The latest Canon patents: 600mm f/4 and 400mm f/2.8 lenses, curved sensor and more

Here are the latest patents filed in Japan over the past few weeks:

→ Canon EF 600mm f/4 DO IS USM lens patent

Canon EF 400mm f/2.8L IS USM lens patent with two extenders (1.4x & 1.7x) built-in inside

canon-0-82x-optical-viewfinder-patent   canon-patent-for-displaying-additional-information-in-the-reflex-viewfinder
→ Canon has a 0.82x optical viewfinder patent and another patent for displaying additional information in the reflex viewfinder

Canon 3.8-380mm f/2.3-7 lens patent designed for a 1/2.3" sensor, probably for a new PowerShot camera

→ Another lens patent for a PowerShot camera: 6-22 mm f/1.4 - 1.8 (for 1/1.7" sensor)

canon-curved-sensor-patent1  canon-curved-sensor-patent2
→ Canon curved sensor patent

→ Toshiba also has a new curved sensor patent

Ricoh’s patent for a Bayer sensor without a color filter array

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