Multiple-Focal-Point Lens Array for Depth Resolution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices face challenges in effectively capturing image data due to increased demands on system resources and data complexity, leading to inefficiencies and higher production costs.
Innovation Solution
Implementing a multiple-focal-point (MFP) lens array with lenses of different principal focal lengths in a 3×3 matrix configuration, where each lens captures a portion of the image and transmits light to a respective pixel block of a sensor, allowing for digital signal processing to generate a rendered final image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional single-lens system is used to capture image data, then the device structure remains simple, but the image quality and depth of field are limited
Solution Approach 1:
The patent divides a single lens system into multiple lenses arranged in an array, where each lens has a different focal length. This segmentation allows the system to capture images at multiple focal points simultaneously, improving image quality and depth of field while managing complexity through modular design
Solution Approach 2:
Each lens in the array is assigned a specific focal length tailored to capture particular depth planes. This local differentiation of optical properties enables the system to optimize image quality for different regions of the scene, with each lens contributing specialized imaging capabilities
2Adaptability or versatility
If multiple lenses with different focal lengths are used to improve depth of field, then the depth of field and image rendering improve, but the device complexity and processing requirements increase
Solution Approach 1:
The patent employs digital signal processing to dynamically combine images from multiple lenses with different focal lengths. This dynamic processing allows the system to adaptively render images at various depth planes and create extended depth of field effects, transforming static optical limitations into flexible digital solutions
Solution Approach 2:
The patent adds the dimension of focal length variation to the traditional single-lens system by arranging multiple lenses with different focal lengths in an array. This dimensional expansion enables simultaneous capture of multiple depth planes, transforming a two-dimensional image plane into a three-dimensional depth-resolved capture system
3Loss of information
If a lens array is implemented to capture multiple focal points, then the image data richness increases, but the system processing power and hardware resources required increase
Solution Approach 1:
The patent performs preliminary optical processing by using the lens array to pre-separate and capture different depth planes simultaneously. This preliminary action reduces the processing burden on digital systems by organizing image data in a structured manner before digital processing, allowing more efficient handling of the captured information
4Adaptability or versatility
If enhanced device capability is provided to perform advanced image operations, then user benefits increase, but control and management of device components becomes more difficult
Solution Approach 1:
The patent implements automated image processing algorithms that automatically select and combine the most appropriate lens images based on scene depth and focus requirements. This self-service approach allows the system to autonomously manage the complexity of multiple lenses, eliminating the need for manual control while maintaining enhanced imaging 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
This approach enables high-resolution, wide-angle image capture with improved depth of field and reduced light requirements, supporting enhanced image rendering and 3D imaging capabilities while reducing operational inefficiencies and production costs.
Implementation Method 1
Each lens in the MFP lens array transmits light to a different respective pixel block of a sensor
Data Source
AI summary
A system for implementing and utilizing a lens array in an electronic device includes a sensor array coupled to the electronic device for capturing image data corresponding to a photographic target. The lens array includes a plurality of lenses that each has a different respective principal focal length to transmit reflected light from the photographic target to the sensor array. The sensor array captures a set of MFP images that each corresponds with a respective one of the lenses in the MFP lens array. The electronic device may further include an image processor that performs one or more digital signal processing procedures on the captured MFP images to thereby generate a rendered final image.