Photosensitive Detection Element for Multi-Wavelength Spectra
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional photosensitive sensors are ineffective in simultaneously detecting a wide range of light spectra, requiring multiple sensors and multiple openings, leading to high costs and imperfect designs, as they are sensitive to specific wavelengths and fail to accurately detect ambient light across different times of day and invisible light.
Innovation Solution
A single device with multiple photosensitive chips, each covered by spectral filtering layers, allowing light of specific wavelengths to pass through, enabling detection of various spectra ranges without the need for multiple sensors or openings, reducing material costs and PCB space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple photosensitive sensors are used to detect different wavelength spectra, then the detection capability for various wavelengths is improved, but the device complexity and cost increase
Solution Approach 1:
The patent combines multiple photosensitive sensors with different spectral response characteristics into a single integrated detection device. Each sensor is equipped with specific optical filters to enable simultaneous detection of different wavelength ranges (visible light, ultraviolet, infrared) through a unified structure, thereby reducing the need for multiple separate sensors and openings.
Solution Approach 2:
The detection device is designed with multi-functional capability to detect various wavelength spectra simultaneously. By integrating multiple photosensitive sensors with different spectral sensitivities and combining them with appropriate optical filters, a single device can perform multiple detection functions that would otherwise require separate dedicated sensors.
2Measurement precision
If multiple photosensitive sensors are used to detect different wavelength spectra, then the detection accuracy for various wavelengths is improved, but the material cost and PCB space increase
Solution Approach 1:
The patent merges multiple photosensitive sensors into a single integrated module, reducing the total quantity of components required. This consolidation decreases both the material cost associated with purchasing multiple separate sensors and the PCB space needed to accommodate them, while maintaining the capability to detect different wavelength ranges with appropriate precision.
3Measurement precision
If conventional photosensitive sensors are used, then the detection of specific wavelength ranges is accurate, but the detection of ambient light across different times of day is inconsistent
Solution Approach 1:
The detection device is designed with multi-functional capability to detect various wavelength spectra simultaneously, including visible light, ultraviolet, and infrared ranges. This allows the device to adapt to different ambient lighting conditions throughout the day and maintain consistent detection performance across varying environmental conditions.
Solution Approach 2:
The patent employs optical filters with specific transmission characteristics to modify the spectral parameters of light reaching each photosensitive sensor. By carefully selecting filter properties, the system optimizes the detection response for different wavelength ranges, enabling consistent and accurate detection across varying ambient light conditions and times of day.
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
Enables simultaneous detection of different wavelengths with a single device, reducing costs and improving design aesthetics while maintaining accurate ambient light detection across various conditions.
Implementation Method 1
respective spectral filtering layers for allowing light with corresponding wavelengths in the spectra to pass through
Implementation Method 2
Photoelectric sensors, which convert optical signals into electrical signals by means of photosensitive elements
Data Source
Figure 1
AI summary
A photosensitive detecting device capable of simultaneously detecting spectra of different wavelengths comprises a first photosensitive chip (3) covered by a first spectral filtering layer (2), the first spectral filtering layer (2) allowing a light with a wavelength in a first range to pass through in response to a reception from the first photosensitive chip (3), and a second photosensitive chip (6) covered by a second spectral filtering layer (5), the second spectral filtering layer (5) allowing a light with a wavelength in a second range to pass through in response to a reception from the second photosensitive chip (6). The photosensitive detecting device has an advantage of simultaneously detecting various spectra of different wavelengths by one independent device.