17985981. LENS APPARATUS AND IMAGE PICKUP APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
LENS APPARATUS AND IMAGE PICKUP APPARATUS
Organization Name
Inventor(s)
LENS APPARATUS AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 17985981 titled 'LENS APPARATUS AND IMAGE PICKUP APPARATUS
Simplified Explanation
The patent application describes a lens apparatus that consists of two optical systems. Each system includes several lens units and reflective surfaces. The distances between the lens units and reflective surfaces can be adjusted to change the magnification of the lens apparatus. This adjustment is made according to a predetermined condition.
- The lens apparatus includes two optical systems.
- Each optical system has a specific arrangement of lens units and reflective surfaces.
- The distances between the lens units and reflective surfaces can be changed to vary the magnification.
- The adjustment of distances is based on a predetermined condition.
Potential Applications
- Photography and videography equipment
- Microscopes and telescopes
- Medical imaging devices
- Surveillance cameras
Problems Solved
- Provides a lens apparatus with adjustable magnification
- Offers flexibility in capturing images or observing objects at different magnification levels
- Allows for easy adaptation to different imaging or observation requirements
Benefits
- Versatility in capturing or observing objects at various magnification levels
- Simplified adjustment process for changing the magnification
- Enhanced image quality and clarity due to the optimized optical system
Original Abstract Submitted
A lens apparatus includes two optical systems. Each of the two optical systems includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a first reflective surface, a second reflective surface, and a rear lens unit having positive refractive power. At least a distance between the first lens unit and the second lens unit and a distance between the second lens unit and the first reflective surface are changed during magnification variation. A predetermined condition is satisfied.
