle of 36.50 12.03 8.42
    • Image height 14.80
    • Overall length of the lens 294.44
    • BF 50.07
  • Canon patents
    • Positive and negative positive and negative positive five-group zoom
    • Inner focus (part of the first group)
    • Inner zoom
[via Egami]

Canon patent for new Cine lenses (CN-E 18-85mm f/2.8)

canon patent
CN-E 18-85mm f/2.8

Another Canon patent. This time we have a patent for a new Cine lens, CN-E 18-85mm f/2.8. The patent for the 18-85mm seems to share the same optical formula as the already released CN-E 15.5-47mm f/2.8 lens.

  • Patent Publication No. 2015-4917
    • Published 2015.1.8
    • Filing date 2013.6.24
  • Example 1
    • Zoom ratio 2.80
    • Focal length 16.00 29.68 44.80
    • F number 2.80
    • Half angle (in degrees) 43.15 26.81 18.51
    • Image height 15.00
    • Overall length of the lens 263.54
    • BF 39.04
  • Example 2
    • Zoom ratio 4.50
    • Focal length 18.50 45.61 83.25
    • F number 2.80
    • Half angle (in degrees) 39.04 18.20 10.21
    • Image height 15.00
    • Lens length 263.78 263.78 263.78
    • BF 46.93 46.93 46.93
  • Canon patents
    • 5-group zoom of positive and negative negative-positive-positive
    • Inner focus (part of the first group)
    • Inner zoom
CN-E 15.5-47mm f/2.8
CN-E 15.5-47mm f/2.8