17854059. OPTICAL SYSTEM, OPTICAL APPARATUS, AND IMAGE PICKUP APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
OPTICAL SYSTEM, OPTICAL APPARATUS, AND IMAGE PICKUP APPARATUS
Organization Name
Inventor(s)
Tatsuro Watanabe of Tochigi (JP)
OPTICAL SYSTEM, OPTICAL APPARATUS, AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17854059 titled 'OPTICAL SYSTEM, OPTICAL APPARATUS, AND IMAGE PICKUP APPARATUS
Simplified Explanation
The abstract describes an optical system that consists of three units: a first unit that remains fixed during focusing, a second unit that moves during focusing, and a third unit that remains fixed on the image side of the second unit. The first unit includes a first optical element with a concave reflective surface facing the object side, and a second optical element with a convex reflective surface facing the image side. Light from an object enters the optical system, reflects off the first reflective surface, then reflects off the second reflective surface, and finally passes through the second unit. The system satisfies a predetermined inequality.
- The optical system has three units: a fixed first unit, a moving second unit, and a fixed third unit.
- The first unit includes a concave reflective surface facing the object side, while the second unit has a convex reflective surface facing the image side.
- Light from an object is reflected by the first reflective surface, then by the second reflective surface, and finally passes through the second unit.
- The system satisfies a predetermined inequality.
Potential Applications
- Photography and videography equipment
- Microscopes and telescopes
- Laser scanning and imaging systems
Problems Solved
- Improved focusing capabilities
- Enhanced image quality and clarity
- Increased flexibility in optical system design
Benefits
- Precise focusing of objects
- Reduction of optical aberrations
- Compact and lightweight design
- Versatile applications in various optical systems
Original Abstract Submitted
An optical system includes a first unit fixed during focusing, a second unit configured to move during focusing, and a third unit fixed during focusing on an image side of the second unit. The first unit includes a first optical element having a first reflective surface that has a concave shape toward an object side, and a second optical element having a second reflective surface that has a convex shape toward an image side. Light incident on the optical system from an object is reflected by the first reflective surface, thereafter is reflected by the second reflective surface, and thereafter passes through the second unit. A predetermined inequality is satisfied.
