1. C MOUNT
Mounting format of various camera lenses.
2. CAMERA TUBE
An electron tube that can convert an optical image into an electrical signal by a scanning process.
3. CANDLEPOWER
The unit measure of an incident light.
4. CATHODE-RAY TUBE
The picture tube in a video monitor which can reproduce the picture image seen by the camera.
5. CCTV
The common abbreviation for Closed Circuit Television.
6. CHARACTERISTICS
The electrical specifications of a device, sometimes it is given as a table or curve that shows the variation of one electrical quantity with respect to another.
7. CHROMINANCE SIGNAL
The portion of a composite video signal which contains the color information.
8. CLAMPER
A circuit that establishes a fixed level for the video signal at the beginning of each scanning line.
9. CLIPPING
The process of shearing off the peaks of either the white or the black excursions of the video signal.
10. COATINGS
Light is lost by reflection from optical surfaces that are intended to be refractors only. This loss is effectively reduced by very thin coatings on the lens surfaces. This can be seen as a blue or violet hue on the lens surface.
11. COAXIAL CABLE
A type of cable capable of passing a range of frequencies with low loss. It consists of a hollow metallic shield in which one or more center conductors are put in place and isolated from one another and from the shield.
12. COLOR BURST
The portion of a composite video signal that comprises a few cycles of a sine wave of chrominance subcarrier frequency used to establish a reference
for demodulating the chrominance signal.
13. COMPOSITE VIDEO
The combined video signal that includes the picture signal, the vertical and horizontal blanking and synchronizing pulses.
14. COMPRESSION
The reduction in gain at one level of a video signal with respect to the gain at another level of the same signal.
15. CONTRAST
The range of light and dark values in a picture or the ratio between the maximum and the minimum brightness values. Low contrast is shown mainly
as shades of gray, while high contrast is shown as blacks and whites with very little gray. It is also a TV monitor adjustment which increases or decreases
the level of contrast of a televised picture.
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