18515059. ZOOM LENS AND IMAGE PICKUP APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
- 1 ZOOM LENS AND IMAGE PICKUP APPARATUS
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 ZOOM LENS AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
ZOOM LENS AND IMAGE PICKUP APPARATUS
Organization Name
Inventor(s)
ZOOM LENS AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18515059 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, including a variable magnification unit that changes position from wide-angle to telephoto. The lens units have specific characteristics to meet dispersion ratio requirements.
- The zoom lens includes a fixed first lens unit and multiple moving lens units.
- The variable magnification unit within the moving lens units changes position from wide-angle to telephoto.
- Specific inequalities regarding dispersion ratios and lens characteristics are met within the variable magnification unit.
Potential Applications
This technology could be applied in:
- Photography lenses
- Surveillance cameras
- Microscopes
Problems Solved
This technology solves issues related to:
- Achieving variable magnification in zoom lenses
- Maintaining image quality while zooming
Benefits
The benefits of this technology include:
- Improved zoom capabilities
- Enhanced image quality
- Versatile applications in various optical devices
Potential Commercial Applications
Optimizing Zoom Lens Design for Enhanced Performance
Possible Prior Art
Prior art may include:
- Existing zoom lens designs
- Optical patents related to variable magnification units
Unanswered Questions
How does this technology compare to existing zoom lens designs?
This article does not provide a direct comparison to existing zoom lens designs.
What specific applications within surveillance cameras could benefit from this technology?
The article does not specify the potential applications within surveillance cameras that could benefit from 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.
