Canon Patent: 28-70mm f/2.8 IS Lens

Here is a new Canon patent application. Does the patent refer to the Canon RF 24-70mm f/2.8L IS?

Canon patent application 2024078721 (Japan, published 6/11/2024) discusses optical formulas for a 28-70mm f/2.8 IS lens.

From the patent literature:

• The present invention provides a compact zoom lens that has a high zoom ratio, good optical performance over the entire zoom range from the wide-angle end to the telephoto end, and has a large aperture and an image stabilization mechanism.
• Background Technology
  In recent years, zoom lenses used in imaging devices such as digital cameras using solid-state imaging elements and silver halide film cameras are required to be small in size, have high optical performance, have a large aperture, and be equipped with an image stabilization mechanism (anti-vibration mechanism).
• In order to achieve this, it is important to appropriately set the zoom type of the zoom lens and the lens group that moves during zooming.
• The present invention provides a compact zoom lens that has a high zoom ratio and good optical performance over the entire zoom range from the wide-angle end to the telephoto end, has a large aperture, and has an image stabilization mechanism.

More Canon patents are listed here.

[via asobinet]