Design of blue light visual damage detection system
- Questioz Editor
- 5 days ago
- 1 min read
Liangduo Li
ABSTRACT
Blue light is an important environmental factor in people's daily lives. The main ways that people are exposed to blue light are daylight, mobile phones, computers, televisions, and so on. Blue light is the most dangerous visible light because too much exposure to it will increase the amount of toxins in the macular area of the eye, seriously threatening the health of our eyes. Therefore, it is necessary to design and make an affordable and convenient device that can help detect blue light and alert us when the damage reaches a specific threshold. This project uses a band-pass filter to filter out the visible light except blue light components. The collection circuit is made according to the working principle of photoresistor. An ESP8266 chip is used to convert the collected voltage into digital quantity that can be transmitted wirelessly, and then it is transmitted wirelessly to the mobile app. The app is developed for mobile devices to display cumulative exposure and raise an alert if above a threshold. Compared with professional blue light detection equipment, this system has the relative advantages of low price, small size, portability, and ease of secondary development, which provides a good solution for protecting our fundus safety.
Keywords: Blue light detection, Visual injury, Mobile APP, Wireless transmission
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