18626407. OPTICAL SYSTEM, IMAGE PICKUP APPARATUS, AND LENS APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
OPTICAL SYSTEM, IMAGE PICKUP APPARATUS, AND LENS APPARATUS
Organization Name
Inventor(s)
Takahiro Komiyama of Tochigi (JP)
OPTICAL SYSTEM, IMAGE PICKUP APPARATUS, AND LENS APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18626407 titled 'OPTICAL SYSTEM, IMAGE PICKUP APPARATUS, AND LENS APPARATUS
The optical system described in the patent application consists of a series of lenses with specific refractive powers and surface characteristics.
- The system includes a first lens with negative refractive power, a second lens with positive refractive power, a third lens with positive refractive power, and a fourth lens with negative refractive power.
- The first lens has an aspheric surface on the object side, with a curvature that increases from the central portion to the peripheral portion.
- The system satisfies predetermined inequalities to achieve the desired optical performance.
Potential Applications: This optical system could be used in various imaging devices such as cameras, telescopes, microscopes, and other optical instruments where precise control of light rays is essential.
Problems Solved: The optical system addresses the challenge of aberrations and distortions in imaging systems by optimizing the curvature of the lenses to improve image quality.
Benefits: The system offers improved image quality, reduced aberrations, and enhanced overall optical performance compared to traditional lens configurations.
Commercial Applications: This technology could be valuable in the manufacturing of high-quality lenses for consumer electronics, medical devices, scientific instruments, and other industries requiring advanced optical systems.
Questions about the Optical System: 1. How does the aspheric surface of the first lens contribute to the overall performance of the optical system? 2. What specific advantages does the combination of lenses with negative and positive refractive powers offer in terms of image quality and aberration correction?
Original Abstract Submitted
An optical system includes, in order from an object side to an image side, a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power. A first lens surface on the object side of the first lens is aspheric, and the first lens surface has an area in which a curvature that is convex toward the object side increases from a central portion to a peripheral portion. Predetermined inequalities are satisfied.
