18544530. ZOOM LENS, IMAGE PICKUP APPARATUS, AND IMAGE PICKUP SYSTEM WITH THE SAME simplified abstract (CANON KABUSHIKI KAISHA)
Contents
ZOOM LENS, IMAGE PICKUP APPARATUS, AND IMAGE PICKUP SYSTEM WITH THE SAME
Organization Name
Inventor(s)
Shinichiro Saito of Tochigi (JP)
ZOOM LENS, IMAGE PICKUP APPARATUS, AND IMAGE PICKUP SYSTEM WITH THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18544530 titled 'ZOOM LENS, IMAGE PICKUP APPARATUS, AND IMAGE PICKUP SYSTEM WITH THE SAME
The abstract of the patent application describes a zoom lens with a specific configuration of lens units that change positions during zooming, resulting in a unique optical design.
- The zoom lens consists of a first lens unit with positive refractive power, a front group with negative refractive power, and a rear group with an aperture stop.
- Each distance between adjacent lens units varies during zooming, allowing for adjustments in focal length.
- The first lens unit remains fixed relative to the image plane during focusing, ensuring image quality.
- At least four lens units move during zooming from wide-angle to telephoto, providing versatility in capturing different types of shots.
- The combined refractive power from the positive lens to the closest lens in the front group becomes negative at the telephoto end, enhancing optical performance.
Potential Applications: - Photography and videography equipment - Surveillance systems - Medical imaging devices
Problems Solved: - Improved optical performance throughout the zoom range - Enhanced image quality and sharpness - Versatile lens design for various shooting scenarios
Benefits: - Clear and sharp images at different focal lengths - Precise focusing capabilities - Versatility in capturing a wide range of subjects
Commercial Applications: Title: Advanced Zoom Lens Technology for Enhanced Imaging This technology can be utilized in professional cameras, camcorders, and other imaging devices to provide high-quality images and videos across different focal lengths. The market implications include increased demand for advanced optical systems in the photography and videography industries.
Questions about Zoom Lens Technology: 1. How does the unique configuration of lens units in this zoom lens improve optical performance?
- The specific arrangement of lens units allows for precise adjustments in focal length and enhances image quality throughout the zoom range.
2. What sets this zoom lens apart from traditional zoom lenses in terms of design and functionality?
- This zoom lens features a combination of lens units with varying refractive powers that work together to optimize optical performance and image quality.
Original Abstract Submitted
A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a front group including one or two lens unit and having a negative refractive power as a whole, and a rear group including an aperture stop and one or more lens unit. Each distance between adjacent lens units changes during zooming. The first lens unit is fixed relative to an image plane during focusing. The first lens unit includes a positive lens disposed closest to an object. At least four lens units move during zooming from a wide-angle end to a telephoto end. At the telephoto end, a combined refractive power from the positive lens to a lens disposed closest to an image in the front group is negative. A predetermined inequality is satisfied.
