18514643. ZOOM LENS AND APPARATUS INCLUDING THE SAME simplified abstract (CANON KABUSHIKI KAISHA)
ZOOM LENS AND APPARATUS INCLUDING THE SAME
Organization Name
Inventor(s)
SHUNJI Iwamoto of Tochigi (JP)
ZOOM LENS AND APPARATUS INCLUDING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18514643 titled 'ZOOM LENS AND APPARATUS INCLUDING THE SAME
Simplified Explanation
The patent application describes a zoom lens with a specific configuration of lens units that allows for zooming, image stabilization, and focusing.
- The zoom lens includes a first lens unit with negative refractive power, a second lens unit with positive refractive power, and a rear lens group with one or more lens units.
- The distance between adjacent lens units changes during zooming, with the first lens unit remaining stationary while the second lens unit moves.
- The second lens unit includes subunits with positive refractive power, arranged in a specific order from the object side, with one subunit moving to provide image stabilization.
- The rear lens group includes a focus lens unit that moves during focusing.
- The zoom lens meets certain predetermined inequalities.
Potential Applications
This technology can be used in various optical devices such as cameras, camcorders, and telescopes to provide improved zooming capabilities, image stabilization, and focusing.
Problems Solved
This technology solves the problem of achieving smooth zooming, stable images, and accurate focusing in optical devices.
Benefits
The benefits of this technology include enhanced image quality, improved user experience, and increased versatility in optical devices.
Potential Commercial Applications
The technology can be applied in consumer electronics, professional photography equipment, surveillance systems, and medical imaging devices.
Possible Prior Art
One possible prior art for this technology could be existing zoom lenses with image stabilization features, but the specific configuration of lens units described in this patent application may be unique.
Unanswered Questions
How does this technology compare to existing zoom lenses with image stabilization features in terms of performance and cost?
The article does not provide a direct comparison between this technology and existing zoom lenses with image stabilization features. Further research and testing would be needed to evaluate the performance and cost-effectiveness of this innovation.
What are the potential limitations or drawbacks of implementing this technology in optical devices?
The article does not address any potential limitations or drawbacks of implementing this technology in optical devices. Factors such as size, weight, power consumption, and compatibility with existing systems could be important considerations that need to be explored further.
Original Abstract Submitted
A zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a rear lens group including one or more lens units, which are disposed in this order from an object side to an image side, wherein a distance between adjacent lens units changes in zooming, wherein the first lens unit does not move and the second lens unit moves in zooming, wherein the second lens unit includes subunits Land Lhaving a positive refractive power, which are disposed in this order from the object side, wherein the subunit Lmoves to include a component in a direction perpendicular to an optical axis in image stabilization, wherein the rear lens group includes a focus lens unit that moves in focusing, and wherein the zoom lens satisfies predetermined inequalities.
