4K Panoramic Annular Optical System Lens Configuration
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Solution Overview
Problem
Panoramic annular imaging systems face challenges in achieving high resolution and large field of view due to limited image plane constraints, resulting in low-resolution images with poor local details, especially with the advent of faster information processing requirements.
Innovation Solution
A 4K high-resolution panoramic annular optical system comprising a panoramic annular lens head unit and a subsequent lens group coaxially installed with a 4K sensor, featuring specific lens configurations and surface arrangements to refract and reflect light effectively onto the sensor, eliminating the need for post-image stitching or processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a panoramic annular lens is used to image a super-large field of view onto a limited image plane, then the field of view is enlarged, but the resolution becomes low and local details are lost
Solution Approach 1:
The optical system is divided into multiple lens groups (first lens group PAL, second lens group RL) with each group containing specific lenses (PAL1, PAL2, RL1-RL7) that work together to differentially process light rays from different field angles, enabling high-resolution imaging across the entire panoramic field of view
Solution Approach 2:
Different regions of the optical system are designed with different optical properties - the first lens group PAL handles the annular field of view with specific refractive characteristics, while the second lens group RL provides complementary optical power distribution, ensuring each region contributes optimally to overall image quality and resolution
2Measurement precision
If a lens with large field of view is used with high-resolution sensor, then both large field of view and high resolution can be achieved, but the optical system complexity increases
Solution Approach 1:
Multiple lens elements (PAL1, PAL2, RL1-RL7) are combined into integrated lens groups that function as unified optical units, reducing the overall system complexity while achieving the required 4K resolution and panoramic field of view performance
3Measurement precision
If post-image stitching or image processing methods are used to achieve large field of view and high resolution, then the resolution requirement can be met, but the processing time and computational resources increase
Solution Approach 1:
The optical system performs the high-resolution imaging function directly at the optical level before the image reaches the sensor, eliminating the need for subsequent post-processing or stitching operations, thereby reducing processing time and enabling real-time panoramic imaging
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 system achieves a field of view of 30° to 100° × 360° with a visible light resolution of 24.3 million pixels, providing high-quality, high-resolution images that meet 4K HD requirements without additional image processing.
Implementation Method 1
light is refracted and incident from the front transmission surface A1, reflected by the reflection surface A3 to the front reflection surface A6, reflected by the front reflection surface A6, and then refracted and emergent from the rear transmission surface A8
Implementation Method 2
reflected by the reflection surface A3 to the front reflection surface A6, reflected by the front reflection surface A6
Implementation Method 3
the emergent light is converged on the 4K sensor SE through the subsequent lens group
Data Source
AI summary
A 4K high-resolution panoramic annular optical system includes a panoramic annular lens head unit, a subsequent lens group, and a 4K sensor (SE) that is coaxially installed. The panoramic annular lens head unit includes a first lens (PALIPAL1) and a second lens (PAL2). The subsequent lens group includes a third lens (RL1), a fourth lens (RL2), a fifth lens (RL3), a sixth lens (RL4), a seventh lens (RL5), an eighth lens (RL6), and a ninth lens (RL7) that are arranged in order from an object plane to an image plane. The first lens (PAL1) and the fifth lens (RL3) are meniscus glass lenses with positive refractive power. The six lens (RL4) and the ninth lens (RL7) are meniscus glass lenses with negative refractive power, and the second lens (PAL2), the fourth lens (RL2), the seventh lens (RL5), and the eighth lens (RL6) are biconvex lenses with positive refractive power.