18619272. ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME simplified abstract (CANON KABUSHIKI KAISHA)
Contents
ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME
Organization Name
Inventor(s)
Yoshiyuki Taki of Tochigi (JP)
ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME - A simplified explanation of the abstract
This abstract first appeared for US patent application 18619272 titled 'ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME
The abstract of this patent application describes a zoom lens with a first lens unit having negative refractive power followed by multiple subsequent lens units, along with an aperture stop. The first lens unit remains fixed while the subsequent units move to adjust the distance between them, satisfying specific conditions for optimal performance.
- Simplified Explanation:
- The patent application is for a zoom lens with a specific configuration of lens units and an aperture stop. - The first lens unit has negative refractive power and remains stationary, while the subsequent lens units can move to change the distance between them. - Certain conditions must be met for the zoom lens to function effectively.
- Key Features and Innovation:
- Zoom lens design with a fixed first lens unit and moving subsequent units. - Utilization of an aperture stop for improved performance. - Specific conditions and inequalities must be satisfied for optimal zooming capabilities.
- Potential Applications:
- Photography and videography equipment. - Surveillance systems. - Medical imaging devices.
- Problems Solved:
- Enhanced zooming capabilities. - Improved image quality. - Increased versatility in capturing different types of shots.
- Benefits:
- Clearer and sharper images. - Greater flexibility in adjusting focal length. - Enhanced overall performance of the zoom lens.
- Commercial Applications:
- Camera and lens manufacturing industry. - Security and surveillance technology companies. - Medical imaging equipment manufacturers.
- Questions about Zoom Lens Technology:
1. How does the design of the first lens unit with negative refractive power contribute to the overall performance of the zoom lens? 2. What specific conditions need to be met for the zoom lens to function optimally?
- Frequently Updated Research:
- Ongoing advancements in lens technology and materials. - Research on improving zoom lens 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 negative refractive power, and a plurality of subsequent lens units. The zoom lens further includes an aperture stop. For zooming, the first lens unit is fixed, and the plurality of subsequent lens units move to change a distance between adjacent lens units. Predetermined inequalities are satisfied.
