Canon Patent for 1.03x Magnification Viewfinder

Canon Patent

Egami (translated) spotted a patent filed by Canon for a 1.03x magnification viewfinder. Do not think this patent has something to do with the upcoming EOS 7D replacement, since I doubt Canon would disclose related informations short before the announcement.

  • Patent Publication No. 2014-115451
    • Publication date 2014.6.26
    • Filing date 2012.12.10
  • Example 9
    • -3 -1 +1 Viewfinder diopter
    • Focal length f = 46.84 48.38 49.99mm
    • Eye point 22.00mm
    • 1.03 1.03 1.02x magnification
    • Pentagonal prism
    • Condenser lens made of glass
    • Eyepiece lens system with the exception of the condenser lens, 4-group structure of the positive and negative positive negative
    • In turn, resin (single-sided aspherical surface), glass, resin (single-sided aspherical surface), the material is glass
  • Patent Publication No. 2014-115452
    • Publication date 2014.6.26
    • Filing date 2012.12.20
  • Example 1
    • -3.00 -1.00 +1.00 Diopter
    • Focal length f = 62.22 59.69 57.39mm
    • Eye Relief 19.9mm
    • Maximum image height 12.4mm
    • Pupil diameter φ15mm
    • Magnification 0.87x
    • Pentagonal mirror

Canon Patent For 5 Layer Foveon-Like Sensor

Canon Patent

Egami (translated) spotted a very interesting sensor patent filed by Canon.

The patent refers to a 5 layer sensor, respectively 3 layers for RGB, one for IR, and one for UV. The sensor design aims to a more realistic reproduction of skin tones. As you can see Canon is always pushing research on sensor design.

  • Patent Publication No. 2014-103644
    • Publication date 2014.6.5
    • Filing date 2012.11.22
  • Canon patents
    • I get the visible light
    • I get the ultraviolet light
    • I get the infrared light
    • I want to extract the skin area
    • The skin region of visible light, I will correct the image from the difference of the skin area of ​​ultraviolet light
    • Signal value of the infrared light is regarded as the skin area, the high part

2014_103644_fig03b

Canon Patent For 100-400mm f/3.5-5.6 STM And 55-250mm f/4-5.6 IS STM Lenses

Canon Patent
100-400mm f/3.5-5.6 STM
Canon Patent
55-250mm f/4-5.6 IS STM

Egami (translated) spotted a patent filed by Canon for 100-400mm f/3.5-5.6 STM and 55-250mm f/4-5.6 IS STM lenses.

  • Patent Publication No. 2014-102462
    • Publication date 2014.6.5
    • Filing date 2012.11.22
  • Example 1
    • Zoom ratio 4.24
    • Focal length f = 56.90-133.00-241.28mm
    • Fno. 4.12-5.04-5.83
    • Half angle ω = 13.50-5.86-3.24 °
    • Image height 13.66mm
    • 154.33-176.38-191.20mm overall length of the lens
    • BF 41.21mm
  • Example 5
    • Zoom ratio 3.73
    • Focal length f = 104.59-199.99-389.99mm
    • Fno. 4.58-5.03-5.87
    • Half angle ω = 11.69-6.17-3.18 °
    • Image height 21.64mm
    • 245.09-285.06-308.91mm overall length of the lens
    • BF 68.73mm

 

Canon Patent For A Multi-View And Multi-Lens Device

mv

Another hard to decipher patent by Canon, spotted by Egami (translated). Apparently it points to a muli-view and multi-lens camera. Whatever such a device is for. A new cool gadget by Canon?

  • Patent Publication No. 2014-110442
    • Publication date 2014.6.12
    • Filing date 2012.11.30
  • Canon patents
    • Multi-lens camera concentrically arranged an imaging device and a plurality of lenses
    • I do light field, angle of view changes, perspective changes, noise reduction, resolution conversion, HDR, distance estimation, the disparity estimation
  • Patent Publication No. 2014-110443
    • Publication date 2014.6.12
    • Filing date 2012.11.30
  • Canon patents
    • I provided a handle to the multi-lens camera
    • Parameter change in the rotation of the handle
  • Patent Publication No. 2014-110444
    • Publication date 2014.6.12
    • Filing date 2012.11.30
  • Canon patents
    • I reduce the number of the imaging lens element than the number of multi-lens camera
    • By the rotation of the optical unit, to select a specific lens

Canon Patent Visually Guides You While Manually Focusing

2014_89329_fig03

To be honest I am not 100% sure I got this right, since I read Google’s automatic translation.

However, Egami (translated) spotted a patent filed by Canon that visually guides you thru the in camera display system while manual focusing (fine focusing, I suppose). Any help to better understand this patent would be appreciated.

  • Patent Publication No. 2014-89329
    • Publication date 2014.5.15
    • Filing date 2012.10.30
  • Canon patents
    • I get information on the rotation direction of the focus ring
    • I get the image of the near side and the image of the far side of the optimum than the current position
    • I displays an image corresponding to the direction of rotation of the focus ring
    • Upon detecting the rotation of the focus ring, to release the image display