18272576. ZOOM OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM OPTICAL SYSTEM simplified abstract (Nikon Corporation)
Contents
ZOOM OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM OPTICAL SYSTEM
Organization Name
Inventor(s)
Tomoyuki Sashima of Tokyo (JP)
Takahiro Ishikawa of Kanagawa (JP)
ZOOM OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM OPTICAL SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18272576 titled 'ZOOM OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE ZOOM OPTICAL SYSTEM
The variable magnification optical system described in the patent application consists of a first lens group with negative refractive power and a rear group containing at least one lens group.
- The distances between adjacent lens groups change when altering the magnification.
- The rear group includes a final lens group with positive refractive power closest to the image side.
- The system must meet the condition 0.15<ft/fGE<0.60, where ft is the focal length of the system in a telephoto end state, and fGE is the focal length of the final lens group.
Potential Applications: - Camera lenses - Microscopes - Telescopes
Problems Solved: - Achieving variable magnification with changing distances between lens groups - Ensuring optical system meets specific conditions for performance
Benefits: - Enhanced magnification capabilities - Improved image quality - Versatile applications in various optical devices
Commercial Applications: Title: "Innovative Variable Magnification Optical System for Enhanced Imaging" This technology can be utilized in the development of high-quality camera lenses, microscopes, and telescopes, catering to professionals and enthusiasts in photography, science, and astronomy fields.
Questions about the Variable Magnification Optical System: 1. How does the variable magnification optical system improve image quality?
- The system's design allows for precise control over magnification levels, resulting in sharper and clearer images.
2. What are the key differences between this variable magnification optical system and traditional optical systems?
- This system offers the flexibility to change magnification levels by adjusting the distances between lens groups, providing more versatility in optical devices.
Original Abstract Submitted
A variable magnification optical system (ZL) comprises: a first lens group (G) having negative refractive power; and a rear group (GR) including at least one lens group. When changing the magnification, the distances between adjacent lens groups change. At least one lens group of the rear group (GR) includes a final lens group (GE) having positive refractive power and disposed closest to the image side in the rear group (GR). The variable magnification optical system satisfies the following conditional expression. 0.15<ft/fGE<0.60 where ft is the focal length of the variable magnification optical system (ZL) in a telephoto end state, and fGE is the focal length of the final lens group (GE).
