Canon kabushiki kaisha (20240176119). ZOOM LENS AND IMAGE PICKUP APPARATUS simplified abstract

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ZOOM LENS AND IMAGE PICKUP APPARATUS

Organization Name

canon kabushiki kaisha

Inventor(s)

Yu Inomoto of Saitama (JP)

ZOOM LENS AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240176119 titled 'ZOOM LENS AND IMAGE PICKUP APPARATUS

Simplified Explanation

The patent application describes a zoom lens with a first lens unit that remains fixed and multiple lens units that move during zooming. The lens units include a variable magnification unit that consists of positive and negative lenses, satisfying specific inequalities regarding dispersion ratios and Abbe numbers.

  • The zoom lens includes a first lens unit with positive refractive power that does not move during zooming.
  • The lens units that move during zooming have varying intervals between them.
  • The variable magnification unit moves monotonously towards the image side from wide-angle to telephoto ends.
  • The variable magnification unit includes at least one positive lens and at least one negative lens with negative refractive power at the wide-angle end.
  • The zoom lens satisfies specific inequalities regarding average values of partial dispersion ratios in the variable magnification unit.
  • The variable magnification unit includes a positive lens that meets specific inequalities regarding Abbe number and partial dispersion ratio.

Potential Applications

The technology described in the patent application could be used in:

  • Camera lenses
  • Surveillance systems
  • Microscopes

Problems Solved

This technology helps in:

  • Improving image quality
  • Enhancing zoom capabilities
  • Reducing aberrations

Benefits

The benefits of this technology include:

  • Enhanced optical performance
  • Increased zoom range
  • Improved image sharpness

Potential Commercial Applications

The potential commercial applications of this technology could be in:

  • Consumer electronics
  • Photography equipment
  • Security systems

Possible Prior Art

One possible prior art for this technology could be the development of variable magnification units in zoom lenses for cameras.

Unanswered Questions

How does this technology compare to existing zoom lens designs in terms of image quality and zoom range?

This article does not provide a direct comparison with existing zoom lens designs. Further research and testing would be needed to determine the specific advantages and disadvantages of this technology compared to others on the market.

What are the potential manufacturing challenges associated with implementing this new zoom lens design?

The article does not address the potential manufacturing challenges that may arise when producing this new zoom lens design. Understanding the complexities of manufacturing processes and potential obstacles would be crucial for successful commercialization of this technology.


Original Abstract Submitted

a zoom lens includes, in order from an object side to an image side, a first lens unit with positive refractive power which does not move in zooming, and a plurality of lens units which moves in zooming. each of intervals between the respective adjacent lens units varies in zooming. the plurality of lens units includes a variable magnification unit consisting of one or a plurality of lens units which monotonously moves toward the image side in zooming from a wide-angle end to a telephoto end. the variable magnification unit includes at least one positive lens and at least one negative lens and has negative refractive power at the wide-angle end. the zoom lens satisfies a specific inequality regarding average values of partial dispersion ratios in the variable magnification unit. the variable magnification unit includes a positive lens satisfying specific inequalities regarding an abbe number and a partial dispersion ratio.