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Basic Camera Function

Basic Camera Function

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Basic Camera Function

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Presentation Transcript

  1. Basic Camera Function • The camera converts an optical image into electrical signals that are reconverted by a television receiver into visible screen images.

  2. To do this, the camera needs: • Lens • Camera body • Viewfinder

  3. The Basics • A typical analog camcorder contains two basic parts: • A camera section, consisting of a CCD, lens and motors to handle the zoom, focus and aperture • A VCR section, in which a typical TV VCR is shrunk down to fit in a much smaller space.

  4. The Basics • The camera component's function is to receive visual information and interpret it as an electronic video signal. • The VCR component is exactly like the VCR connected to your television: It receives an electronic video signal and records it on video tape as magnetic patterns

  5. LENS • Selects portion of scene at which you point the camera & produces a sharp optical image of it.

  6. Camera • Camera contains a beam splitter (imaging device) which converts optical image from lens into electrical signals.

  7. Viewfinder • Reconverts electrical signals into video pictures of the lens generated scene.

  8. Camera Function • Light is reflected off object

  9. Camera Function • Light is gathered & transmitted by lens to imaging device. (beam splitter)

  10. Camera Function • Beam splitter splits white light into red, green & blue light beams.

  11. Camera Function • Beams are transformed by CCD’s (charge coupled devices) into electrical energy.

  12. Camera Function • Electrical energy is amplified, processed & reconverted into video pictures by the viewfinder.