Department of Physics and Materials Science

Infrared Camera

Visible light is an example of electromagnetic radiation (discussed more in the Transverse Waves display behind you), but it only makes up a small part of the overall electromagnetic spectrum (see above).

In particular, we cannot see infrared radiation, as it has a lower frequency than what our eyes can detect. You may be surprised to learn that our bodies (and most other things) produce a significant amount of infrared radiation. We cannot see it, but our skin feels it as warmth! This camear is not detecting  temperatuer directly,  but this "invisible light."

It converts it into a visible color, indicating where the infrared radiation is coming from. More comes from orange spots, less from purple spots