Video camera
PURPOSE:To eliminate resolution degradation even when an image pickup lens is miniaturized and ghost pictures and an opening part aria are made small by alternating the function of an optical diaphragm part as an alternatable shutter operation in the wide dynamic range of an incident light quantity...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To eliminate resolution degradation even when an image pickup lens is miniaturized and ghost pictures and an opening part aria are made small by alternating the function of an optical diaphragm part as an alternatable shutter operation in the wide dynamic range of an incident light quantity from an object. CONSTITUTION:Incident light from the object is made incident on the image pickup lens 10 and it is lead to the image pickup surface of a CCD 2 and converted to line sequential video signals. The signals are sent to a signal processing means 3 and a luminance chrominance signal separation means 4 similarly to a conventional case and luminance signals are generated and outputted by a luminance signal processing means 5. Then, the luminance signal is turned to two color difference signals by a white balance control means 21 and a chrominance signal processing means 7 and further, converted to the form of carrier signals and outputted by an encoder means 8. Thereafter, the luminance signal is sent to a wide shutter means 22 and the two color difference signals are added to a color flicker extraction means 23 and supplied to a flicker judgement means 16 as two average color difference signal levels. |
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