The difference between infrared range finder and laser range finder
There are two types of laser ranging:
1) Red light laser ranging (also known as visible light ranging).
2) Infrared laser ranging.
Both are collectively referred to as laser ranging.
There is another ultrasonic range finder on the market, which is often pretended to be an infrared range finder or a laser range finder by sellers. Be careful not to be fooled.
The method to distinguish laser range finder from ultrasonic range finder is:
Laser range finders (whether red light or infrared light) have at least one optical lens, and some have two optical lenses, one large and one small.
The ultrasonic range finder does not have an optical lens, but has a piezoelectric ceramic piece.
