The old laser printers used He-Ne laser , and the modern laser
printers use infrared laser .
View page
Infrared wave
View page
infrared color
View page
A laser thermometer is also often referred to as an infrared
thermometer. An infrared thermometer detects the temperature of and
object based on the amount of infrared radiation that is given off
by said object by focusing the radiation.
View page
LASER diodes operate at either infrared or visible wavelengths,
depending on its construction.