18605610. ZOOM LENS AND IMAGE PICKUP APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
ZOOM LENS AND IMAGE PICKUP APPARATUS
Organization Name
Inventor(s)
Shinichiro Saito of Tochigi (JP)
ZOOM LENS AND IMAGE PICKUP APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18605610 titled 'ZOOM LENS AND IMAGE PICKUP APPARATUS
The abstract describes a zoom lens with three lens units that move during zooming, resulting in changes in the distances between the units. The first unit consists of three or fewer lenses, while the second unit includes a negative spherical lens, a cemented lens, and another negative spherical lens.
- The zoom lens comprises three lens units with positive, negative, and positive refractive powers.
- The first lens unit moves during zooming, adjusting the distances between the lens units.
- The second lens unit includes a negative spherical lens, a cemented lens, and another negative spherical lens.
- The zoom lens satisfies predetermined conditions for optimal performance.
- The design allows for smooth transitions from wide-angle to telephoto settings.
Potential Applications: - Camera lenses - Surveillance systems - Microscopes - Telescopes
Problems Solved: - Maintaining image quality during zooming - Achieving consistent focus and clarity - Enhancing optical performance in various applications
Benefits: - Improved image quality - Versatile zoom capabilities - Enhanced optical performance - Precise focusing
Commercial Applications: Title: Advanced Zoom Lens Technology for Enhanced Imaging This technology can be used in various industries such as photography, surveillance, microscopy, and astronomy to improve image quality and optical performance. The market implications include increased demand for high-quality lenses in consumer electronics and professional equipment.
Prior Art: Research existing patents related to zoom lens technology, optical design, and lens unit configurations to understand the current state of the art in the field.
Frequently Updated Research: Stay informed about the latest advancements in zoom lens technology, optical design, and imaging systems to leverage cutting-edge innovations in your projects.
Questions about Zoom Lens Technology: 1. How does the design of the zoom lens impact image quality? 2. What are the key factors to consider when selecting a zoom lens for specific applications?
Original Abstract Submitted
A zoom lens includes, in order from an object side to an image side, first, second and third lens units having positive, negative and positive refractive powers. The first lens unit moves during zooming. During zooming from a wide-angle end to a telephoto end, a distance between the first and second lens units widens, and a distance between the second and third lens units narrows. The first lens unit consists of three or less lenses. The second lens unit consists of, in order from the object side to the image side, a first single lens as a spherical lens having a negative refractive power, a cemented lens in which a lens having a negative refractive power and a lens having a positive refractive power are cemented, and a second single lens as a spherical lens having a negative refractive power. A predetermined condition is satisfied.
