- Отрасли: Consumer electronics
- Number of terms: 2480
- Number of blossaries: 0
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One complete TV picture consisting of two sequential interlaced scanned fields. NTSC/EIA has 30 frames of 525 lines per second. PAL/CCIR has 25 frames of 625 lines per second.
Industry:Consumer electronics
Correction law introduced in the camera output signal to compensate for the non-linearity of the CRT (Cathode Ray Tube) in video monitors. A typical gamma value is 0.45, which results in the brightness component of the CRT picture appearing to be linear.
Industry:Consumer electronics
Number of equally spaced vertical black-to-white or white-to-black transitions that the camera is able to reproduce, divided by the aspect ratio (usually 4:3) to make a comparison between horizontal and vertical resolution easier. Usually expressed as TV lines per picture height. Indicates the amount of horizontal details that can be perceived. Horizontal resolution is limited by the number of pixels in one line and by the type of color filter used, if any.
Industry:Consumer electronics
Special camera mode similar to the ‘B’ setting of a photographic camera shutter. The CCD integrates over a long (userdefined) period, providing very high sensitivity. Object must be stationary, external camera control and a frame memory are needed.
Industry:Consumer electronics
Minimum light level needed to achieve a 50% or 100% video output level when the camera is at maximum gain and the lens iris fully open. Can be computed from the nominal sensitivity, lens characteristics and maximum gain.
Industry:Consumer electronics
Sistema de codificación utilizado en la transmisión de señales de televisión analógica en color en la mayor parte del mundo.
Industry:Consumer electronics
Define el poder de resolución de un lente. La mayoría de las lentes presentan su mejor MTF cuando se utilizan en el centro de su rango de apertura del iris.
Industry:Consumer electronics
Es un filtro gris que se coloca delante de un lente para reducir la cantidad de luz que pasa a la cámara. No afecta el color.
Industry:Consumer electronics
Es un sistema de codificación y transmisión de Televisión en color utilizado principalmente en Estados Unidos y Japón.
Industry:Consumer electronics
