This is a very interesting Canon patent. A Canon patent application for a bunch of lenses gives reasons to think Canon is working on curved sensors technology.

Canon patent P2021-43385A (Japan) discusses various optical formulas and optical design for different lens for camera with curved sensors. The patent application was spotted by Hi Lows Note. Learn more about curved sensors here.

Embodiment 1

• Focal length 51.50 mm
• F number 1.24
• Half angle of view 22.79
• Image height 21.64 mm
• Lens length 75.01 mm
• BF 9.10 mm

Embodiment 2

• Focal length 51.50 mm
• F number 1.24
• Half angle of view 22.79
• Image height 21.64 mm
• Lens length 74.56mm
• BF 9.05 mm

Embodiment 3

• Focal length 51.50 mm
• F number 1.03
• Half angle of view 22.79
• Image height 21.64 mm
• Lens length 76.30 mm
• BF 9.00 mm

Embodiment 4

• Focal length 35.00 mm
• F number 1.45
• Half angle of view 31.72
• Image height 21.64 mm
• Lens length 116.13 mm
• BF 9.00 mm

Embodiment 5

• Focal length 35.00 mm
• F number 1.03
• Half angle of view 31.72
• Image height 21.64 mm
• Lens length 116.35 mm
• BF 9.00 mm

Embodiment 6

• Focal length 35.00 mm
• F number 1.20
• Half angle of view 31.72
• Image height 21.64 mm
• Lens length 117.93 mm
• BF 9.00 mm

Embodiment 7

• Focal length 65.00 mm
• F number 1.24
• Half angle of view 18.41
• Image height 21.64 mm
• Lens length 93.12 mm
• BF 10.19 mm

Embodiment 8

• Focal length 82.50 mm
• F number 1.24
• Half angle of view 14.69
• Image height 21.64 mm
• Lens length 117.14 mm
• BF 14.70 mm

Embodiment 9

• Focal length 82.50 mm
• F number 1.03
• Half angle of view 14.69
• Image height 21.64 mm
• Lens length 118.58 mm
• BF 14.33 mm

Embodiment 10

• Focal length 97.10 mm
• F number 1.25
• Half angle of view 12.56
• Image height 21.64 mm
• Lens length 138.22 mm
• BF 19.37 mm

Embodiment 11

• Focal length 130.00 mm
• F number 1.25
• Half angle of view 9.45
• Image height 21.64 mm
• Lens length 177.93 mm
• BF 39.31 mm

Embodiment 12

• Focal length 31.95 mm
• F number 1.24
• Half angle of view 22.78
• Image height 13.42 mm
• Lens length 47.62 mm
• BF 6.10 mm

We think the technology discussed in the patent might get into production within the next years. More Canon patents are listed here. Some particularly interesting patent applications we think might get into production are these:

• A bunch of prime lenses for the RF mount
• An improved Electronic Viewfinder
• Patent application for RF 50mm F1.4 and an RF 35mm f/1.4 lenses
• A zoom lens that might be for an EOS R with APS-C sensor
• A smaller IBIS unit.
• A cooling adapter for the RF mount (R5 overheating?)
• A bunch of macro lenses for the RF mount.
• A 8mm f/4 circular fisheye lens for the Canon EOS R system
• A battery grip that works with differently siszed cameras
• A 100-400mm f/5.5-7.1 lens for APS-C cameras. EOS M or DSLR?
• RF 17-70mm lens for EOS R system
• IBIS coming to the EOS M and PowerShot lineup?
• Patent Application: mirrorless camera with large display and virtual control wheel
• Patent Application: IBIS and Lens IS Working Together
• Patent application for high speed mirror movement and control
• Patent application for an RF 14-28mm f/2 lens
• Patent application for an RF 50mm f/1.8 lens
• Patent application for a smart lens cap
• Patent application for celestial auto-focus
• Patent application describing a Pop-Up Flash With LED
• Patent application describing the optical formula for a RF 70-300mm F/4-5.6 IS lens for EOS R systems
• Patent application describing how to improve burst rate by compressing raw files
• Patent application describing a new way to review photos from a sequential shot
• Patent application that describes technology to improve wireless communication while reducing power consumption
• Patent application to spot and reduce moire artefacts in image data
• Patent application for weather sealed lens adapter
• Patent application for AI powered predictive camera control system
• Patent application for 18-55mm kit lens with LCD display
• Patent application to reduce noise in image files