Camera, the general term:
The term camera is also used, for devices producing images or image sequences from measurements of the physical world, or when the image formation cannot be described as photographic:
- Acoustic camera which makes sound visible in three dimensions
- Gamma camera
- Magnetic resonance imaging which produce images showing, internal structure of different parts of a patient's body.
- Rangefinder camera which produce images of the distance to each point in the scene.
- Ultrasonography uses ultrasonic cameras that produce images of the absorption of ultra-sonic energy.
- Virtual camera, in computing and gaming.