All video cameras contain 3 major components - the
lens, imager, and recorder. The lens gathers and
focuses the light on the imager, which is normally
a charge coupled device (CCD) or CMOS sensor IC.
Finally, the recorder will encode the video signal
into a form that can be stored. Commonly, the optics
and imager are known as the camera section.
The optic lens is the first component in the camera
section's light path. The optics normally have one
or more the following adjustments:
1. aperture - controls the amount of light
2. zoom - controls the field of view
3. shutter speed - captures continuous motion
In most consumer View the rest of this article
Wednesday, September 12, 2007
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