You are browsing the archive for patents Archives - CanonWatch.

July 20, 2014
Posted in patents

Canon Patent For 45x Zoom For Waterproof Powershot D Cameras


The Canon Powershot D30 (price & specs)

4.62-205mm f/4.0-9.0

Bending optical system

Bending optical system

Egami (translated) spotted a patent filed by Canon that refers to a 45x zoom that appears to be for the water and dustproof PowerShow D compact camera series.

  • Patent Publication No. 2014-109664
    • Published Date 2014.6.12
    • Filing date 2012.11.30
    • Related 2014-109665,2014-109666
  • Example 1
    • Zoom ratio 44.41
    • Focal length f = 4.62-13.02-205.00mm
    • Fno. 3.91-6.14-9.00
    • Half angle ω = 36.14-16.58-1.08 °
    • The overall length of the lens 99.33-103.38-113.64mm
    • BF 12.11-10.81-4.28mm

 

 

July 14, 2014
Posted in patents

Canon Patent For Foveon Sensor With Anti-Reflection Film

Foveon Sensor

Egami (translated) spotted another highly interesting patent filed by Canon. The patent refers to a 3 layer, Foveon-like sensor with an insulator film applied. The film helps reduce reflection and flares.Very interesting patent, and not the first of this kind we report about, similar patents showed up in the past (here and here).

This is the third Canon patent about a Foveon-like sensor I am featuring here on CW. I think to start that such a sensor technology is definitely on Canon’s plans.

  • Patent Publication No. 2014-130890
    • Publication date 2014.7.10
    • Filing date 2012.12.28
  • Multilayer sensor drawback of
    • G is light, the image quality is degraded and reflected by the surface of the layer between the G and B layer, re-enters the B layer
  • Canon patents
    • The provision of the dielectric film and the insulating film as an anti-reflection film
    • First insulating layer, B layer, a dielectric film, insulating film, dielectric film, G layer, a dielectric film, insulating film, insulating film, dielectric film, the R layer
    • By increasing the thickness of the dielectric film, to suppress the multiple reflection
    • The dielectric film is between the G layer and B layer, the reflectance with respect to G is lower than B
July 7, 2014
Posted in patents

Canon Patents For 55mm f/1.4 Lens And Other Primes

Canon PatentsCanon Patents

Egami (translated) spotted a patent filed by Canon for a 55mm f/1.4, a 35mm f/1.4, and other fast primes.

  • Patent Publication No. 2014-123018
    • Publication date 2014.7.3
    • Filing date 2012.12.21
  • Example
    embodiment
    Example Focal length Fno. Half angle The overall length of the lens BF MOD
    One 49.53 1.45 23.60 99.46 38.10 450
    Two 35.88 1.45 31.09 126.92 38.77 300
    Three 55.42 1.45 21.33 100.44 40.24 450
    Four 50.75 1.45 23.09 98.17 38.29 450

    Image height = 21.64mm

  • Canon patents
    • Positive and negative Shibomake positive
    • Inner focus

[via Egami]

July 3, 2014
Posted in patents

Canon And Microsoft Sign Patent Agreement

Canon Announcement

Were will this lead? A rather obscure patent agreement between Canon and Microsoft. Will Canon’s imaging technology find its way into Microsoft’s smartphones (made by Nokia)? Looks like.

Press release:

Microsoft and Canon sign patent cross-licensing agreement

REDMOND, Wash., and TOKYO — July 2, 2014 — Microsoft Corp. and Canon Inc. on Wednesday broadened their strategic alliance with the announcement of a broad patent cross-licensing agreement. With this agreement, Microsoft and Canon gain licenses to each other’s highly valued and growing patent portfolios.

“This collaborative approach with Canon allows us to deliver inventive technologies that benefit consumers around the world,” said Nick Psyhogeos, general manager, associate general counsel, IP Licensing of the Innovation and Intellectual Property Group at Microsoft. “Microsoft believes cooperative licensing is an effective way to accelerate innovation while reducing patent disputes.”

This agreement covers a broad range of products and services each company offers, including certain digital imaging and mobile consumer products. Microsoft and Canon have a long history of collaborating to bring high-quality, cutting-edge products to consumers, including color technology. Contents of the agreement will not be disclosed.

“This agreement is a natural extension of our longstanding relationship with Microsoft and commitment to developing innovative technologies,” said Hideki Sanatake, senior general manager, Corporate Intellectual Property & Legal Headquarters of Canon Inc.

[SlashGear via PetaPixel]

Read the rest of this entry →

July 1, 2014
Posted in patents

Canon Patent For 1.4x Extender (Updated)

400

I made a big mistake reading the patent. Thanks to DicaHub I can correct it. The patent is not for a 400mm lens with built-in extender, but for a 1.4x extender for lenses that do not support contrast AF. With such lenses a “wobbling” effect can appear when shooting video. The patent refers to an extender with movable elements to suppress the ”wobbling” effect.

Egami (translated) spotted another patent filed by Canon, this time for a 400mm lens with built-in 1.4x extender.

  • Patent Publication No. 2014-115410
    • Publication date 2014.6.26
    • Filing date 2012.12.7
  • Master lens
    • Focal length f = 390.09mm
    • Fno. 2.90
    • Half angle ω = 2.01 °
    • Image height Y = 13.66mm
    • The overall length of the lens 367.66mm
    • BF 44.00mm
    • 15 pieces of 11-group lens configuration
    • Two fluorite
  • Example 1
    • Focal length f =-226.69mm
    • 1.41x magnification
    • Five 4-group lens configuration
    • One piece of one sided aspherical
June 30, 2014
Posted in patents

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
×