Sensor Array Light Receiver for Wide-Angle Spatial Signal Detection
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Solution Overview
Problem
Existing light receiving devices have limited light receiving angles and efficiencies, making it difficult to determine the incoming direction of spatial light signals and communicate effectively with multiple targets.
Innovation Solution
A light receiving device comprising a lens, a sensor array with multiple light receivers, and a reception unit that integrates electric signals from the light receivers to select the appropriate receiver based on voltage values, enabling efficient reception of spatial light signals from various directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a band pass filter is used to filter only a wavelength of incident light perpendicularly incident on a filter surface, then the light receiving device can filter specific wavelengths, but the light receiving angle becomes small and light receiving efficiency decreases
Solution Approach 1:
The patent divides the light receiving function into multiple light receivers arranged in an array, with each receiver handling a specific spatial sector. This segmentation allows the system to maintain wide-angle reception while each individual receiver can use narrow-band filtering, resolving the contradiction between filtering precision and overall light receiving efficiency
Solution Approach 2:
The patent transitions from a single-point light receiver to a two-dimensional array of light receivers. This dimensional expansion enables the system to receive light from multiple directions simultaneously, overcoming the limitation of small light receiving angles while maintaining wavelength filtering capabilities through each receiver
2Device complexity
If a single light receiver is used, then the device structure is simple, but the incoming direction of light signals cannot be determined and communication with multiple targets is limited
Solution Approach 1:
The light receiving function is segmented into multiple independent light receivers arranged in specific spatial positions. Each receiver detects light from its designated sector, enabling direction determination through spatial distribution while keeping each individual receiver structurally simple
Solution Approach 2:
The array of light receivers serves multiple functions simultaneously: detecting light intensity, determining incoming direction through spatial distribution, and enabling communication with multiple targets. This multi-functionality increases adaptability without significantly increasing individual receiver complexity
3Measurement precision
If an optical sensor with annularly arranged light receivers is used for proximity sensing, then the moving direction of nearby objects can be detected, but the device cannot detect spatial light signals from far away due to disturbance light
Solution Approach 1:
Each light receiver in the array is assigned a specific spatial sector or field of view, creating local quality differences in the detection coverage. This allows the system to focus detection resources on specific directions, improving signal-to-noise ratio for distant targets by reducing disturbance light from other directions
Solution Approach 2:
The patent expands from a single-plane annular arrangement to a three-dimensional spatial distribution of light receivers. This dimensional expansion enables better separation of spatial frequencies and improved ability to distinguish distant spatial light signals from nearby disturbance light through spatial filtering
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 efficiently receives spatial light signals from multiple directions, allowing for simultaneous communication with multiple targets, and improves light utilization efficiency by receiving signals at a wide angle.
Implementation Method 1
a lens 12 that collects a spatial light signal
Implementation Method 2
a sensor array 11 including a plurality of light receivers 110 that receives the spatial light signal collected by the lens 12
Data Source
AI summary
A light receiving device that includes a lens that collects a spatial light signal, a sensor array including a plurality of light receivers that receives the spatial light signal collected by the lens, and a reception unit that integrates an electric signal derived from the spatial light signal received by each of the plurality of light receivers and selects a light receiver that receives the spatial light signal. according to a voltage value of the integrated electric signal.