IR stetches from 750 nm to 1 mm wavelength. How many kinds? This isn't science. There are as many divisions as you want to make. If your teacher thinks there are three kinds...what a waste of time!
Depending on what kind of infrared heater you want, there are many retailers that carry them. Home Depot has portable infrared heaters and infrared ceiling heaters. Safer Wholesale sells portable infrared heaters and patio infrared heaters.
Infrared. He saw body heat.
I'm wondering if there's some kind of glass/material that would let you see infrared light?
An infared one?
Infrared Heat.
Infrared radiation causes molecules to vibrate by interacting with their bonds and increasing their kinetic energy. This vibration results in an increase in temperature, which is why infrared radiation is often used in heat lamps and infrared saunas.
There are many companies that produce infrared sensors. Some companies include Photonics, Sofradir, Infatec, Optics, and many more infrared companies.
Both are light emitting diodes, but an infrared led emits infrared light in the electromagnetic spectrum. With the naked eye, humans can't see infrared light but many cameras can. Infrared leds are used in remote controls and many other applications.
Infrared laser sensors that can detect movement.
visible light, infrared rays, and microwaves
A thermographic camera is an infrared camera, which captures infrared radiaiton. So, while it captures information, it does not take the same kind of picture a regular camera does.
Advantages-Many things are controlled by infrared. sensors are invisible to the naked eye and are very reliable. Disadvantages- Most infrared sensors must be lined up or they will not work