Six-Lens Optical System for High Light Admission in Compact Cameras
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional optical image capturing systems in portable electronic devices fail to meet the requirements of high imaging quality due to limitations in admitting sufficient light, especially with higher pixel counts and advanced photography functionalities like micro filming and night viewing.
Innovation Solution
The use of a six-piece optical image capturing system with specific refractive powers and surface geometries, including convex and concave surfaces, to increase light admission and improve image quality, while maintaining a compact design suitable for minimized electronic products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional four-piece or five-piece lens design is used, then device complexity is reduced, but light admission is insufficient and image quality deteriorates
Solution Approach 1:
The optical system is divided into six separate lens elements instead of four or five, with each element having specific refractive power and surface geometry. This segmentation allows each lens element to contribute to light gathering and image formation, thereby increasing overall light admission and improving image quality while managing system complexity through modular design
Solution Approach 2:
Each of the six lens elements serves multiple functions: refracting light, correcting optical aberrations, and contributing to the overall focal length. The combination of positive and negative refractive powers in different elements creates a multi-functional system that simultaneously achieves high light admission and excellent image quality
2Illumination intensity
If aperture is increased for micro filming and night view, then light admission improves, but device size increases
Solution Approach 1:
The patent optimizes parameters including the refractive powers of individual lens elements, the ratios of focal lengths between elements, and the geometric shapes of lens surfaces. These parameter changes enable the system to achieve high light admission equivalent to larger apertures while maintaining a compact overall device size suitable for portable electronics
Solution Approach 2:
The lens elements feature specifically designed convex and concave surfaces with optimized curvatures. These curved geometries are engineered to maximize light gathering efficiency and control light paths, allowing the system to achieve high illumination performance in a compact form factor
3Quantity of substance
If pixel size is minimized for high pixels, then device compactness improves, but light admission per pixel decreases
Solution Approach 1:
The six-piece lens design segments the optical system into multiple elements that work together to gather and focus light efficiently. This segmentation allows the system to direct sufficient light onto small high-resolution sensors, maintaining image quality despite minimized pixel sizes and compact device dimensions
Solution Approach 2:
Different lens elements have locally optimized properties including varying refractive powers and surface geometries. This local quality optimization ensures that light is efficiently directed to each region of the image sensor, maintaining uniform illumination across high-resolution sensors with minimized pixel pitches
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
Enhances light admission and image quality, effectively addressing the limitations of traditional systems by optimizing the refractive powers and surface geometries of the optical lenses, thereby improving the performance of portable electronic device cameras.
Implementation Method 1
use combination of refractive powers, convex and concave surfaces of six-piece optical lenses to increase the amount of light admitted into the optical image capturing system
Data Source
AI summary
A six-piece optical lens for capturing image and a six-piece optical module for capturing image are provided. In the order from an object side to an image side, the optical lens along the optical axis includes a first lens element with refractive power, a second lens element with refractive power, a third lens element with refractive power, a fourth lens element with refractive power, a fifth lens element with refractive power and a sixth element lens with refractive power. At least one of the image-side surface and object-side surface of each of the six lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.