Final answer:
Exposure limit values for optical radiation depend on the specific wavelength range, as different wavelengths of optical radiation can have different effects on human health. These values are defined by organizations such as the ICNIRP and ACGIH and are based on scientific research and knowledge about the health effects of optical radiation.
Step-by-step explanation:
Exposure limit values for optical radiation depend on the specific wavelength range, as different wavelengths of optical radiation can have different effects on human health. For example, exposure to ultraviolet (UV) radiation can lead to skin damage and increase the risk of skin cancer. Therefore, exposure to UV radiation needs to be limited to protect human health.
The exposure limit values for optical radiation are typically defined by organizations such as the International Commission on Non-Ionizing Radiation Protection (ICNIRP) and the American Conference of Governmental Industrial Hygienists (ACGIH). These organizations establish exposure limits based on scientific research and knowledge about the health effects of optical radiation.
For example, the ICNIRP sets exposure limit values for different wavelengths of optical radiation, including infrared (IR), visible, and UV wavelengths. These values are expressed in terms of irradiance, which is the power of the radiation incident on a surface per unit area. The exposure limit values ensure that the irradiance levels do not exceed the values considered safe for human health.