Secondary Freeform Lens Device Design with Stearic Acid for A Low-Glare Mosquito-Trapping System with Ultraviolet Light-Emitting Diodes

Dengue fever is a public health issue of global concern. Taiwan is located in the subtropical region featuring humid and warm weather, which is conducive to the breeding of mosquitoes and flies. Together with global warming and the increasing frequency of international exchanges, in addition to the...

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Bibliographic Details
Published in:Electronics (Basel) 2019-06, Vol.8 (6), p.624
Main Authors: Tseng, Wei-Hsiung, Hsiao, Wei-Cheng, Juan, Diana, Chan, Cheng-Han, Hsiao, Wen-Sheng, Ma, Hsin-Yi, Lee, Hsiao-Yi
Format: Article
Language:English
Subjects:
Acids
Dengue fever
Design
Efficiency
Experiments
Free form
Lenses
Light emitting diodes
Mosquitoes
Polymethyl methacrylate
Public health
Software
Stearic acid
Trapping
Tropical diseases
Ultraviolet radiation
Vaccines
Viral diseases
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Summary:Dengue fever is a public health issue of global concern. Taiwan is located in the subtropical region featuring humid and warm weather, which is conducive to the breeding of mosquitoes and flies. Together with global warming and the increasing frequency of international exchanges, in addition to the outbreak of pandemics and dengue fever, the number of people infected has increased rapidly. This study is dedicated to the development of a new mosquito-trapping system. Research has shown that specific wavelengths, colors, and temperatures are highly attractive to both Aedes aegypti and Aedes albopictus. In this study, we create equipment which effectively improves the trapping capabilities of mosquitoes in a wider field. The design of the special Secondary Freeform Lens Device (SFLD) is used to expand the range for trapping mosquitoes and create illumination uniformity; it also directs light downward for the protection of users’ eyes. In addition, we use the correct amount of stearic acid as a mosquito attractant to allow a better control effect against mosquitoes during the day. In summary, when the UV LED mosquito trapping system is combined with a quadratic free-form lens, the experimental results show that the system can extend the capture range to 100 π m2 in which the number of captured mosquitoes is increased by about 350%.
ISSN:2079-9292
2079-9292
DOI:10.3390/electronics8060624