Hybrid Multispectral Layout for Wider Wavelength Selection
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Solution Overview
Problem
Existing multispectral devices face limitations in the selection of wavelength ranges due to material constraints and require high spectral resolution, which is not adequately addressed by prior technologies.
Innovation Solution
A hybrid multispectral device is designed with a substrate having first and second functional elements arranged in lateral regions, allowing light of different wavelength ranges to be detected or emitted simultaneously without passing through each other's functional layers, thereby enhancing spectral resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If functional layers are arranged in a stacked configuration on top of each other, then a high degree of filling and large number of sensor elements per area can be achieved, but the selection of wavelength ranges is limited due to material constraints and transparency requirements
Solution Approach 1:
The patent transitions from a vertical stacking arrangement to a lateral arrangement of functional elements on the substrate surface. This dimensional change allows multiple functional elements with different wavelength sensitivities to coexist without requiring vertical transparency, thereby expanding the selectable wavelength ranges while maintaining high sensor density.
Solution Approach 2:
The substrate surface is divided into multiple lateral regions, each containing functional elements optimized for specific wavelength ranges. This segmentation allows independent optimization of each region for different spectral characteristics without interfering with other wavelength ranges, resolving the material transparency constraints.
2Device complexity
If functional layers are arranged in a stacked configuration, then space utilization is improved, but spectral resolution is limited
Solution Approach 1:
By arranging functional elements laterally rather than vertically, the patent enables each element to capture light from its specific lateral region without interference from overlying layers. This spatial separation in the lateral dimension enhances spectral resolution while maintaining efficient space utilization through compact substrate integration.
3Stability of the object's composition
If the first functional layer and substrate are made transparent to light in the second wavelength range, then stacked arrangement is enabled, but material selection and spectral range flexibility are constrained
Solution Approach 1:
The patent eliminates the need for vertical transparency by moving functional elements to lateral arrangements on the substrate surface. This allows substrate and functional layer materials to be selected based on their intrinsic properties for specific wavelength detection without requiring transparency to other wavelength ranges, thereby expanding spectral flexibility.
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 device achieves simultaneous detection and emission of light in two different wavelength ranges with improved spectral resolution, allowing for more precise light management and analysis.
Implementation Method 1
a first functional layer suitable for detecting or emitting light of a first wavelength range
Implementation Method 2
a second functional layer operable to detect or emit light of a second wavelength range
Implementation Method 3
The substrate and, if applicable, further layers of the second functional element act as optical filters which reflect or absorb certain wavelength components of the incident light due to their optical properties
Implementation Method 4
The substrate and, if applicable, further layers of the second functional element act as optical filters which reflect or absorb certain wavelength components of the incident light
Data Source
AI summary
The invention concerns a hybrid multispectral device comprising a substrate having a first surface and a second surface, at least one first functional element having a first functional layer operable to detect or emit light of a first wavelength range, and at least one second functional element having a second functional layer operable to detect or emit light of a second wavelength range different from the first wavelength range. The first functional element is arranged on the first surface of the substrate, while the second functional element is arranged on the second surface of the substrate. The first functional element is arranged in a first lateral region of the multispectral device, and the second functional element is arranged in a second lateral region of the multispectral device. The first lateral region and the second lateral region are arranged laterally offset from each other such that the light of the second wavelength region reaches the second functional element or the light of the second wavelength region emitted from the second functional element exits the multispectral device on the first surface of the substrate without having passed through the first functional layer.