Canon kabushiki kaisha (20240219696). ZOOM LENS AND IMAGE PICKUP APPARATUS simplified abstract
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 20240219696 titled 'ZOOM LENS AND IMAGE PICKUP APPARATUS
The abstract describes a zoom lens with three lens units that have positive, negative, and positive refractive powers, respectively. The first lens unit moves during zooming, with the distance between the first and second lens units widening as the zoom progresses from wide-angle to telephoto, while the distance between the second and third lens units narrows. The first lens unit consists of three or fewer lenses, and the second lens unit includes a negative power spherical lens, a cemented lens with negative and positive powers, and another negative power spherical lens.
- The zoom lens includes three lens units with different refractive powers.
- The first lens unit moves to adjust the zoom level.
- The distances between the lens units change during zooming.
- The first lens unit has a limited number of lenses.
- The second lens unit consists of specific types of lenses in a particular order.
Potential Applications: - Photography equipment - Surveillance systems - Medical imaging devices
Problems Solved: - Achieving variable focal lengths - Maintaining image quality during zooming
Benefits: - Improved zoom capabilities - Enhanced image quality - Versatile applications in various industries
Commercial Applications: Title: Advanced Zoom Lens Technology for Enhanced Imaging Solutions This technology can be used in cameras, telescopes, and other optical devices to provide superior zoom capabilities and image quality, catering to professionals in photography, surveillance, and medical fields.
Questions about Zoom Lens Technology: 1. How does the movement of the first lens unit impact the zooming process? 2. What are the specific advantages of using a zoom lens with multiple lens units?
Frequently Updated Research: Stay updated on the latest advancements in zoom lens technology to ensure optimal performance and image quality in various 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.
