Six-Lens Camera Group for Large Image Surface and Wide Angle
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Solution Overview
Problem
Conventional wide-angle lenses in portable electronic devices face challenges in miniaturization while maintaining a large image surface and high image quality.
Innovation Solution
A camera lens group comprising six lenses, with specific refractive powers and surface types, is designed to overcome the challenges of miniaturization, large image surface, and high image quality. The lenses are arranged sequentially along the optical axis, with a diaphragm optionally included between the second and third lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional wide-angle lens is used, then a wide field of view is achieved, but the image surface is not large
Solution Approach 1:
The lens system is divided into six distinct lens elements with specific refractive powers and surface configurations. Each lens element contributes to different aspects of the optical performance, allowing the system to achieve both large image surface and wide angle of view simultaneously through coordinated design of multiple segmented components.
2Length of moving object
If the lens is miniaturized for light and thin design, then the portable electronic product becomes thinner, but the image quality and large image surface capability are compromised
Solution Approach 1:
The patent employs precise control of optical parameters including refractive indices, curvature radii, thicknesses, and spacing between lens elements. By optimizing these parameters within tight ranges, the system achieves miniaturization while maintaining high image quality and large image surface capability, resolving the contradiction between thin form factor and optical performance.
3Reliability
If multi-lens cameras are used to improve shooting effect, then the camera function is enhanced, but the device complexity increases
Solution Approach 1:
The six-lens group is designed to perform multiple functions within a single integrated structure. The lenses collectively provide wide-angle imaging, large image surface coverage, aberration correction, and compact form factor, eliminating the need for separate lens modules and reducing overall system complexity while enhancing shooting capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The camera lens group achieves a balance of miniaturization, large image surface, and high image quality, supporting a wide angle and great depth of field, while being suitable for integration into ultra-thin portable electronic products.
Implementation Method 1
a first lens with a refractive power, wherein an object-side surface thereof is a concave surface, while an image-side surface is a convex surface; a second lens with a refractive power
Data Source
AI summary
A camera lens group sequentially includes, from an object side to an image side along an optical axis: a first lens (E1) with a refractive power, wherein an object-side surface (S1) thereof is a concave surface, while an image-side surface (S2) is a convex surface; a second lens (E2) with a refractive power, wherein an object-side surface (S3) is a convex surface, while an image-side surface (S4) is a concave surface; a third lens (E3) with a positive refractive power; a fourth lens (E4) with a refractive power; a fifth lens (E5) with a positive refractive power, wherein an object-side surface (S9) thereof is a concave surface, while an image-side surface (S10) is a convex surface; and a sixth lens (E6) with a negative refractive power, wherein an object-side surface (S11) thereof is a convex surface, while an image-side surface (S12) is a concave surface. A half ImgH of a diagonal length of an effective pixel region on an imaging surface (S15) of the camera lens group meets ImgH>4.60 mm.