Canon Might Have a 50mm f/1.8 and a 28mm f/1.8 For The EOS R System On Their Agenda, Patent Suggests

50mm F/1.8
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Canon patent application 2019-0113711 (USA) describes the optical formula for an RF 50mm f/1.8 and RF 28mm f/1.8 lens, both for the Canon EOS R full frame mirrorless system.

Focal length 48.50
F-number 1.85
Half angle of view (degrees) 24.04
Image height 21.64
Total lens length 95.00 
BF 15.80

Focal length 28.80
F-number 1.85
Half angle of view (degrees) 36.91
Image height 21.64
Total lens length 80.30 
BF 7.00 

It’s likely Canon will launch these non-L lenses sooner than later. Both are popular focal lengths on full frame, and it’s also likely Canon is set to offer some less expensive (aka budget) lenses for the EOS R system.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production in the next few years are these:

Source: Canon News

Future Canon Cameras Might Have Pop-Up Flash With LED, Patent Suggests

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Interesting Canon patent application (2019-056787, Japan). The patent describes a pop-up flash with LEDs. This is interesting for videographers or anyone needing a continuous light source for their work.

From the patent literature:

[…] when using LED which carries out a continuous light as a light source of a lighting system, the measure against the heat which occurs from LED serves as problem. If the measure against heat is not performed sufficiently, LED deteriorates for a short time and there is a possibility that it may become impossible for light volume to be deteriorated or to switch on the light. If it is a lighting system removable to a camera like a Patent document 2, in order to radiate heat in the heat which occurs from LED, it is possible to provide a radiation substrate with a large area, but in the type which has a pop-up function, it is difficult to provide a radiation substrate with a large area near the LED. 

Then, in a lighting system movable to the stowed position and usage position which used LED as the light source, an object of the present invention is to enable it to radiate heat in the heat which suppresses enlargement and occurs from LED. 

[Means for solving problem] 
 
To achieve the above objects, the lighting system concerning the present invention, The radiation substrate which has a light-emitting part which uses LED as a light source, and a housing, is a lighting system with the aforementioned light-emitting part movable to the stowed position stored by the aforementioned housing and the usage position projected from the aforementioned housing, and carries out surface mounting of the aforementioned LED, It has a projection surface which ejects the light from the aforementioned LED, and a reflective surface which turns the light from the aforementioned LED to the aforementioned projection surface, and it reflects, and the aforementioned radiation substrate is arranged in the surface which is not parallel to the aforementioned projection surface. 
  • canon patent
  • canon patent

This patent might indeed go into production sooner than later.

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production in the next few years are these:

Source: Canon News

Canon Patent For 85mm f/1.2, 100mm f/1.4, 24-70mm f/2.8, and 28-85mm f/2-2.8 Lenses for Mirrorless

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Another Canon patent application spotted by Hi Lows Note.

Patent application 2019-49646A and 2019-49645A describes optical formulas for 85mm f/1.2, 100mm f/1.4, 24-70mm f/2.8, and 28-85mm f/2-2.8 lenses for mirrorless cameras.

Focal length: 86.5 mm
F number: 1.24
Image height: 21.64 mm
Lens length: 135.0 mm
Back focus: 13.5 mm

Focal length: 100.0 mm
F number: 1.46
Image height: 21.64 mm
Lens length: 142.0 mm
Back focus: 14.1 mm

Zoom ratio: 2.75
Focal length: 24.71 – 45.00 – 67.90 mm
F number: 2.88
Half angle of view: 41.21- 25.68 – 17.67
Image height: 21.64 mm
Lens length: 143.89 – 161.78 – 179.68 mm
Back focus: 13.42 – 27.34 – 38.58 mm

Zoom ratio: 3.04
Focal length: 28.00 – 53.77 – 85.00 mm
F number: 2.00 – 2.60 – 2.88
Half angle of view: 37.69 – 21.92 – 14.28
Image height: 21.64 mm
Lens length: 158.50 – 176.83 – 195.16 mm
Back focus: 16.00 – 28.52 – 41.05 mm

Canon Patent For Stacked Sensor Technology

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Canon patent application US20190096931 describes a stacked sensor. If you want to lear more about how a stacked sensor works, this article might help.

From the patent literature:

In CCD type and amplification-type solid-state image pickup devices used for digital still cameras, camcorders, and the like, in order to obtain high definition images, the sizes of pixels are required to be reduced. However, as the sizes of pixels are reduced more and more, a light receiving area of a photoelectric converter, in a pixel, detecting light is decreased, and the sensitivity is decreased. 

Source: Canon News

Canon Patent For 8-15mm Fisheye Lens For APS-C Mirrorless

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Canon patent application US20190094490 describes the optical formula for an 8-15mm fisheye lens. Given the back focus distance this is most likely a lens for the EOS M system.

From the patent literature:

In order for a zoom lens to have a wide angle of view and achieve high optical performance across the entire zoom range and the entire object distance range, it is important to appropriately set the elements constituting the zoom lens. For example, it is important to appropriately set the zoom type (the number of lens units and the refractive power of each lens unit), the lens configuration, and the lens unit selected for focusing, and so on. 

If these configurations are not appropriate, achieving a wide angle of view will increase the size of the whole system and also increase the variations of various aberrations caused by zooming and focusing. It will therefore be difficult to achieve high optical performance across the entire zoom range and the entire object distance range. 

For example, for a fisheye zoom lens having an imaging half angle of view of 85 degrees or more, a meniscus lens having an extremely strong negative refractive power needs to be disposed closest to the object side within the first lens unit in order to take light rays into the zoom lens from such a wide angle of view. Generally, lenses in a first lens unit not only have strong refractive powers but also have large effective diameters. Thus, when it comes to a fisheye zoom lens, its first lens unit is heavy and large as well. Then, if the entirety or part of the first lens unit (the closest lens unit to the object side) is used as a focus lens unit, quick focusing will be difficult. 

Source: Canon News

Here Is Another Canon Patent For IBIS (In Body Image Stabilisation)

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Not the first Canon patent application about IBIS (In Body Image Stabilisation).

Patent application US20190094566 describes the technology for a sensor based image stabilisation system. 

Patent application abstract:

An image stabilizing apparatus includes an optical element, a first fixing member, a movable member that holds the optical element, and is movably supported in a flat surface perpendicular to an optical axis, a ball sandwiched between the movable member and the first fixing member, a vibration wave actuator that includes a piezoelectric element and a vibrating plate, and moves the movable member, a slider that contacts the vibrating plate, and is provided in the movable member, a spring that pressurizes the vibrating plate against the slider, and a second fixing member fixed to the first fixing member so as to make the vibrating plate and the slider contact each other with a predetermined pressure.

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