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Light field camera

Type of camera that can also capture the direction of travel of light rays / From Wikipedia, the free encyclopedia

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A light field camera, also known as a plenoptic camera, is a camera that captures information about the light field emanating from a scene; that is, the intensity of light in a scene, and also the precise direction that the light rays are traveling in space. This contrasts with conventional cameras, which record only light intensity at various wavelengths.

Lytro_Illum_Camera.jpg
Lytro Illum 2nd generation light field camera
Lytro_light_field_camera_-_front_and_back.jpg
Front and back of a Lytro, the first consumer light field camera, showing the front lens and LCD touchscreen

One type uses an array of micro-lenses placed in front of an otherwise conventional image sensor to sense intensity, color, and directional information. Multi-camera arrays are another type. Holograms are a type of film-based light field image.