Archive for the ‘Canon Patents’ Category

Patent: CN-E 35-260mm f/2.8 Soft Focus Lens

Patent: CN-E 35-260mm f/2.8 Soft Focus Lens

Canon has published a patent for a new zoom cinema lens with a soft focus mechanism. The lens is for the Super 35 image sensor size.

Patent Publication No. 2014-235203 (Google Translated)

  • Published 2014.12.15
  • Filing date 2013.5.31

Example 3

  • Zoom ratio 7.50
  • The focal length f = 34.00-68.00-102.00-136.00-254.99mm
  • Fno. 2.70
  • Half angle ω = 24.58-12.88-8.67-6.52-3.49 °
  • Image height Y = 15.55mm
  • Overall length of the lens 441.54mm
  • BF 51.02mm

Canon patent

  • 4-group zoom of positive and negative negative-positive
  • Spherical aberration adjustment group (soft focus)
  • Not shift the focus position can be switched to soft focus

Source: [EG]

cr

26 Comments

Patent: Plastic/Resin Mount for DSLRs

Patent: Plastic/Resin Mount for DSLRs

A patent showing a metal & plastic resin mount for DSLRs is available to view. The plastic part of the mount seems to be for a much smoother mounting and dismounting of lenses. There could also be some weight and cost savings for lower priced cameras like the EOS Rebel line.

Patent Publication No. 2014-240858 (Google Translated)

  • Published 2014.12.25
  • Filing date 2013.6.11

Canon patent

  • Of bayonet mechanism mount
  • Mounting an inner peripheral portion of the body has a concave rail surfaces of metal
  • Mount the outer periphery of having a rail surface of the convex shape in the resin
  • That resin rail than the metal rail, I have a narrow width and high height

Source: [EG]

cr

22 Comments

Patent: EF-M 70-400 f/4.5-7.2 STM

Patent: EF-M 70-400 f/4.5-7.2 STM

A patent for a new supertelephoto zoom optical formula for the EOS M system has surfaced in the form of an EF-M 70-400 f/4.5-7.2 STM.

  • Patent Publication No. 2014-228734 (Google Translated)
    • Published 2014.12.8
    • Filing date 2013.5.23
  • Example 3
    • Zoom ratio 5.58
    • The focal length f = 69.59-251.52-388.00mm
    • Fno. 4.68-6.30-7.00
    • Half angle ω = 11.11-3.11-2.02 °
    • Image height 13.66mm
    • Overall length of the lens 155.01-227.97-240.02mm
    • BF 15.81-37.15-46.87mm
    • Inner focus

Source: [EG]

cr

53 Comments

Patent: Sensor Technology

Patent: Sensor Technology

A new sensor patent from Canon has appeared and continues to add to what are sure to be new full frame sensors next year.

NL breaks down the patent…
“Patent from Canon that varies the sensitivity of pixels by positioning the photon detection zone deeper in the design.”

Source: [EG] via [NL]

cr

25 Comments

Patent: Contact Cleaning Body Cap

Patent: Contact Cleaning Body Cap

Here’s a fun one, howabout a body cap that cleans the contacts in the camera every time you put it on and take it off? Mix that with a backcap that does the same and that should eliminate those pesky contact errors.

Patent Publication No. 2014-219568

  • Published 2014.11.20
  • Filing date 2013.5.8

Canon patent

  • Body cap with a cleaning member for rubbing the contact

Source: [EG]

cr

13 Comments