Insect Attraction Device Using Wavelength Contrast
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Solution Overview
Problem
Existing insect attraction devices do not provide a complete explanation for insect behavior when attracted to light sources, and they are not efficient in attracting insects compared to broad spectral range or monochromatic light sources.
Innovation Solution
An attraction device is designed to create a contrast using light of different wavelength regions, such as ultraviolet and green light, by using transparent or diffusing panels that transmit or emit specific wavelengths, or polarized lights with different polarization directions, to form edges that attract insects more effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mercury lamp or blue fluorescent lamp with broad spectral range is used to attract insects, then the attraction effectiveness is improved, but the device complexity and energy consumption increase
Solution Approach 1:
The patent divides the light spectrum into multiple discrete wavelength regions (ultraviolet around 350nm, blue around 450nm, green around 530nm) and uses separate LED light sources for each region. This segmentation allows selective activation of specific wavelength regions that correspond to insect visual sensitivity peaks, replacing the need for complex broad-spectrum mercury lamps or blue fluorescent lamps while maintaining effective insect attraction.
Solution Approach 2:
The patent applies local quality by creating distinct light emission zones with different wavelengths (ultraviolet, blue, green) at different spatial locations. Each wavelength region targets specific photoreceptors in insect compound eyes, providing localized spectral quality that matches insect visual sensitivity characteristics rather than using uniform broad-spectrum illumination.
2Productivity
If a mercury lamp or blue fluorescent lamp is used to attract insects, then the attraction effectiveness is improved, but the energy consumption increases
Solution Approach 1:
The patent segments the broad spectrum into discrete LED-based wavelength regions (ultraviolet, blue, green), allowing energy to be concentrated only at wavelengths where insects have high visual sensitivity. This eliminates energy waste in irrelevant spectral regions, reducing overall power consumption compared to mercury lamps or blue fluorescent lamps that emit across a broad spectrum including less effective wavelengths.
Solution Approach 2:
The patent changes the spectral parameter of the light source by switching from broad-spectrum mercury lamps or blue fluorescent lamps to multi-wavelength LED arrays with peak emissions at 350nm, 450nm, and 530nm. This parameter optimization aligns the light output with insect photoreceptor sensitivity peaks, achieving effective insect attraction with lower energy consumption.
3Productivity
If conventional light sources are used without considering wavelength contrast, then the device simplicity is maintained, but the attraction effectiveness decreases
Solution Approach 1:
The patent segments the light source into multiple independent LED modules emitting at different wavelengths (ultraviolet, blue, green), each corresponding to specific photoreceptor types in insect compound eyes. This segmentation creates wavelength contrast that exploits insect visual system characteristics, significantly improving attraction effectiveness compared to conventional single-color or broad-spectrum light sources.
Solution Approach 2:
The patent implements local quality by positioning LED light sources with different spectral characteristics (ultraviolet, blue, green) at different spatial locations to create a multi-wavelength contrast pattern. This spatial-spectral arrangement provides localized quality variations that enhance insect attraction by stimulating multiple photoreceptor types simultaneously, overcoming the limitations of uniform conventional lighting.
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 a higher attraction rate of insects compared to traditional light sources by utilizing the specific sensitivity of insect compound eyes to ultraviolet and green light, and polarized light, resulting in efficient insect capture.
Implementation Method 1
a first member which transmits light of the first wavelength region
Implementation Method 2
a second member which transmits light of the second wavelength region
Implementation Method 3
a first member which reflects the light of the first wavelength region
Implementation Method 4
a second member which reflects the light of the second wavelength region
Implementation Method 5
a first member which emits the light of the first wavelength region
Implementation Method 6
a second member which emits the light of the second wavelength region
Implementation Method 7
first and second diffuser panels which diffuse incoming light
Implementation Method 8
a first polarizing plate which transmits light oscillating in a first direction; and a second polarizing plate which transmits light oscillating in a second direction
Data Source
AI summary
By plates (31, 32) having different colors, an edge is formed in the vertical direction along the boundary between the plates (31, 32). Further, as materials of the plates (31, 32), a material which primarily transmits ultraviolet light having a wavelength of about 370 nm and a material which primarily transmits green light having a wavelength of about 520 nm are used. This constitution makes an attraction device (10) capable of attracting insect pests more efficiently as compared to a case where a light source such as a mercury lamp which emits a large amount of light having a wavelength of 300 to 600 nm or an LED which emits a large amount of light having a relatively short wavelength is used.