Multi-lens Camera Module with Reflective Members
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Solution Overview
Problem
Existing camera modules face challenges in improving image definition without increasing the size of the photosensitive chip, as methods like single-frame interpolation and multi-frame composition are limited by interpolation errors and pixel displacement issues.
Innovation Solution
A camera module design that includes a Bayer array sensor with a photosensitive chip, two lenses (first and second lenses) with the same field of view, and reflective members to fit the lenses to the chip. This setup generates two images with the same content but different filter processing results, which are then composited using a preset algorithm to increase real photosensitive pixels and improve image definition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to improve image definition, then image definition is improved, but photosensitivity of the camera module decreases
Solution Approach 1:
The patent transitions from a single-lens single-frame imaging approach to a multi-lens multi-frame composition approach. By adding temporal and spatial dimensions (multiple lenses capturing multiple frames), the system achieves higher effective pixel count and image definition without increasing the physical pixel density on the photosensitive chip, thus maintaining photosensitivity.
Solution Approach 2:
The patent merges multiple images captured by different lenses through image composition algorithms. By combining information from multiple frames with the same content, the system effectively increases the photosensitive pixel count and improves image definition while using the same physical photosensitive chip area.
2Measurement precision
If single-frame interpolation is used to improve image definition, then image definition is improved, but interpolation errors occur and definition improvement effect is limited
Solution Approach 1:
The patent uses multiple lenses to capture multiple copies of the same scene content. Instead of interpolating a single frame, the system captures actual multiple frames with the same content through different lenses, providing real data for composition and eliminating interpolation errors while improving definition.
3Measurement precision
If multi-frame composition is used to improve image definition, then image definition can be improved, but pixel displacement is difficult to control and image composition effect is poor
Solution Approach 1:
The patent applies different processing strategies to different parts of the image composition process. By using lenses with the same field of view, the system ensures that corresponding regions across multiple frames have consistent quality characteristics, making pixel alignment and composition more controllable and effective.
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 solution enhances image definition by increasing real photosensitive pixels in the composited image, leading to a better image presentation effect and improved final image quality and user experience.
Implementation Method 1
both the first lens and the second lens fit the photosensitive chip by using the plurality of reflective members
Implementation Method 2
a first image is generated through a first sub pixel region of the photosensitive chip based on light incident from the first lens
Data Source
AI summary
This application discloses an electronic device and a camera module thereof. The camera module includes a photosensitive chip, a first lens, a second lens, and a plurality of reflective members, where the photosensitive chip is a Bayer array sensor, the photosensitive chip includes a plurality of pixel regions arranged in rows and columns, each pixel region includes four sub pixel regions, fields of view of the first lens and the second lens are the same, and both the first lens and the second lens fit the photosensitive chip by using the plurality of reflective members; and a first image is generated through a first sub pixel region of the photosensitive chip based on light incident from the first lens, a second image is generated through a second sub pixel region of the photosensitive chip based on light incident from the second lens.