18490639. ZOOM LENS AND IMAGING APPARATUS INCLUDING THE SAME simplified abstract (CANON KABUSHIKI KAISHA)

ZOOM LENS AND IMAGING APPARATUS INCLUDING THE SAME

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

KOHEI Kimura of Saitama (JP)

ZOOM LENS AND IMAGING APPARATUS INCLUDING THE SAME - A simplified explanation of the abstract

This abstract first appeared for US patent application 18490639 titled 'ZOOM LENS AND IMAGING APPARATUS INCLUDING THE SAME

Simplified Explanation

The zoom lens described in the patent application consists of a first lens unit with positive refractive power, a second lens unit with negative refractive power, and a rear lens group with one or more lens units. The lens units are arranged in order from the object side to the image side, with changing intervals between adjacent lens units during zooming. The first lens unit moves towards the object side during zooming from wide angle to telephoto, while the second lens unit includes three or more lenses and satisfies predetermined inequalities.

• The zoom lens comprises a first lens unit with positive refractive power.
• It also includes a second lens unit with negative refractive power.
• The lens units are arranged in a specific order from the object side to the image side.
• Intervals between adjacent lens units change during zooming.
• The first lens unit moves towards the object side during zooming from wide angle to telephoto.
• The second lens unit consists of three or more lenses.
• The zoom lens satisfies predetermined inequalities.

Potential Applications

The technology described in this patent application could be used in various optical devices such as cameras, camcorders, and telescopes.

Problems Solved

This technology solves the problem of achieving high-quality zoom capabilities in optical devices while maintaining compact size and lightweight design.

Benefits

The benefits of this technology include improved zoom performance, compact design, and enhanced image quality.

Potential Commercial Applications

The potential commercial applications of this technology include consumer electronics, professional photography equipment, and surveillance systems.

Possible Prior Art

One possible prior art for this technology could be existing zoom lens designs in cameras and other optical devices that use similar principles of lens arrangement and movement during zooming.

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

This article does not provide a direct comparison between this technology and existing zoom lens designs.

What are the specific predetermined inequalities that the zoom lens must satisfy for optimal performance?

The article does not specify the exact predetermined inequalities that the zoom lens must meet for satisfactory operation.

Original Abstract Submitted

A zoom lens comprises a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear lens group including one or more lens units. The first lens unit, the second lens unit, the rear lens group are arranged in order from an object side to an image side. Intervals between adjacent lens units change during zooming. The first lens unit is configured to move toward the object side during zooming from a wide angle end to a telephoto end. The second lens unit includes three or more lenses. The zoom lens satisfies predetermined inequalities.