Is infrared radiation from cameras harmful to the human body?
May 16, 2023
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
Infrared light from cameras is generally harmless to the human body, as longer wavelengths carry less radiation and are relatively safe. However, prolonged exposure may irritate the skin, and extended contact with the eyes can cause burns to the cornea and iris. It is advisable to avoid direct exposure to infrared light, take protective measures, and minimize potential harm to the body.
Under normal circumstances, the infrared light from cameras does not harm the human body. However, prolonged exposure may cause minor injuries. The detailed analysis is as follows:
1. No harm
Infrared light in cameras is used to detect surroundings and enable night vision. Typically, infrared light has relatively long wavelengths, which are almost invisible to the naked eye. The longer the wavelength, the lower the radiation it carries. The visible range corresponds only to the area illuminated by the infrared light, thus posing no harm to humans.
2. Potential harm
Infrared light emits relatively high heat. Prolonged exposure may cause the infrared wavelengths to irritate the skin, leading to burns, damage to hair follicles, and symptoms such as redness, swelling, and pain. If the eyes are exposed for extended periods, intense light waves may directly irritate the eyeball, causing corneal and iris burns, potentially reducing vision and resulting in blurred eyesight.
In daily life, direct exposure to infrared light should be avoided, and proper protective measures should be taken to minimize potential health risks.
