Zoom Lens Aspherical Aberration Correction

The patent changes the optical parameters of the lens system by introducing specific aspherical surfaces with controlled curvature radii and optimizing the Abbe's number of lens elements. These parameter modifications enable the lens to maintain proper optical performance across both visible and near infrared light regions, resolving the chromatic aberration issue that plagues conventional visible-light-optimized lenses.

The patent employs a composite lens structure combining multiple lens elements with different optical properties, including aspherical surfaces and specific glass materials with optimized Abbe's numbers. This composite approach allows the lens system to correct chromatic aberration in the near infrared region while maintaining visible light performance.

The patent utilizes aspherical surfaces instead of traditional spherical or planar lens surfaces. These aspherical elements can correct optical aberrations more effectively while requiring less glass material and having a more compact structure, thus achieving high brightness with reduced complexity.

By optimizing parameters such as the curvature radii of aspherical surfaces and the Abbe's number of lens elements, the patent achieves effective aberration correction with a more compact lens structure, reducing the need for increased aperture size to achieve adequate brightness.

The patent employs aspherical surfaces that provide superior aberration correction compared to traditional spherical surfaces, achieving better optical performance in a more compact lens structure. The aspherical geometry allows for more efficient light path management and aberration control without requiring additional lens elements.

The patent optimizes critical parameters including the curvature radii of aspherical surfaces and the Abbe's number of lens elements to achieve effective aberration correction with minimal lens structure, thus reducing overall lens size while maintaining high optical performance.